JP3349137B2 - Vehicle propulsion 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 vehicle propulsion device for a magnetically levitated railway vehicle traveling at low speed on a ground at a vehicle base or the like.

[0002]

2. Description of the Related Art Superconducting maglev railway vehicles (hereinafter abbreviated as "superconducting linear vehicles") are being developed and tested for practical use as next-generation ultra-high-speed transportation replacing conventional wheels and rails. Is underway. Various methods have been proposed as a vehicle propulsion and levitation method for this superconducting linear vehicle. However, a test line (Yamanashi test line) of a superconducting magnetic levitation type railway which has already been constructed and on which test running is being performed is shown in FIG. As shown in (1), a superconducting linear vehicle 42 is propelled, levitated, and guided by a guideway 41. Specifically, the superconducting linear vehicle 42 travels by the electromagnetic force acting between the propulsion coil 49 and the superconducting magnet 45, and the superconducting linear vehicle 42 travels by the electromagnetic force acting between the levitating / guide coil 50 and the superconducting magnet 45. Emerges and is guided.

[0003] However, the superconducting linear vehicle 42 levitates and runs at high speeds. When the vehicle speed becomes low, the levitating force and the guiding force are weakened and the levitating traveling cannot be performed. Therefore, during low-speed traveling where the vehicle cannot levitate, the vehicle travels on the supporting wheel traveling path 47a by the supporting wheels (rubber tires) 46a attached to the supporting leg device 46, and the vehicle body 43 is guided by the guiding wheels 44b attached to the upper sides of both sides of the bogie 44. Is guided to the guide wheel running path 48a of the side wall 48. Note that the support wheels 46a and the guide wheels 44b are stored inside the bogie 44 during the levitation traveling. Further, the support wheels 46a and the guide wheels 44b themselves have no rotational driving force, and the superconducting linear vehicle 42 cannot travel on its own by the support wheels 46a.

[0004] On the other hand, the superconducting linear vehicle 42 is usually kept in a depot except when traveling on a main line, and operations such as cleaning of the vehicle, periodic inspection, and repair of defects are performed. Therefore, in order to move the vehicle between the main line and the vehicle depot or in the depot (running by the support wheels 46a), the superconducting linear vehicle 42 must be naturally propelled and guided also in the depot. Equipment is also required.

[0005] Therefore, it is theoretically possible to provide propulsion and guidance by providing side walls on both sides of a track inside the base having supporting wheel running paths in the depot, as well as the main line, and attaching propulsion coils to the walls. However, with such a configuration, it is necessary to provide side walls and propulsion coils on both sides for each base station track, and equipment on the base track becomes as large as the main line, and a plurality of detention lines and The area of a vehicle depot having maintenance lines and the like becomes very large. As a result, the construction cost of the vehicle depot becomes extremely large, and the construction period is extended. Furthermore, since there are side walls on both sides of the track, workability such as maintenance and inspection of the vehicle is extremely deteriorated, and there is a possibility that a serious problem may occur in the ease of maintenance and inspection of the vehicle which the depot originally has. is there.

[0006] As a conventionally proposed method of moving a vehicle in a vehicle depot, for example, a propulsion system using a ground-mounted ground coil is disclosed in Japanese Patent Laid-Open No. Hei 6-327103.
As shown in FIG. 7, the propulsion electromagnetic coil 58 corresponding to the superconducting coil 53 mounted on the bogie 52 of the superconducting linear vehicle 51 is provided on the track floor 57 on both sides of the track 56,
It is provided continuously along the running direction of the superconducting linear vehicle 51 and on both sides of the track 56, and adjusts the current flowing through the propulsion electromagnetic coil 58, similarly to the propulsion principle of the superconducting linear vehicle traveling on the main line. Thus, the superconducting linear vehicle 51 is propelled. During the propulsion of the superconducting linear vehicle 51, the superconducting linear vehicle 51 travels on the wheel traveling path 56a of the track 56 by the support wheels 54 while being guided by the guide wheel 55 and the guide rail 59 provided on the wheel traveling path 56a.

[0007]

However, the vehicle moving method disclosed in the above-mentioned publication can remove the side wall of the track installed on the guideway of the main line, but the vehicle moving method on the vehicle side as compared with when traveling on the main line. Since the distance between the superconducting coil 53 and the propulsion electromagnetic coil 58 on the orbital side is increased, and is not opposed to each other, a magnetic coupling loss occurs. Therefore, to obtain a predetermined propulsion force, the propulsion electromagnetic coil 58
It is necessary to take measures such as increasing the current flowing through the motor or increasing the number of turns of the propulsion electromagnetic coil 58.

As a result, the size of the propulsion electromagnetic coils 58 and the power supply equipment for supplying power thereto are increased, and the economic burden is increased. Further, since the propulsion electromagnetic coil 58 is installed on both sides of the track 56 on the track floor 57, when performing maintenance and inspection of the superconducting linear vehicle 51, an operator climbs over the propulsion electromagnetic coil 58 and moves the vehicle. Must be approached, which may hinder maintenance and inspection work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the equipment for moving a vehicle at a vehicle depot is reduced in size to reduce the economical burden of vehicle depot construction, and to improve workability such as vehicle inspection. The purpose is to:

[0010]

Means for Solving the Problems and Effects of the Invention The vehicle propulsion device according to the first aspect of the present invention has been developed to solve the above-mentioned problems. A vehicle propulsion device for propelling and guiding the vehicle to travel on a track by supporting wheels provided at a lower portion, wherein a plurality of propulsion electromagnets are provided on one of the side surfaces of the vehicle. The propulsion is provided only on one side of the track so as to substantially face the side electromagnet .
The electromagnet is installed intermittently along the traveling direction of the vehicle.
It is characterized by having been done.

In this vehicle propulsion device, a plurality of propulsion electromagnets are provided along the traveling direction of the vehicle only on one side of a track on which a magnetically levitated railway vehicle runs, and the propulsion electromagnet and the vehicle The interaction with the electromagnet propells the maglev train. Since the traveling speed of the magnetically levitated railway vehicle in the wheel traveling area is lower than that during levitating traveling on the main line, a track-side electromagnet for propelling the magnetically levitated railway vehicle is provided on only one side of the track. However, sufficient propulsion can be obtained.

According to the above-described vehicle propulsion device, since the track-side electromagnet is provided only on one side of the track, the power consumption is small and economical, and the vehicle propulsion device in a vehicle depot or the like can be made compact. . Therefore, the construction cost of the vehicle propulsion device or the vehicle depot can also be reduced. Also, one side of the track where no propulsion electromagnet is provided is free space, and it is easy to approach the vehicle,
Workability such as inspection can be greatly improved.

Further , as described above, the magnetic levitation type railway vehicle is propelled by the interaction between the vehicle-side electromagnet and the track-side electromagnet. Therefore, the propulsion electromagnet is not necessarily continuous over the entire length of the track. It is not necessary to provide such a structure, and it is sufficient that an interaction (attraction force or repulsion) occurs between the vehicle-side electromagnet and the track-side electromagnet so that the vehicle can be propelled.
Therefore, in the present invention, the propulsion electromagnet is installed intermittently,
The propulsion of the magnetic levitation vehicle is obtained. The intervals between the propulsion electromagnets may be appropriately determined so that a minimum propulsion force capable of propelling the magnetically levitated railway vehicle at a desired speed is obtained.

According to this vehicle propulsion device, since the propulsion electromagnets are intermittently installed, the number of propulsion electromagnets can be reduced as compared with the case where the propulsion electromagnets are continuously installed. Therefore, the construction cost of the vehicle propulsion device can be further reduced. In addition, the intermittent arrangement of the propulsion electromagnets makes the intermittent part where the propulsion electromagnets are not installed a free space, thereby making it easier to approach the vehicle. Therefore, workability such as maintenance and inspection of the magnetic levitation railway vehicle is further improved.

The vehicle propulsion device according to claim 2, the magnetic floating
When traveling at a low speed at a depot or the like of an upper-type railway vehicle, the vehicle
Traveling on the track by supporting wheels provided at the lower part of
Vehicle propulsion device for propelling and guiding the vehicle
A plurality of propulsion electromagnets
So as to substantially oppose the vehicle-side electromagnet provided on the side surface of
The propulsion electromagnet is provided only on one side of the track ,
A plurality of electromagnets for propulsion are configured by being arranged adjacent to each other along the traveling direction of the vehicle, and the electromagnet assemblies for propulsion are intermittently installed along the traveling direction of the vehicle. It is characterized by. The number of propulsion electromagnets constituting the propulsion electromagnet assembly and the installation interval of the propulsion electromagnet assembly are appropriately determined so that the minimum propulsion force capable of propelling the magnetic levitation railway vehicle at a desired speed can be obtained. Good. According to this vehicle propulsion device, the same operation and effect as the vehicle propulsion device according to the first aspect can be obtained.

Here, the vehicle propulsion devices according to the first and second aspects of the present invention are used for propulsion in order to reduce the construction cost of the vehicle propulsion device and the vehicle depot, or to improve the workability during maintenance and inspection of the vehicle. Although the electromagnet is provided only on one side of the track, a vehicle propulsion device as described in claim 3 may be used. The vehicle propulsion device according to claim 3 , wherein when the magnetic levitation type railway vehicle is traveling at a low speed at a vehicle depot or the like, the vehicle is propelled and guided to travel on a track by supporting wheels provided at a lower portion of the vehicle. A plurality of propulsion electromagnets are provided on both sides of the track so as to substantially oppose a vehicle-side electromagnet provided on a side surface of the vehicle, and each of the propulsion electromagnets is Are intermittently installed along the traveling direction of the vehicle on both sides of the vehicle.

According to the vehicle propulsion device of the third aspect , since the propulsion electromagnets are intermittently arranged on both sides of the track, the construction cost of the vehicle propulsion device and the vehicle base can be reduced or the construction of the vehicle propulsion device can be reduced. In addition to the effects of improving the workability during maintenance and inspection of the vehicle, the free space is used because the intermittent area where the propulsion electromagnet is not installed is free space, especially on both sides of the vehicle. Thus, the approach to the vehicle can be performed from both sides of the vehicle.

Further, the intermittent arrangement of the propulsion electromagnet in track both sides, in the vehicle propulsion device of the third aspect has been to each propulsion electromagnet individually intermittently arranged, for example, according to claim 4 As described above, a propulsion electromagnet assembly including a plurality of propulsion electromagnets may be intermittently installed.

That is, the vehicle propulsion device according to claim 4 is
A vehicle propulsion device for propelling and guiding the vehicle to travel on a track by supporting wheels provided at a lower portion of the vehicle when the magnetic levitation type railway vehicle travels at a depot or the like at a low speed. Electromagnets are provided on both sides of the track so as to substantially oppose a vehicle-side electromagnet provided on the side surface of the vehicle, and the propulsion electromagnets are adjacent to each other along the traveling direction of the vehicle. The propulsion electromagnet assembly is constituted by being disposed, and the propulsion electromagnet assembly is intermittently installed on both sides of the track along the traveling direction of the vehicle. This contract
According to the vehicle propulsion device described in claim 4 , the same operation and effect as the vehicle propulsion device described in claim 3 can be obtained.

Also in the inventions according to the third and fourth aspects, the installation intervals of the propulsion electromagnets (in the case of the third aspect ), or the number of propulsion electromagnets constituting the propulsion electromagnet assembly and the propulsion electromagnets Installation intervals of aggregates (in the case of claim 4 )
May be appropriately determined so that the minimum propulsion force that can propel the magnetically levitated railway vehicle at a desired speed is obtained. Further, at this time, if the propulsion electromagnets or the propulsion electromagnet assemblies are arranged in a staggered arrangement on both sides of the track, the vehicle-side electromagnets provided on both sides of the vehicle and either of the two sides of the track can be used. This is more preferable because the opposing interval (time interval) with the propulsion electromagnet becomes more uniform and a smooth propulsion force / braking force can be obtained.

By the way, the guide of the magnetic levitation type railcar in the depot is generally performed by rotating the guide wheel 55 along the guide rail 59 as shown in FIG. When guiding a magnetically levitated railway vehicle, the traveling speed of the vehicle must be suppressed to a very low speed, for example, about 5 km / h. The reason for this will be described in detail below with reference to FIGS.

The guide wheel 55 has a guide rail 59.
As a result, a load is applied in a direction transverse to the traveling direction of the vehicle. Here, although not shown in FIG. 7, in order to travel while supporting the superconducting linear vehicle 51 with the support wheels 54, the support wheels 54 are generally supported by the support legs 61 via the axle 62 as shown in FIG. 8. Supported. Therefore, the lateral load applied to the guide wheel 55 by the guide is consequently transmitted to the fulcrum of the support leg 61 (inside the bogie 52) via the axle 62 and the like, and a load (moment) is applied to the fulcrum of the support leg 61. Will be. In addition, due to the mounting structure of the guide wheel 55, the guide wheel 55 (the point of action) and the support leg 6
Distance from fulcrum 1 (so-called arm length of moment)
Is shorter than the distance from the fulcrum of the support leg 61 to the axle 62, and depending on the distance,
Can add a great burden to the fulcrum.

Normally, the supporting legs 61 have sufficient strength against the load applied in the traveling direction,
Although the vehicle can safely travel and stop even if it lands for some reason during levitation travel of 00 km or more, its strength against a load applied in the lateral direction is relatively low. When traveling on the main line with the support wheels 54, the guide wheels 4
4b is guided on the guide wheel running path 48a (see FIG. 6), so that the lateral load is hardly applied to the support leg 61. On the other hand, when traveling in the depot as shown in FIG. 7, the guide wheel 55 is guided by the guide rail 59, so that the lateral load applied to the guide wheel 55 increases as the vehicle traveling speed increases. That is, the lateral load applied to the fulcrum of the support leg 61 increases accordingly. Therefore, in order to ensure the reliability of the support leg 61, the vehicle traveling speed must be suppressed to a very low speed, for example, about 5 km / h, and the load on the support leg 61 in the lateral direction must be suppressed as much as possible.

However, if the vehicle traveling speed in the depot is a very low speed of about 5 km / h, for example, it takes time to move a maglev train from one place in the base to another. During that time, work such as maintenance and inspection cannot be performed on the vehicle, so that an inconvenience such as a loss of work time occurs and efficient work cannot be performed. As a result, the time during which other magnetically levitated railway vehicles other than the moving vehicle are parked in the depot becomes longer, which leads to an increase in unnecessary detention of the vehicles.

Therefore, a vehicle propulsion device according to a fifth aspect is the vehicle propulsion device according to any one of the first to fourth aspects, wherein the vehicle propulsion device guides the vehicle to a substantially central portion of the track. A convex center guide provided along the traveling direction of the vehicle, and a center guide wheel provided on the bottom of the vehicle so as to sandwich both side surfaces of the convex portion of the center guide to guide the vehicle. It is characterized by having.

In the above vehicle propulsion device, the guide of the magnetic levitation type railway vehicle is performed by the convex center guide provided substantially at the center of the track and the center guide wheel provided in the magnetic levitation type railway vehicle. . The center guide wheel of a magnetic levitation railway vehicle has, for example, two wheels that rotate in the horizontal direction with respect to the track plane, each center guide wheel sandwiches the center guide on the track from both sides, and each center guide wheel May be mounted so as to rotate along both side surfaces of the center guide as the magnetically levitated railway vehicle travels. With this configuration, the center guide wheel always rotates while running along the center guide during traveling of the magnetic levitation railway vehicle, so that the magnetic levitation railway vehicle is reliably guided. For the center guide wheel, a rotating body such as a tire may be used, or a freely rotatable ball or the like may be used.

According to the vehicle propulsion device described above, the magnetic levitation type railway vehicle is guided by the center guide and the center guide wheel, so that the load caused by the vehicle guide is hardly applied to the support wheels, and the support wheels are supported. The burden on the wheels can be reduced. As a result, it is possible to increase the moving speed of the magnetically levitated railway vehicle, and it is possible to reliably and promptly guide the vehicle, thereby reducing the time required for the vehicle to move.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an in-base vehicle propulsion device of a superconducting maglev railway, and FIG. 2 is a sectional view showing an in-base vehicle propulsion device and a superconducting linear vehicle of a superconducting maglev railway. As shown in FIG. 1, the in-base vehicle propulsion device 10 mainly includes an in-base track 13 and a plurality of propulsion coil devices 11 provided on one side thereof.

The in-base track 13 is laid for running wheels of a superconducting linear vehicle 20 (see FIG. 2) at a vehicle depot or the like, and is a concrete center for guiding the superconducting linear vehicle 20 described later. The guide 12 is provided along the entire length of the in-base track 13 in the length direction thereof. On both sides separated by a predetermined distance from the center guide 12, a support wheel traveling path 13a on which the support wheel 24a of the superconducting linear vehicle 20 travels is provided. The track 13 is provided in the length direction over the entire length of the in-base track 13.

The propulsion coil device 11 comprises three adjacent propulsion coils 11a attached to a concrete side wall 11b. The propulsion coil device 11 is disposed on one side of the base track 13 along the traveling direction of the superconducting linear vehicle 20. It is provided intermittently. The interval between the propulsion coil devices 11 is set to be the same as the length of the bogie 22 of the superconducting linear vehicle 20, for example, such that the superconducting linear vehicle 20 can propel the vehicle base at a desired speed (for example, about 30 km / h). May be determined appropriately so as to obtain the thrust. Further, power for generating a magnetic field from each propulsion coil 11a is supplied to each propulsion coil 11a from a power conversion substation (not shown).

More specifically, in this embodiment, three-phase AC power is supplied to each propulsion coil device 11, and each of the three propulsion coils 11a constituting the propulsion coil device 11 has a speed corresponding to the vehicle speed to be driven. Three-phase alternating currents (U-phase current, V-phase current, W-phase current) of the corresponding frequencies flow, respectively.
Then, as the magnetic fields generated from the respective propulsion coils 11a overlap, as a result, a magnetic field in which the N-pole and the S-pole alternately and continuously change is generated from the propulsion coil device 11.

Next, the superconducting linear vehicle 20 propelled by the in-base vehicle propulsion device 10 will be described with reference to FIG. The superconducting linear vehicle 20 traveling on the base track 13 is mainly composed of a vehicle body 21 and a bogie 22. The vehicle body 21 has a passenger compartment, a door for getting on and off, and the like (not shown), like the vehicle body of a conventional railway vehicle that travels on iron wheels and rails. Since the superconducting linear vehicle 20 is required to be thoroughly reduced in weight and increased in strength due to the unique traveling condition of ultra-high speed levitation traveling, an aluminum alloy is used as a structural material of the vehicle body 21, The structure is also a semi-monocoque structure similar to an aircraft. In addition, the surface of the vehicle body 21 is entirely smooth to minimize air resistance during traveling.

The carriage 22 mainly includes a superconducting magnet 23, a support leg device 24, a center guide wheel device 25, and a guide wheel 22b.
The upper part of the vehicle body 2 is provided with an air spring 22a.
1, and plays an important role in propelling the superconducting linear vehicle 20 by a propulsive force generated by a magnetic interaction between the superconducting magnet 23 and the propulsion coil device 11.

The superconducting magnets 23 provided on both sides of the bogie 22 are constituted by four superconducting coils 23a installed adjacent to one side of the bogie 22 in the longitudinal direction of the vehicle.
Each superconducting coil 23a is housed together with liquid helium in a stainless steel inner vessel (not shown). The superconducting coil 23a is formed by winding a superconducting wire, such as a niobium-titanium alloy, several thousand times, and generates a magnetic field by flowing an electric current. In addition, the superconducting magnet 23 is provided for cooling the superconducting coil 23a to maintain the superconducting state.
An onboard refrigerator (not shown) with liquid helium is also provided. The polarities of four adjacent superconducting coils 23a in the superconducting magnet 23 are arranged such that adjacent poles are different from each other (that is, N poles and S poles are alternately arranged). Although not shown in FIG. 2, in the present embodiment, three superconducting magnets 23 are provided on both sides of the superconducting linear vehicle 20 in the entire length direction of the vehicle (see FIG. 5 described later).

The supporting leg device 24 supports and guides the superconducting linear vehicle 20 during low-speed running where sufficient levitation force and guiding force cannot be obtained. Even if the vehicle lands at a speed of 500 km / h or more, it is safe. The vehicle is provided with a high-performance support wheel 24a capable of running and stopping, a disc brake (not shown) for braking the rotation of the support wheel 24a, and the like.

The center guide wheel device 25 is arranged such that two center guide legs 25b each having a freely rotatable center guide wheel 25a at the tip thereof are symmetrically positioned with respect to the center guide 12 near the center of the bogie 22. In addition, the center guide wheel 25a is mounted along both side surfaces of the center guide 12 so as to be rotatable in the horizontal direction with respect to the base track 13. Although a rubber tire is used as the center guide wheel 25a, any material can be used as long as it can guide the superconducting linear vehicle 20 during low-speed running in a vehicle depot or the like (for example, during low-speed running at about 30 km / h). Anything such as a ball-shaped rotating body that rolls along the side surface of the center guide 12 may be used, or a guide shoe or the like may be used. Trolley 22
The guide wheel 22b provided on the upper side of the superconducting magnet 23 on both side surfaces of the
Since it is the same as b, its description is omitted here.

The support wheels 24a and the guide wheels 22b
Are provided at four places (two places on one side surface) of the carriage 22 and are used during taxiing when the vehicle cannot levitate, and are all stored inside the carriage 22 during the levitating travel. The center guide wheel device 25 is provided at two places on the carriage 22 and is stored inside the carriage 22 for guiding by the guide wheels 22b when traveling on a mainway guideway or the like. If not,
That is, it is used when traveling on the base track 13 having the center guide 12.

Next, traveling of the superconducting linear vehicle 20 on the in-base track 13 by the in-base vehicle propulsion device 10 will be described. The traveling of the superconducting linear vehicle 20 on the base track 13 is in principle the same as the method in which the superconducting linear vehicle 20 travels on a guideway or the like on the main line. That is, the magnetic field generated from the superconducting magnet 23 on the superconducting linear vehicle 20 side,
The superconducting linear vehicle 20 is propelled by interaction with a magnetic field generated from each propulsion coil 11 a of the propulsion coil device 11, and travels on the base track 13. For that purpose, first, it is necessary to generate a magnetic field from the superconducting magnet 23 of the superconducting linear vehicle 20.

Usually, once a current is passed through the superconducting coil 23a, a magnetic field is generated from the superconducting magnet 23, and the current continues to flow as long as the superconducting coil 23a maintains the superconducting state (permanent current). Magnetic field generation also continues. Therefore, even if the superconducting linear vehicle 20 traveling on the guideway of the main line enters the depot, a magnetic field continues to be generated from the superconducting magnet 23. When a permanent current is extracted from the superconducting coil 23a for detention, inspection, or the like in the vehicle depot, a current may be applied to the superconducting coil 23a again before traveling to generate a permanent current. Further, since the permanent current flowing through each superconducting coil 23a is a steady current, the strength and polarity of the generated magnetic field are constant for each superconducting coil 23a.

Accordingly, by supplying electric power (three-phase AC power in this embodiment) to each propulsion coil device 11 to generate a magnetic field, and by appropriately adjusting the three-phase AC current flowing through each propulsion coil 11a, , Each propulsion coil device 11
And the superconducting magnet 23 on the opposing superconducting linear vehicle 20 side
(Attractive force or repulsive force) is generated between the superconducting linear vehicle 20 and the propulsion. That is, the propulsion coil device 1
1 by passing a three-phase alternating current through each of the propulsion coils 11a, the propulsion is performed by the interaction between the alternating magnetic field generated by the propulsion coil device 11 and the magnetic field generated by the superconducting magnet 23 of the superconducting linear vehicle 20. It utilizes the principle of propulsion by an asynchronous motor.

As described above, the superconducting linear vehicle 20
Travels in the depot at a speed of about 30 km / h, which is lower than when traveling on the main line.
A sufficient propulsion force can be obtained even if 1 is installed only on one side of the intra-base track 13 and intermittently. The propulsion force of the superconducting linear vehicle 20 can be adjusted by changing the magnitude of the current flowing through the propulsion coil 11a.
It can be adjusted by changing the frequency of the current flowing through the propulsion coil 11a.

When the superconducting linear vehicle 20 travels on the base track 13 by the base vehicle propulsion device 10, the superconducting linear vehicle 20 is guided by the center guide wheel device 25 provided below the bogie as described above. Will be That is, each center guide wheel 2 of the center guide wheel device 25
The superconducting linear vehicle 20 is guided while rotating along the center guide 12 as the superconducting linear vehicle 20 travels, so that the superconducting linear vehicle 20 can be guided.

The distance between the center guide wheel 25a and the fulcrum of the center guide leg 25b can be shorter than the distance between the guide wheel 55 and the fulcrum of the support leg 61 in FIG. Since it is not necessary to support the weight of the superconducting linear vehicle 20, the supporting leg device 2
It does not require as much reliability as four. Therefore, it is sufficient for the center guide wheel device 25 to have sufficient strength to withstand the load burden caused by vehicle guidance when traveling at low speed in a vehicle depot or the like.

In the above embodiment, the three propulsion coils 11a constituting the propulsion coil device 11 correspond to the propulsion electromagnet assembly of the present invention, and each propulsion coil 11a corresponds to the propulsion electromagnet of the present invention. The superconducting magnet 23 corresponds to the vehicle-side electromagnet of the present invention.

Therefore, according to the in-base vehicle propulsion device 10 of this embodiment, since the propulsion coil device 11 is provided only on one side of the in-base track 13, the power consumption is small and the vehicle is economical. The propulsion device 10 can also be made compact. Therefore, the construction cost of the in-base vehicle propulsion device 10 or the entire vehicle base can be reduced. Further, one side of the track 13 in the base where the propulsion coil device 11 is not provided is free space, and the superconducting linear vehicle 20 can be easily approached, so that workability such as maintenance and inspection can be greatly improved.

Moreover, the propulsion coil devices 11 are provided only on one side of the in-base track 13 and the propulsion coil devices 11 are provided intermittently. Thus, the number of the propulsion coil devices 11 can be reduced, and the construction cost of the in-base vehicle propulsion device 10 can be further reduced. In addition, the intermittent arrangement of the propulsion coil device 11 also provides a free space at the intermittent portion where the propulsion coil device 11 is not installed, making it easier to approach the vehicle. Therefore, workability such as maintenance and inspection of superconducting linear vehicle 20 is further improved.

The superconducting linear vehicle 20 is guided by the center guide 12 and the center guide wheel 25a, so that the support leg device 24 needs to be provided with a guide wheel 55 (see FIG. 7) which does not contribute to running on the main line at all. There is no. Therefore, the load due to the guidance of the vehicle is hardly applied to the support leg device 24, and the load on the support leg device 24 can be reduced. As a result, the superconducting linear vehicle 20
It is also possible to increase the traveling speed of the vehicle, to reliably guide the vehicle and to promptly propell the vehicle (for example, 30 km / h or more), and to reduce the time required for the vehicle to move. Thus, the work can be performed efficiently, and the useless staying time of the superconducting linear vehicle other than the moving superconducting linear vehicle can be reduced.

Further, when the height of the center guide 12 is made as close as possible to the lower part of the superconducting linear vehicle 20, the center guide wheel 25a is accordingly moved.
0 (lower surface of the bogie 22) and the distance between the center guide wheel 25a and the fulcrum of the center guide leg 25b can be shortened, so that the lateral load applied to the fulcrum of the center guide leg 25b can be reduced.

The embodiments of the present invention are not limited to the above-mentioned embodiments at all, and it goes without saying that various forms can be adopted as long as they fall within the technical scope of the present invention. For example, in the above embodiment, the propulsion coil device 11
May be continuously arranged adjacent to each other without intermittently arranged. However, in this case, since it is difficult to approach the superconducting linear vehicle 20 from the side where the propulsion coil device 11 is provided, it is more preferable to arrange the intermittently as in the above embodiment.

In the above embodiment, the propulsion coil device 11 is intermittently provided on only one side of the in-base track 13. However, for example, as shown in FIG. It may be arranged. FIG. 3 is a plan view showing another embodiment of the in-base vehicle propulsion device.
That is, in the above-described embodiment, a plurality of propulsion coil devices 11 intermittently provided on one side (for example, the left side in the vehicle traveling direction) of the intra-base track 13 are alternately arranged on the right side, thereby achieving a staggered arrangement. It was done. Also in this case, the construction cost of the in-base vehicle propulsion device 30 or the entire vehicle depot can be reduced, and the intermittent portion where the propulsion coil device 11 is not installed on both sides of the in-base track 13 becomes free space. Therefore, the approach to the superconducting linear vehicle 20 can be performed from both sides of the vehicle using the free space, and workability such as maintenance and inspection is also improved.

In this case, the arrangement is not limited to the staggered arrangement, and any arrangement is conceivable as long as the propulsion coil devices 11 are arranged intermittently on both sides of the intra-base track 13 respectively. When the vehicle is traveling, the opposing interval (time interval) between the superconducting magnet 23 on the vehicle side and the propulsion coil device 11 on one of the two sides of the track 13 in the base during traveling is configured. ) Is more uniform because smooth propulsion and braking force can be obtained.

Further, in the above embodiment, the power supplied to the propulsion coil device 11 is three-phase AC power. However, the power may be, for example, single-phase AC power or two-phase AC power. Not done. In this regard, in the above-described embodiment, the number of the propulsion coils 11a provided in one propulsion coil device 11 for supplying three-phase AC power is three, but is not limited thereto, and is, for example, six or nine. May be provided. Further, for example, when two-phase AC power is supplied, two propulsion coils 11a may be provided on the side wall 31a to configure the propulsion coil device 31, as shown in FIG.
Can be appropriately determined within a range in which the thrust of the superconducting linear vehicle 20 in the depot can be sufficiently obtained. Furthermore, when single-phase AC power is supplied, the propulsion coil 11a itself is intermittently arranged independently (in other words, the propulsion coil 11a provided in each propulsion coil device 11).
a may be set to one).

That is, the number of the propulsion coils provided in one propulsion coil device is not particularly limited, for example, when n-phase AC power is supplied, one propulsion coil device is composed of an integral multiple of n. Instead, the spacing between the propulsion coil devices may be determined as appropriate in consideration of the arrangement of the superconducting magnets 23 on the vehicle side.

As described above, the combination of the number of propulsion coils constituting the propulsion coil device and the interval between the propulsion coil devices can be any pattern as long as the operation and effect of the present invention can be achieved. One propulsion coil device is constituted by the number of propulsion coils 11a of an integral multiple of the number of phases of power supplied to the vehicle, and the installation interval of each propulsion coil device is an integer of the installation pitch of each superconducting coil 23a on the vehicle side. When it is doubled, the propulsion / braking force acting between the propulsion coil device and each superconducting coil 23a on the vehicle side opposed thereto becomes equal for each propulsion coil device,
This is more preferable because smooth propulsion and braking of the vehicle can be realized.

As a combination of the number of the propulsion coils and the interval between the respective propulsion coil devices, specifically, for example, a combination as shown in FIG. 5 can be considered.
FIG. 5 is an explanatory diagram illustrating an example of an arrangement pattern of the propulsion coil devices. Note that the configuration of the superconducting linear vehicle 20 and each propulsion coil 11a in FIG. 5 is the same as that described in FIG. 1 or 2, and therefore, these components are denoted by the same reference numerals as those in FIG. Omitted.

As shown in FIG. 5, the installation pitch of four superconducting coils 23a disposed adjacent to each other in each superconducting magnet 23 is τ (for example, τ = 1.35 m), and each superconducting magnet 23 is spaced at an interval of 16τ. Are located. For each superconducting magnet 23 on the vehicle side, in each of the propulsion coil devices 71, 72, and 73 on the track side facing the superconducting magnet 23, three propulsion coils 11a are formed into one set (total length 2τ) of propulsion coil groups. Three-phase AC power is supplied to each set, and U-phase, V-phase, and W-phase three-phase AC currents are supplied to the three propulsion coils 11a of each set.

FIG. 5A shows an example in which one propulsion coil device 71 is constituted by two sets of propulsion coil groups, and the propulsion coil devices 71 are arranged at intervals of 10τ. FIG. 5B shows an example in which one propulsion coil device 72 is configured by three sets of propulsion coil groups, and the propulsion coil devices 72 are arranged at intervals of 14τ.
Further, FIG. 5C shows one propulsion coil device 73 composed of four sets of propulsion coil groups.
Are arranged at intervals of 18τ.

In FIG. 5A, the interval between the propulsion coil devices 71 is set to 10 τ. However, the interval is not limited to 10 τ. For example, a superconducting linear vehicle 20 such as 8 τ, 12 τ, 14 τ. What is necessary is just to set suitably within the range which can be propelled at the speed. The same applies to FIGS. 5B and 5C. FIG. 5 also shows the number of sets of the propulsion coil group.
The number of sets is not limited to two to four as shown in (a) to (c), but can be set appropriately, such as one or five or more.

In the above-described embodiment, one superconducting magnet 23 is constituted by four superconducting coils 23a. However, the number of superconducting magnets 23 is not limited to four. What is necessary is just to determine in consideration of the relative relationship with the propulsion coil device. Further, the arrangement interval of each superconducting magnet 23 is not limited to 16τ as shown in FIG.

The center guide 12 is also made of concrete in this embodiment, but is not limited to this, and may be made of any material that can reliably guide the superconducting linear vehicle 20, such as made of low magnetic steel. Further, in order to guide the superconducting linear vehicle 20, it is possible to guide the superconducting linear vehicle 20 by the conventional guide rail 59 and guide wheel 55 (see FIG. 7) without using the center guide wheel device 25 as in the above-described embodiment. However, as described above, since the vehicle speed cannot be increased by such a guidance method, the guidance by the center guide wheel 25a as in the above embodiment is more preferable from the viewpoint of shortening the vehicle traveling time.

Further, the vehicle propulsion device of the present invention is not limited to the superconducting linear vehicle 20 shown in the above embodiment, but may be any linear motor driven railway such as a normal conductive magnetic levitation railway or a linear motor driven vehicle driven by iron wheels. It can be applied to vehicles.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle propulsion device in a base of a superconducting magnetic levitation railway according to the present embodiment.

FIG. 2 is a cross-sectional view showing an in-base vehicle propulsion device and a superconducting linear vehicle of the superconducting magnetic levitation railway according to the present embodiment.

FIG. 3 is a plan view showing another embodiment of the in-base vehicle propulsion device.

FIG. 4 is a perspective view showing another embodiment of the in-base vehicle propulsion device.

FIG. 5 is an explanatory diagram showing an example of an arrangement pattern of a propulsion coil device.

FIG. 6 is a sectional view showing a conventional guideway and a superconducting magnetic levitation type railway vehicle (superconducting linear vehicle).

FIG. 7 is a schematic sectional view of a propulsion method using a floor-mounted ground coil.

FIG. 8 is an explanatory view showing a periphery of a support wheel in a propulsion system using a floor-mounted ground coil.

[Explanation of symbols]

 10, 30 ... in-base vehicle propulsion device 11, 31, 71-73 ... propulsion coil device 11a ... propulsion coil 11b, 31a ... side wall, 12 ... center guide 13 ... in base Track 13a: Support wheel running path 20: Superconducting linear vehicle 21: Body, 22: Truck 22b: Guide wheel, 23: Superconducting magnet 23a: Superconducting coil 24 ... Support leg device 24a Support wheel 25 Center guide wheel device 25a Center guide wheel 25b Center guide leg 41 Guideway

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60L 13/03 B61B 13/08

Claims (5)

(57) [Claims] 1. A vehicle propulsion device for propelling and guiding a magnetically levitated railway vehicle when traveling at a low speed at a depot or the like, in order to allow the vehicle to travel on a track by supporting wheels provided at a lower portion of the vehicle. A plurality of propulsion electromagnets are provided on only one side of the track so as to substantially oppose a vehicle-side electromagnet provided on one of the side surfaces of the vehicle , and the propulsion electromagnet is provided on the vehicle. Intermittent along the direction of travel
A vehicle propulsion device characterized by being installed in a static manner . 2. A low-lift system at a depot of a magnetically levitated railway vehicle.
When the vehicle is traveling at high speed, the support wheels provided at the lower portion of the vehicle
Propulsion and guidance of the vehicle in order to make it travel on the track
A vehicle propulsion device , wherein a plurality of propulsion electromagnets are provided on one of side surfaces of the vehicle.
So as to substantially oppose the vehicle-side electromagnet provided on the surface.
The propulsion electromagnet is provided only on one side of the track, and a plurality of propulsion electromagnets are provided along the traveling direction of the vehicle.
Propelling electromagnet assembly
The propulsion electromagnet assembly is configured to move in the traveling direction of the vehicle.
A vehicle propulsion device characterized by being installed intermittently along a road . 3. A vehicle propulsion device for propelling and guiding a magnetically levitated railway vehicle when traveling at a low speed at a depot or the like, in order to allow the vehicle to travel on a track by supporting wheels provided at a lower portion of the vehicle. A plurality of propulsion electromagnets are provided on both sides of the track so as to substantially oppose a vehicle-side electromagnet provided on a side surface of the vehicle, and the propulsion electromagnets are provided on both sides of the track on the vehicle. A vehicle propulsion device characterized by being installed intermittently along the traveling direction of a vehicle. 4. A during low speed running of the vehicle base of the magnetic levitation railway vehicle, propel the vehicle for running on the track by a supporting wheel provided in a lower portion of the vehicle, there in a vehicle propulsion system that guides A plurality of propulsion electromagnets are provided on both sides of the track so as to substantially oppose a vehicle-side electromagnet provided on a side surface of the vehicle, and each of the propulsion electromagnets extends along a traveling direction of the vehicle. A plurality of electromagnets for propulsion are configured by being arranged adjacent to each other, and the electromagnet assemblies for propulsion are intermittently installed along the traveling direction of the vehicle on both sides of the track. Characteristic vehicle propulsion device. A substantially central portion of claim 5, wherein said track, and a convex center guide provided along the traveling direction of the vehicle to guide the vehicle, the bottom of the vehicle, for guiding the vehicle claim, characterized in that a center guide wheel provided so as to sandwich both side surfaces of the convex portion of the center guide 1-4
The vehicle propulsion device according to any one of the above.