JPS6318401B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a propulsion and guide coil device for a superconducting magnetically levitated vehicle.

[Technical background of the invention and its problems]

Currently, the development of levitation trains using superconducting electromagnets, that is, superconducting magnetic levitation vehicles, is progressing, and many results have been obtained and bright prospects have been established.
Considering the actual vehicle configuration, the trajectory is U
It has come to be considered preferable to have a U-shaped cross-section, and experiments using test vehicles and theoretical analyzes are being promoted with a U-shaped cross-section track. FIG. 1 is a cross-sectional view of the current test vehicle and its track, where 1 is the vehicle body, and 2, 2 is the bogie underframe 4 that supports the vehicle body 1 via air springs 3, 3.
It shows the left and right superconducting electromagnets installed on both sides of the As the ground-side coils facing this, propulsion guide coils 6, 6 are embedded in the opposing surfaces of both side walls 5A, 5A of the U-shaped cross-section track 5, and levitation coils 7, 7 are arranged in a row over the entire length in the traveling direction. The levitation coils 7, 7 provide a levitation force, and the propulsion guide coils 6, 6 provide a propulsion guiding force, so that the vehicle 1 is propelled and propelled together with the bogie frame 4. Here, when running at high speed, there is no contact with the track 5, but when running at low speed, neither the levitation force nor the guiding force is sufficiently generated, so the running wheels 8, 8 and guide wheels 9 protruding from the bogie frame , 9 are in rolling contact with the 5th surface of the track. Also, if something abnormal occurs during high-speed driving, the running wheels 8, 8, guide wheels 9, 9
Alternatively, an emergency skiing shoe (not shown) makes an emergency skiing landing on the surface of the track 5.

In the case of a superconducting magnetically levitated vehicle having such a configuration, the running wheels 8, 8 of the bogie underframe 4 can be arranged inside the levitation coils 7, 7, so the levitation coils 7, 7 can be placed inside the wheels 8, 7. No special structural consideration is required since the 8th grade does not come into contact. However, it is also possible to install the guide wheels 9 on both sides above the propulsion guide coil 6, but the U-shaped cross-section track 5
Considering this, it is advantageous in constructing the track because the moment received by the side wall 5A will be smaller if it is located as low as possible, so it is installed at the same height as the propulsion guide coil 6 as shown in Fig. 1. .
In such a case, there is no problem while floating and propulsion is running in a non-contact state, but due to low speed running or the occurrence of an abnormal situation, the guide wheel 9 or the sliding shoe (not shown) will land on the vehicle side surface of the propulsion guide coil 6 and slide. The propulsion guide coil 6 will be damaged unless it has a structure that can withstand the sliding. For this reason, the propulsion guide coil 6 requires some kind of structural consideration, but no good idea has been proposed anywhere at present.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and there is no particular manufacturing problem in molding and manufacturing the propulsion guide ground coil, and even if the guide wheel or sliding shoe lands on the coil surface, the propulsion guide coil will be damaged. It is an object of the present invention to provide a propulsion guide coil device that does not cause sticking.

[Structure of the invention]

The present invention is a propulsion guide coil device arranged in a row on a side wall portion of a U-shaped cross section, and is provided with a propulsion guide coil body formed by molding with the coil inside, on the surface portion of the mold layer on the side facing the vehicle bogie. It is characterized by having a smooth reinforced strip-shaped sliding surface extending in the propulsion direction on which guide wheels or sliding shoes protruding from the bogie frame can roll or slide.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. Note that FIG. 2 is a perspective view of the propulsion guide coil device alone, and FIG. 3 is a sectional view of the propulsion guide coil device in a state where it is attached to the side wall portion of the U-shaped cross-sectional track. Here, reference numeral 10 in the figure denotes a propulsion and guide coil main body which is entirely molded with the coil 6A inside, and the mold layer 11 (insulating layer) of the main body 10 is in the shape of a substantially rectangular frame with the center hollowed out. A flange portion 12 having a quadrilateral brim shape is integrally formed on the front side thereof, that is, the side facing the bogie frame. A thick reinforced smooth strip-shaped sliding surface 13 is provided on the surface side of the flange portion 12 in a region where the guide wheels or sliding shoe protruding from the bogie frame come into contact with. Molded in one piece. This strip-shaped sliding surface 13 has a reinforced structure in which, for example, glass cloth or the like is arranged inside so as to have particularly wear resistance and strength. In the figure, reference numerals 14 and 15 are bolt seats for attaching the propulsion guide coil main body 10 to the side wall surface of the U-shaped cross-sectional track, and the upper bolt seats 14 and 14 are molded on the inner left and right rear surfaces of the main body 10. The coil 6A is provided integrally with the layer 11.
It is reinforced by ribs 16 and 17 so as to be able to withstand a force sufficient to receive the hoop force acting on the vehicle and to receive the reaction force of the force that propels and guides the vehicle. The center portion between the left and right bolt seats 14, 14 is an opening 18 that penetrates from the front to the back, and serves as a space for inserting the shim 20 into the back side when tightening the bolt 19. . On the other hand, the lower bolt seats 15, 15 are provided on the left and right sides of the lowermost end of the flange portion 12, avoiding the sliding surface 13, so that the bolts 21 can be attached thereto. Note that 22 is a shim that is inserted into the back surface from below when tightening the bolt 21. Reference numeral 23 denotes a cover mounting bolt hole, into which a non-metallic cover 24 is attached which closes the open surface of the flange portion 12 of the main body 10, excluding the strip-shaped sliding surface 13, and the surface of the flange portion 12 is made as smooth as possible. It is becoming more and more common. 25
is a space formed by leaving a rib 25A on the back side of the sliding surface 13, which is a space to save material since it does not require any strength greater than that to withstand the force received from the sliding shoe etc. Reference numeral 26 denotes a lead wire coming out from the coil 6A in the propulsion guide coil main body 10, and although it is drawn out downward as shown in the figure, it is fully conceivable that it may be drawn out from the top or the back side in relation to the track structure. Also, as shown in FIG. 3, the side wall 5A of the U-shaped cross-section track
The above-mentioned propulsion guide coil main body 10 is attached to the flange portion 1.
A recessed groove 27 into which the recessed groove 27 is fitted is formed, and screw seats 28 and 29 for bolt holes are embedded and fixed in the concrete at the upper and lower edges of the inner bottom surface of the recessed groove 27, respectively.

In the propulsion guide coil device of the present invention, when constructing the U-shaped cross-section track, the projection for the groove 27 and the screw seat 28 for the bolt hole are installed in the concrete formwork.
29 is attached, and after the concrete hardens for the U-shaped track, the formwork is removed with the screw seats 28 and 29 for the bolt holes remaining in the concrete, and the propulsion guide coil body 10 is placed in that state. The mold layer 11 is fitted into the groove 27 of the side wall 5A of the U-shaped cross-section track, and in this state, the opening 18 of the main body 10 or the lower side is inserted in order to adjust the above-mentioned construction error. sim 2
0 and 22 on the back side of the main body 10 and bolts 1
9 and 21 to attach and fix the propulsion guide coil main body 10 at an appropriate position in the groove 27 of the side wall 5A, and also to ensure that the flange portion 12 and the strip-like sliding surface 13 form a continuous surface with that of the adjacent propulsion guide coil main body. Join them as flush as possible so that they are aligned. At this time, if a gap occurs between the flange portion 12 and the side wall 5A surface, inject a foam sealant or a general sealant mortar, etc. to prevent the intrusion of rainwater and noise caused by the inflow of vehicle running wind. conduct. After the above-described installation work is completed, the central open surface of the flange portion 12 is closed by attaching the cover 24, so that the entire surface becomes a substantially smooth surface.

This completes the installation work on the side wall 5A of the U-shaped cross-section track, and the propulsion guide coil device now faces the superconducting magnet of the vehicle bogie frame and functions to provide a propulsion guide force in the same way as conventional devices. ,
As a result, the vehicle travels at high speed, and the running wheels and guide wheels of the vehicle are retracted and do not contact the track surface at all during normal high speed travel. By the way, when the vehicle is running at low speed or when a problem occurs with the superconducting electromagnet or other equipment that plays an important role in running, the guide wheels or sliding shoes protruding from the bogie frame can be removed from the mold layer of the main body 10 of this device. 12 comes into contact with the smooth reinforced strip-shaped sliding surface 13 and rolls or slides. In particular, if one of the left and right superconducting electromagnets suddenly quenches during high-speed running, the guide wheels will remain retracted and the sliding shoe will suddenly hit the sliding surface 13 directly and slide at high speed. Begins to move. On the other hand, the sliding surface 13 is held integrally with the mold layer 11 having the ribs 25A and the flange part 12 from the back side, has a reinforcing member such as glass cloth arranged inside, and is thick enough to protrude from the flange part 12. Because it is made of solid wood, it is strong enough to withstand not only the rolling of the guide wheels but also the strong impact of sudden sliding shoes, and the guide wheels or sliding shoes can be easily used without damage. The mold layer 11 of the main body 10 is prevented from being damaged by rolling or sliding smoothly. In addition, according to the propulsion guide coil device having such a configuration, the surface side band-shaped sliding surfaces 13 of the respective bodies 10 arranged in the traveling direction are arranged in a polygonal line in the bent track section, but in this type of floating vehicle, the radius of the curve is extremely large. Because it is large, it becomes a band-like continuous planar state that cannot be recognized as a polygonal line.

In addition, the open surface of the flange portion 12 of the propulsion guide coil body 10 is closed by the cover 24 to hide the internal uneven structure and create a smooth surface structure, so that the vehicle can move around the propulsive guide coil body 10. It is possible to prevent the occurrence of turbulence in the boundary layer airflow that moves with the rolling stock, and it is possible to reduce noise and increase in running resistance, which can be expected to be effective in reducing noise and loss as a floating railway. Become.

In addition, since the propulsion and guide coil device is an electrical structure and issues with insulation and strength, it is thought that the lifespan will be shorter than the lifespan of the track structure, but even if the electrical insulation deteriorates, it can be easily replaced individually, so it can be used for track maintenance. It is also a very advantageous device.

4 and 5 show a modification of the present invention, in which the propulsion guide coil main body 10 is exactly the same as the embodiment shown in FIGS. 2 and 3, but the strip-shaped sliding surface 13 is It is constructed by attaching a plate material 30, such as Teflon, which has a low coefficient of friction and excellent wear resistance. That is, when the main body 10 is molded, protrusions 31 and 32 are formed on the surface of the flange portion 12 above and below the sliding surface forming portion, and the grooves 3
3, a plurality of dowels 34 are provided protruding from the bottom surface of the dovetail groove 33, and the plate material 30 is fitted into the dovetail groove 33 so as to engage with each dowel 34, thereby forming a band-like shape. It constitutes a sliding surface 13. With this, there is no problem even if the sliding shoes or wheels on the vehicle side slide or roll against each other, and it is advantageous in that it is more durable.

〔Effect of the invention〕

As described in detail above, the present invention is provided with a smooth reinforced band-shaped sliding surface on the surface side of the molded propulsion guide coil main body on which the guide wheel or sliding shoe protruding from the vehicle bogie rolls or slides. Even if the sliding shoe rolls or slides, the propulsion guide coil main body is reliably protected, and the structure is extremely convenient for a propulsion guide coil device with a U-shaped cross-section track.

[Brief explanation of the drawing]

Fig. 1 is a schematic sectional view showing the general structure of a superconducting magnetically levitated vehicle and a U-shaped cross-section track, Fig. 2 is a perspective view of the propulsion and guide coil device of the present invention with the cover removed, and Fig. 3 1 is a sectional view of the device of the same embodiment attached to a track side wall, and FIGS. 4 and 5 are a perspective view and an enlarged sectional view of a main part showing a modification of the invention. 1... Car body, 2... Superconducting electromagnet, 3... Air spring, 4... Bogie frame, 5... U-shaped cross-section track, 5
A... Side wall, 5B... Bottom wall, 6, 6A... Propulsion guide coil, 7... Levitation coil, 8... Running wheel,
9... Guide wheel, 10... Propulsion guide coil body,
11...Mold layer, 12...Flange part, 13
...Band-shaped sliding surface, 14,15...Bolt catch, 1
6, 17, 25A...Rib, 18...Opening, 1
9, 21... Bolt, 20, 22... Shim, 23
...Mounting bolt hole, 24...Cover, 25...Space, 26...Lead wire, 27...Concave groove, 28,
29...Screw seat for bolt hole, 30...Plate material, 3
1, 32... protrusion, 33... dovetail groove, 34... dowel.

Claims (1)

[Scope of Claims] 1 Superconducting magnets are arranged in rows in the traveling direction on opposite side wall surfaces of a U-shaped cross-section track on which a vehicle of a superconducting magnetically levitated vehicle travels by levitation, and are opposed to superconducting magnets on the bogie side of the vehicle. In a propulsion guide coil device for a superconducting magnetically levitated vehicle that provides a propulsion guide force, the bogie platform is attached to the surface portion of the mold layer of the propulsion guide coil main body, which is formed by molding with the coil contained therein, on the side facing the vehicle bogie. 1. A propulsion guide coil device for a superconducting magnetic levitation vehicle, characterized in that a smooth reinforced strip-shaped sliding surface on which a guide wheel or sliding shoe protruding from a frame rolls or slides is provided in the propulsion direction. 2. The propulsion and guide coil device for a superconducting magnetic levitation vehicle according to claim 1, wherein the strip-shaped sliding surface is constructed by attaching a plate material having a small coefficient of friction and excellent wear resistance. 3. A propulsion guide coil device for a superconducting magnetically levitated vehicle according to claim 1 or 2, wherein the propulsion guide coil body is fitted in a groove formed in a side wall surface of the track. . 4. The superconductor according to claim 3, wherein the propulsion guide coil body has a substantially rectangular frame shape and has a removable non-metallic cover on the open surface excluding the front side strip sliding surface. Propulsion guide coil device for magnetic levitation vehicles.