JPS6221901A - Track structure of attraction type magnetic float vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is applied to the track structure of a suction type magnetic levitation vehicle, in particular, the lower surface of the rail is used for levitation, and at the same time, the upper surface of the rail is used for the propulsion linear motor. This invention relates to a track structure of a magnetically levitated vehicle that also serves as a secondary reaction plate.

[Prior art and its issues]

The track of a suction type magnetically levitated vehicle consists of sleepers 3 installed horizontally on top of one or two parallel track girders 2, as shown in FIGS. A rail 4.4 is supported at the end of the sleeper 3;
A linear motor 6, a floating magnet 7, and a skid 8.9 of a module 5, which corresponds to a conventional train bogie, are arranged so as to sandwich the module 4 from above and below. 10 is a gap sensor, and 11 is a reaction plate.

By the way, in the trajectory of the conventional suction type magnetic levitation vehicle,
The gaps between the Lini motor 6 and the floating magnets 7 and the rails 4 are set to constant values so that they do not come into contact at high speeds, so a generous gap size is provided during low speed travel.

The results of actual driving experiments using several types of vehicles show that at speeds over 300km/h, a clearance of approximately 87rL/TrL is required, but at speeds below 100KJR, a gap of approximately 4m/m is sufficient. found.

However, if the above-mentioned gap is wide, a large amount of electric power is required to prevent the levitation magnet 7 from generating the same buoyancy force, and in particular, an extremely large amount of electric power is required to levitate the vehicle 1 from a stopped state such as a station building. will be required. On the other hand, in the case of a linear motor as well, when the gap becomes wide, the power factor decreases and the efficiency deteriorates, so there is a problem in that a large amount of electric power is still required to generate the necessary thrust.

All of the above causes heat generation in the floating magnet and near motor, and in order to eliminate this, a special cold IA is used.
Although it has been considered to reduce the amount of heat generated by installing devices or increasing the size of the equipment, all of these methods increase the weight of the vehicle, creating a vicious cycle of creating new sources of heat generation.
This is a major problem that has implications for the establishment of the entire suction type magnetic levitation vehicle system.

[Purpose of the invention]

The present invention focuses on the problems of the above-mentioned prior art and has been made with the aim of improving them, minimizing power consumption and solving various problems associated with heat generation! The present invention provides a track structure for a suction type magnetic levitation vehicle that can be chilled.

[Summary of the invention]

In order to achieve the above object, in the track structure according to the present invention, the station building is installed on the track of the attraction type magnetic levitation vehicle in which the left and right levitation rails, which are the opposite sides of the attraction type magnetic levitation magnet, are also used as reaction plates of the linear motor. By making the rails thicker in low-speed travel sections where low-speed travel is expected, such as near areas, sharp curves, and steep slopes,
This system is characterized by automatically narrowing the gap between the levitation magnet, the linear motor, and the skid and rail.

[Embodiments of the invention]

The present invention will be described below with reference to the embodiments shown in FIGS. 1 to 5, using the same reference numerals for parts common to those in FIGS. 6 to 9.

FIG. 1 shows an example of a part of the track according to the present invention, in which sections 13 for braking, landing, ascent, and acceleration before and after the station building 12, sections for sharp curves 14, and steep slopes 15 are hatched. This is an indication.

Figure 2 illustrates a partial cross-section of the transition point from the high-speed section without hatching to the low-speed section with hatching in Figure 1, and shows how the rail changes in the present invention. It shows.

FIG. 3 shows the differences between the cross-sectional shape of the low-speed rail 4' according to the present invention and the cross-sectional shape of the conventional high-speed rail 4. 16 and the thickened part 17.1 of the magnetic suction flange
7.

Figures 4 and 5 show cross sections Δ-A and B-B in Figure 2, respectively. Figure 4 shows the high-speed rail 4, and Figure 5 shows the low-speed rail 4' and various parts of the module 5. It shows the changing state of the gap. In other words, the sensor girdle 18 of the gear sensor +f10 is controlled so as not to change in any case, but the skid gap 19, linear motor gap 20, and magnet gear V lug 21 are each controlled to 19.
'.

As shown by 20' and 21', it varies narrowly.

〔Effect of the invention〕

As explained above, the track structure of the magnetically levitated vehicle according to the present invention has the following features: The rails are made thicker in low-speed travel sections where low-speed travel is expected, such as near station buildings, sharp curves, and steep slopes, so that the gaps between the floating magnet, linear motor, and skids and the rails are automatically narrowed. Therefore, the electric power required for vehicle levitation, landing, acceleration and deceleration in low-speed driving sections can be significantly reduced, and as a result, the amount of heat generated by heat generation is reduced, eliminating the need for a special cooling 741 device, and the vehicle Increase in weight is also avoided, and the conventional heat generation is cooled down.
This will help break the vicious cycle in which the number of vehicle groups increases due to the increase in the number of vehicles installed, which increases power consumption, which in turn increases the amount of heat generated. The bottlenecks of magnetic levitation vehicle systems can be completely eliminated. Furthermore, in the present invention,
Since no special equipment is required just by changing the wall thickness of the rail, various effects can be obtained, such as being easy to implement and not increasing the vehicle's heavy chain at all.

[Brief explanation of drawings]

FIG. 1 is a schematic plan view showing an embodiment of the track structure of a suction type magnetically levitated vehicle according to the present invention, and FIG.
]I side view, FIG. 3 is a sectional view of the low-speed rail according to the present invention, FIGS. 4 and 5 are sectional views taken along lines 8-A and BB in FIG. A side view showing an example of the target suction type magnetic levitation vehicle, Fig. 7 is a sectional view taken along the line ■-■ of Fig. 6, Fig. 8 is a sectional view of one module, and Fig. 9 is a side view of one module. It is. 1... Vehicle, 2... Track girder, 3... Sleeper, 4...
・High-speed rail, 4'...Low-speed rail, 5...Module, 6...Rini! Motor, 7... Levitation magnet, 8.9... Skid, 10... Gap sensor, 11... Reaction plate, 12... Station building, 13... Braking/landing/levitation/acceleration section, 14...
Sharp curve deceleration section, 15... Steep slope section, 16... Gap sensor scanning surface thickening section, 17... Levitating magnet suction flange increasing η section, 18... Sensor 1! Whelk, 1
9.19'...Skid gap, 20.20'.
...Linear motor gap, 21.21' ...Magnet gap.

Claims (1)

[Claims] On the tracks of attraction magnetic levitation vehicles, where the left and right levitation rails, which are the opposite sides of the attraction magnetic levitation magnet, also serve as reaction plates for the linear motor, low-speed running is expected in areas such as near station buildings, sharp curves, and steep slopes. An attraction type magnetic levitation vehicle characterized in that the gap between the levitation magnet, the linear motor, the skid, and the rail is automatically narrowed in these sections by making the rail thick in the low-speed traveling section. Orbital structure.