JPS5820201B2 - Jikikido Souchino Kidoubunki System - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a track branching system for a magnetic track device, and more particularly to a track branching system for a magnetic track device of attraction control type that performs suction levitation control using a normal conducting electromagnet and propulsion control using a linear morph.

Conventional attraction control type magnetic track devices are generally provided with a group of electromagnets for controlling the vehicle's levitation and a group of electromagnets for guiding control. A rail and a guide rail are provided.

The electromagnet group is disposed at the bottom of the vehicle, and each of the rails is fixedly supported on a track.

In this attraction-controlled magnetic track device, if one set of floating rails and one guide rail are installed on each side of the track, a total of four ferromagnetic rails will be required.

Furthermore, five track rails are required, including the action rail that uses the linear motor for propulsion control.

Each of these five track rails must be laid accurately over the entire length of the track, and compared to conventional wheel-supported track equipment, the construction cost is significantly higher and the branching structure is more complicated, making it difficult to put it into practical use. encounter difficulties.

Therefore, the main object of the present invention is to provide a track branching system for a magnetic track device which has an extremely simple branching structure and is economically advantageous, except for the above-mentioned particular problems.

In summary, this invention is a magnetic track device that provides floating blades and guiding force using two sets of E-shaped track rails and two rows of C-shaped magnets, and the two rows of C-shaped magnets are arranged according to the traveling direction. This is a branching system that selectively controls magnets.

The above objects and other objects and features of the invention will become more apparent from the following detailed description with reference to the drawings.

FIG. 1 is a schematic structural diagram of a magnetic orbital device in which the present invention can be advantageously implemented.

In this structure, an E-shaped track rail 4.5 made of a ferromagnetic material is placed at the upper end of the track-side support members 3, 3 provided at both ends of the track in the width direction, with its concave surface facing downward. Fixedly supported in a horizontal position.

The vehicle side support member 2, which is surrounded by the E-shaped track rails 4 and 5 at its sides and is provided on the lower surface of the vehicle 1, has a pole surface below the E-shaped track rails 4 and 5. Two rows on one side (four rows on both sides) in the length direction of the vehicle 1, facing each other with an interval corresponding to the pole surface (concave surface) of the E-type track rails 4 and 5.
C-shaped magnets 6, 7, 8, and 9 are fixedly supported.

Therefore, the vehicle 1 (vehicle side support member 2) has the electromagnet 6
, 7, 8.9.

The lower surface of the vehicle 1 further includes the E-shaped track rails 4 and 5.
is used as a reaction plate (secondary conductor), and the primary coils 10 and 11 of the near motor are connected to the E-type track rail 4,
They are fixedly supported with a spacing of 5 flat surfaces.

In operation, when traveling in a normal straight line, the vehicle 1 has a vertical attraction force acting on the E-shaped track rail 4 and the electromagnets 6 and 7, and a vertical attraction force acting on the E-shaped track rail 5 and the electromagnets 8 and 9. The levitation is controlled by the suction force.

Further, when the vehicle 1 is displaced in the horizontal direction, the electromagnet 6
, 7 and 8, 9, a horizontal guiding force in a direction opposite to the direction of displacement acts on each of them together with the floating blade.

That is, E-type track rails 4, 5 and electromagnets 6, 7, 8,
A restoring guiding force acts to increase the effective area of the pole face corresponding to 9 and make it easier for the magnetic flux to pass through.

Furthermore, the propulsion control of the vehicle 1 is carried out by a primary coil 10 that constitutes an induction linear motor in cooperation with the E-type track rails 4 and 5.
11 is achieved by applying an excitation current so as to generate an alternating magnetic field.

In addition, the primary coils 10 and 11 are connected to the E-type track rails 4 and 5.
Although shown above, it could also be arranged below, similar to the electromagnet 67.8.9.

FIG. 2 is a schematic bottom view of an E-shaped track rail showing an embodiment of the present invention.

In the construction, FIG. 2 shows only one E-shaped track rail 4 for simplicity, but it should be understood that the same applies to the other E-shaped track rail 5.

The E-shaped track rail 4 is bifurcated at a branch point, one track rail including pole faces 4n, 4y, 4w and the other track rail including pole faces 4x, 4y, 4z.

Point detection sensors 12, 12 and 13, 13 and 14, 14 are arranged on this track and therefore at each branch of the E-shaped track rail 4, corresponding to the concave portions of the E-shaped track rail 4. .

Figure 3 is a sectional view of each part in Figure 2, and Figure 3a
shows a sectional view taken along line IA-MA' in Fig. 2;
The figure shows a sectional view taken along line IB-IB' in FIG.
3C shows a sectional view taken along line IC-IC' in FIG. 2, and FIG. 3d shows a sectional view taken along line ID-ID' in FIG.

Point detection sensors 12, 12 and 13, 13 and 1
At each point 4, 14, the E-type track rail 4
As shown in Figure a, each is formed with a normal pole face width.

Further, at the starting end of the branching portion, that is, at the line IB-IB', as shown in FIG. 3, the middle rail of the E-shaped track rail 4 is formed broadly by 4v and 4y.

The operation of the above-mentioned particular configuration will be explained below with reference to FIGS. 1 to 3.

In the operation, let us assume that the vehicle 1 is approaching from the direction of the arrow in FIG. 2 (at a slower speed).

First, when the vehicle travels straight, that is, the rail pole surfaces 4u, 4
Let us consider the case where the train moves in the direction of the E-shaped track rail 4 consisting of v and 4w.

When the point detection sensors 12, 12 detect that the vehicle has approached a branch, this detection signal is transmitted to an electromagnet control device (not shown) provided in the vehicle.

In response to the detection signal, the electromagnet control device controls the electromagnet 6 (and the other E-shaped track rail 5 in FIG. 3a).
Increase the excitation current of the electromagnet 8) corresponding to the electromagnet 7).
(and the electromagnet 9 corresponding to the other E-type track rail 5)
Make the excitation current weaker (or zero).

As mentioned above, when the electromagnets 6, 8, 7, and 9 are individually controlled, the attraction force by the electromagnets 7 and 9 becomes weaker (or becomes zero), and only the attraction force by the electromagnets 6 and 8 acts more strongly. do.

Therefore, the vehicle 1
.

It moves straight while maintaining its floating state due to the attractive force acting on the 4V electromagnet 6.

Further, the horizontal guiding force at this time is similarly obtained by the rail pole surfaces 4u, 4v of the E-shaped track rail 4 and the electromagnet 6.

Furthermore, the excitation of the electromagnets 7, 9 is weakened or made zero, so that the vehicle can move to the branch E including the rail pole faces 4x, 4y, 4z.
There is no risk of being guided in the direction of the shaped track rail.

When the vehicle turns right, that is, the rail pole surface 4x.

Let us consider the case where the train moves in the direction of the E-shaped track rail 4 consisting of 4y and 4z.

When the point detection sensors 12, 12 detect that the vehicle has approached a branch, this detection signal is transmitted to an electromagnet control device (not shown) provided in the vehicle.

The electromagnet control device receives the detection signal and controls the electromagnet 7 (and the other E-shaped track rail 5 in FIG. 3a).
Increase the excitation current of the electromagnet 9) corresponding to the electromagnet 6).
(and the electromagnet 8 corresponding to the other E-type track rail 5)
Make the excitation current weaker (or zero).

As mentioned above, when the electromagnets 6, 8, 7, and 9 are individually controlled, the attraction force by the electromagnets 6 and 8 becomes weaker (or becomes zero), and only the attraction force by the electromagnets 7 and 9 acts more strongly. do.

Therefore, the vehicle 1
.

The robot turns right while maintaining the floating state due to the attractive force acting on the electromagnet 4z and the electromagnet 7.

Further, the horizontal guiding force at this time is similarly obtained by the rail pole surfaces 4y, 4z of the E-shaped track rail 4 and the electromagnet 7.

Furthermore, since the excitation of the electromagnets 6 and 8 is weakened or made zero, the vehicle moves straight along the rail pole surfaces 4u, 4v, and 4w.
There is no risk of being guided in the direction of the shaped track rail 4.

At this time, when the vehicle reaches the point of line IB-IB', the rail pole surface 4z (and 5z) of the E-shaped track rail 4, the magnetic pole surface 7a of the electromagnet 7 (and the magnetic pole surface 9a of the electromagnet 9, although not shown) ) provides a horizontal guiding force to the right.

Therefore, the vehicle branches (turns right) while maintaining its floating state.
It is possible.

When the vehicle passes through the branch, the point detection sensor 13.13
Alternatively, a detection signal can be obtained by 14,14.

Therefore, the electromagnet control device described above has the electromagnets 6, 7, 8.
, 9 are returned to their normal state.

That is, equal excitation currents are applied to the electromagnets 6, 7, and 8.9, respectively.

In this way, after passing the branch, the vehicle can quickly travel at high speed.

In addition, when passing through the above-mentioned branch points, in order to weaken the excitation of one electromagnet or make it zero, if there is not enough floating blades, the separately provided standby electromagnet (not shown) is also excited at the same time. All you have to do is control it.

That is, the preliminary electromagnet attached to the electromagnet that is selectively and strongly excited is excited only when passing through this branch.

Such a backup electromagnet can not only be used as an emergency electromagnet in case of failure of the main electromagnets 6, 7, 8, 9, but also as a supplementary eddy current brake.

Furthermore, in order to solve the problem of insufficient levitation force, the following may be done.

That is, it is sufficient to temporarily reduce the gap between the rail pole face of the E-shaped track rail 4.5 and the pole face of the electromagnets 6, 7, 8, and 9.

This is because the attractive force of the electromagnet that becomes the floating blade is 2 times the excitation current.
It is known that the gap length is proportional to the square of the air gap length and inversely proportional to the square of the air gap length. Therefore, if the air gap length is temporarily controlled to a small value at the trajectory branch and the excitation current of the electromagnet is increased, sufficient floating blades can be generated. is obtained.

Further, at this time, since the vehicle speed at the branching portion is controlled to be relatively slow, the gap length may be small.

Furthermore, since the track length of the branch portion is usually short, even if the excitation current of the electromagnet is temporarily increased, the heat capacity of the electromagnetic coil can be satisfied with the short-time rating.

In addition, in addition to such a non-contact electromagnetic branching structure, a mechanical branching system, such as a guide roller engaging in a recess on the traveling direction side of the E-shaped track rail, may be used in combination to increase safety. good.

As described above, according to the present invention, since it is a magnetic track device that performs levitation control and guidance control only by the E-type track rail and the corresponding electromagnets, it is possible to perform branching by only controlling the individual and selective excitation of the electromagnets. possible trajectory branching systems are obtained.

Furthermore, even when passing through a branch, non-contact branching can be easily achieved while maintaining the floating state.

That is, a track branching system for a magnetic track device with a simple branching structure and economically advantageous can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a schematic structural diagram of a magnetic orbit device in which the present invention is implemented. FIG. 2 is a schematic bottom view of an E-shaped track rail showing an embodiment of the present invention. Figure 3 is a sectional view of each part in Figure 2, and Figure 3a
3 shows a sectional view taken along line IIA-mA' in FIG. 2, FIG. 3 shows a sectional view taken along line IB-113' in FIG. 2, and FIG. 3d shows a sectional view along the line ID--ID' of FIG. 2. FIG. In the figures, the same reference numerals indicate the same or equivalent parts, 1 is the vehicle, 2 is the vehicle side support member, 3 is the track side support member, 4 and 5 are the E-shaped track rails, and 6°7.8 and 9 are the electromagnets. , 10, 11 are linear morph primary coils, 12.13.
14 is a point detection sensor.

Claims (1)

[Scope of Claims] 1. An E-shaped track rail made of a ferromagnetic material and having three protruding pole faces; and an E-shaped track rail provided on the track so that the protruding pole faces face downward. a track-side support member that supports in a horizontal state; at least two rows of C-shaped magnets; and a vehicle is provided with the two rows of C-shaped magnets, the pole faces of which correspond to the respective pole faces of the E-shaped track rail. a track branching system for a magnetic track apparatus, comprising: vehicle side support members supported so as to face each other with a gap; means for detecting that a vehicle has reached a branching point of the E-shaped track rail; means for generating a difference between the excitation of one row of the two rows of C-shaped magnets and the excitation of the other row of the two rows of C-shaped magnets in response to the output of the vehicle arrival detection means according to the desired traveling direction; A magnetic track device track branching system that guides vehicles in the desired direction of travel.