JPH07143614A - Magnetic levitation type truck - Google Patents

Abstract

PURPOSE:To freely move in a wide range without laying a magnetic rail at a road surface side by providing a luggage carrier for loading an article to be conveyed, and installing a driver for moving while forming the rail by levitating it by a magnetic repelling force. CONSTITUTION:The magnetic levitation type truck comprises a luggage carrier 1 for loading an article to be conveyed, and a driver 2 for levitating it by a magnetic repelling force to move while forming a rail by itself. Further, a control unit 3 is mounted at a lower part of the carrier 1, and a supporting plate 4 is fixed under the lower part. A pair of caterpillar belts 5 are disposed at both sides of the plate 4. Drive wheels 6 and a guide wheel 7 are installed at front and rear sides. Two sets of coil magnets 8 are provided oppositely to the belts 5 of a round side. Thus, the unit 3 controls a coil current supplied to a coil magnet 8 and controls the rotation of the wheels 6 engaged with the inner peripheral teeth of the belts 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic levitation carriage for transporting an object loaded on a cargo bed while levitating the cargo bed by a magnetic repulsive force.

[0002]

2. Description of the Related Art Conventionally, as a magnetic levitation type vehicle of this type, a magnetic track composed of rails or the like is previously laid on a road surface (including a floor surface), and a magnetic field having a polarity different from that of a magnetic field generated from this magnetic track. It is known that a magnetic field generating unit for generating a magnetic field is mounted on the dolly side to move on the magnetic track while levitating the carrier by the magnetic repulsive force generated between the magnetic track and the dolly.

[0003]

However, in the conventional magnetic levitation bogie, since it can move only on the magnetic track laid on the road surface, once the magnetic track is laid, the moving route of the bogie is restricted. I will end up. Further, if the magnetic track is changed after installation, the cost for that is enormous.

The present invention has been made in order to solve the above problems, and it is not necessary to lay a magnetic track on the road surface side.
It is an object of the present invention to provide a magnetic levitation truck that can freely move in a wide range.

[0005]

The present invention has been made in order to achieve the above-mentioned object, and a carrier for loading articles to be conveyed, and the carrier is levitated by a magnetic repulsive force so that the track can be moved by itself. It is a magnetic levitation trolley provided with the drive part which moves while forming.

[0006]

In the magnetically levitated trolley of the present invention, the drive unit forms the track by itself and moves the cargo bed by floating, so that it is not necessary to lay a magnetic track on the road surface side, and the movement path is restricted. Nor.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a side view showing an embodiment of a magnetic levitation carriage according to the present invention, and FIG. 2 is a front view thereof. As shown in the figure, the magnetic levitation truck according to the present embodiment includes a loading platform 1 for loading an article to be transported, and a drive unit 2 that floats the loading platform 1 by magnetic repulsion and moves while forming a track by itself. Is equipped with.

More specifically, the drive unit 2 is provided with a control unit 3 attached to the lower portion of the luggage carrier 1, support plates 4 fixed below the control unit 3, and both sides of the support plate 4. A pair of caterpillar (registered trademark) belts 5, drive wheels 6 and guide wheels 7 arranged in front of and behind each of the caterpillar belts 5, and two sets of coil magnets provided to face the ground-side caterpillar belt 5. 8 and.

The control unit 3 controls the coil current supplied to the coil magnet 8 and also controls the rotating operation of the drive wheels 6 engaged with the inner peripheral teeth (not shown) of the caterpillar belt 5. .

On the other hand, as shown in FIG. 3, a plurality of magnetic units 9 are embedded inside the caterpillar belt 5, and each magnetic unit 9 includes a box-shaped magnetic shield plate 10 and this magnetic shield. It is composed of a plurality of bar magnets 11 housed in the plate 10. The bar magnets 11 are arranged such that the N pole is located on the inner circumference side of the caterpillar belt 5, that is, the opening side of the magnetic shield plate 10, and the S pole is located on the outer circumference side of the caterpillar belt 5. .
By the way, in this embodiment, the magnetic unit 9 composed of the magnetic shield plate 10 and the plurality of bar magnets 11 is formed into a plate shape with rubber or resin which is the material of the caterpillar belt 5, and these are joined one by one. , Endless caterpillar belt 5
Configured.

Further, as shown in FIG. 4, each coil magnet 8 has a caterpillar belt 5 grounded on a road surface G.
The control unit 3 supplies a coil current to generate a magnetic field that repels the magnetic field of the magnetic unit 9 embedded in the caterpillar belt 5.

Next, the operation of the magnetic levitation bogie having the above structure will be described. First, when the carriage is stopped, the support rod 12 (see FIG. 2) extending below the support plate 4 descends to a position where it comes into contact with the road surface G, thereby supporting the carriage load. On the other hand, when moving the carriage, the coil current is supplied from the control unit 3 to the coil magnet 8 and then the support rod 12 is raised. As a result, a magnetic repulsive force is generated between the caterpillar belt 5 and the coil magnet 8, and the luggage carrier 1 is floated by the magnetic repulsive force. Then, the control unit 3
Rotates the individual drive wheels 6 and drives the caterpillar belt 5 engaged with each drive wheel 6 in the R direction in FIG.
As a result, the drive unit 2 starts moving in the X direction in FIG. 1 while forming the track by itself while the cargo bed 1 is levitated by the magnetic repulsion force.

At this time, the caterpillar belt 5 is driven while being guided by the drive wheels 6 and the guide wheels 7, and
A constant tension is maintained by the swing motion of the drive wheel 6 around the support point P (see FIG. 1). Further, the control unit 3 appropriately controls the magnitude of the coil current according to the load of the truck 1 so that a constant gap is always secured between the caterpillar belt 5 and the coil magnet 8.

Here, the moving speed of the carriage is adjusted by the control unit 3 controlling the rotational speed of the drive wheels 6.
The control unit 3 adjusts the rotational speed of each drive wheel 6 to change the drive amount of the left and right caterpillar belts 5 to change the direction of the carriage. Further, when the carriage is moved backward, the control unit 3 reverses the driving direction of the left and right caterpillar belts 5. That is, the control unit 3 appropriately controls the rotating operation of the individual drive wheels 6, so that the entire carriage can freely move on the road surface G. When the carriage is stopped, the support rod 12 is lowered again to the position where it comes in contact with the road surface G, and then the coil power supply from the control unit 3 to the coil magnet 8 is cut off.

FIG. 5 is a view for explaining another embodiment of the drive unit, and here shows the structure of the caterpillar belt. In the illustrated example, the magnetic unit 13 embedded inside the caterpillar belt 5 is configured as follows. That is, a box-shaped magnetic shield plate 1 having one opening
4, a pair of magnets 15 having a chevron structure is stored,
Regarding the polarities of the respective magnets 15, the central protrusion is the N pole, and the protrusions on both sides thereof are the S poles.

On the other hand, as shown in FIG. 6, the structure of the coil magnet 16 also has a chevron structure corresponding to the shape of the magnet 13, and the coil current is supplied from a control unit (not shown) to the center. Is formed so as to show the N pole, and the projections on both sides show the S pole. The coil magnet 16 itself is arranged so as to face the caterpillar belt 5 grounded on the road surface G, and a magnetic field that repels the magnetic field of the magnetic unit 13 is generated by the supply of the coil current described above. By this, a loading platform (not shown) is floated.

[0017]

As described above, according to the present invention,
Since the drive unit forms the track by itself and moves the cargo bed while floating, it is not necessary to lay a magnetic track on the road surface as in the conventional case, and the entire carriage can be freely moved over a wide range. As a result, for example, when using a magnetic levitation trolley in a production plant or the like, when the layout of the process was changed, it was conventionally necessary to spend a huge amount of money to correct the magnetic track. According to this, it is possible to easily deal with the problem by only changing the setting data of the movement route in the drive unit.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a magnetic levitation carriage according to the present embodiment.

FIG. 2 is a front view showing an embodiment of the magnetic levitation carriage according to the present embodiment.

FIG. 3 is a diagram illustrating one component of a drive unit.

FIG. 4 is a diagram illustrating a magnetic repulsive force generating unit in a drive unit.

FIG. 5 is a diagram illustrating another embodiment of the drive unit.

FIG. 6 is a diagram illustrating another means for generating a magnetic repulsive force in the drive unit.

[Explanation of symbols]

 1 platform 2 drive

Claims (1)

[Claims] 1. A magnetic levitation trolley comprising: a loading platform for loading a transported object; and a drive unit that floats the loading platform by a magnetic repulsive force and moves while forming a track by itself. .