JPH0234818B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a magnetic belt conveyor unit ( The circumferential speed of the magnetic belt is predetermined for each magnetic belt conveyor unit), but in the acceleration section along the traveling path, the circumferential speed changes from the lowest to the highest.
A constantly excited magnet attached to the bottom of the vehicle is placed on the magnetic belt of the magnetic belt conveyor unit in the reverse order in the deceleration section and in the same speed order in the constant speed section. At the station, the cars are stopped for a predetermined time and then started, or they are decelerated and run at a low constant speed in a connected manner at the station for a predetermined time, and the cars are moved relative to each other between parallel moving platforms of the same speed. Allowing passengers to get on and off at zero speed,
This relates to a magnetic continuous transport device that is then accelerated and towed one after another.

[Conventional technology]

Conventionally, in this type of magnetic continuous transportation system, it is easy to obtain a predetermined magnetic attraction force by changing the number of windings of the excitation current magnet yoke, and the presence or absence of a power load on the vehicle electromagnet is detected as a single signal, and the ground side Electromagnets are used as the main source of power because they can control the on/off of driving power for a group of magnetic belt conveyor units, which are the driving devices, to form so-called train block sections on railways. Since this electromagnet needs to be constantly excited, current is collected from a conductor trolley separately provided along the running route to the vehicle.

[Problem to be solved by the invention]

When collecting current from a trolley to a vehicle, it is necessary to install a battery for the excitation power source of the electromagnet in the vehicle as a natural countermeasure against power outages. however,
In terms of safe operation, especially considering long-term power outages, the battery capacity loaded on the entire train set becomes large, which also has the disadvantage of significantly increasing the weight of the entire train set.

The present invention aims to overcome these drawbacks and provide a magnetic continuous transport device that can reduce or omit the battery capacity and weight of the entire vehicle formation.

[Means to solve the problem]

In order to achieve the above-mentioned problems, the magnetic continuous transportation device according to the present invention has a vehicle composition with a predetermined number of two or more vehicles, a predetermined acceleration/deceleration force, deceleration as a component of gravity when going up and down a slope, In order to compensate acceleration force and driving force on a flat area with a predetermined counter-wind speed force, a predetermined number of cars are constantly excited in one or more cars on the leading side and one or more cars on the rear side of one formation. Attach each electromagnet and
Permanent magnets are attached to the cars in the formation at locations where there are no electromagnets, and magnetic belt conveyor units are installed at intervals such that either the electromagnet of the lead car or the tail car of one formation is always attracted to the magnetic belt. This is a distributed arrangement of .

[Effect]

In the magnetic continuous transport device of the present invention, the electromagnet requires an excitation power supply battery in case the power supply stops, but the permanent magnet does not require an excitation power supply battery. This makes it possible to reduce or omit the capacity and weight of batteries for power outage protection for the entire train set, and when the power supply to the train stops, or when the electromagnet is demagnetized due to a problem with the electromagnet itself, at least a flat battery can be used instead of the electromagnet. It is possible to maintain constant speed running in sections, to maintain stopping in slope sections, and to ensure magnetic attraction force when demagnetizing the electromagnet by using permanent magnets.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

The drawing is a schematic diagram of a magnetic continuous transportation device according to an embodiment of the present invention, and in this embodiment, vehicle formation 1
is a three-car train, and the number of cars in one train is fixed if the number of cars in one train, that is, the mounting interval between the front end electromagnet and the rear end electromagnet, is determined.

Regarding the vehicle side, the leading vehicle 2 and the trailing vehicle 4 of this formation each have an electromagnet 2 at the bottom.
EM, 4EM are installed, and intermediate vehicle 3
A permanent magnet 3PM is attached to the. In this case, the electromagnet is capable of accelerating and decelerating at least in a flat section,
It should be attached to the front head of the leading vehicle 2 and the back head of the trailing vehicle 4 so that the acceleration/deceleration force can be constantly maintained, with the exception of uniform running force on slope sections. In other parts, in the event of sudden demagnetization of the electromagnet mentioned above (including cases where power supply is stopped or due to electromagnet inconvenience),
As described above, permanent magnets may be attached so as to maintain uniform running speed at least on flat areas and to maintain stopping power on slope sections.

Therefore, permanent magnets always have a magnetic attraction force, but in steady state when the electromagnet is excited, it is not necessary for acceleration/deceleration force or uniform running force, but for jerk fluctuations when a vehicle passes between magnetic belt conveyor units. It merely has the function of mitigation. For example, if there are two cars in a train set, and each car has two magnet attachment points, of the four magnets in total, the magnets at both ends of the train set are electromagnets, and the two middle places are permanent magnets. It is.

On the ground side, although not shown in detail, magnetic belt conveyor units MBCU1 and MBCU2, which are composed of a motor, a reduction mechanism, a drive wheel, an idler wheel, a magnetic belt, etc., are distributed at a predetermined interval l. It forms a magnetic belt conveyor line. This distance l is between the electromagnets 2EM and 4EM of either one of the vehicles 2 and 4 and the magnetic belt of the magnetic belt conveyor units MBCU1 and MBCU2.
The interval is determined so that MB1 and MB2 have an adsorption effect. It is assumed that the magnetic belt is provided with a soft magnetic material exposed on the side of the electromagnet's magnetic pole.

Therefore, the electromagnet 2 attached to each vehicle
EM and 4EM are configured with a capacity that can each independently tow vehicle formation unit 1.
In this embodiment, the traction force is several times greater than that in a normal case. In general, vehicle acceleration and deceleration are performed by the leading vehicle and the trailing vehicle, and the intermediate vehicle, which does not have an electromagnet, functions to reduce jerk fluctuations when continuously crossing constant velocity sections and acceleration sections. In the example, the permanent magnet 3PM of the intermediate vehicle 3 functions as described above. The traction or braking force is generally 20 to 25% of the electromagnetic acceleration/deceleration force.
That's about it. Such a traction force is caused by the permanent magnet 3
This can be easily obtained by using a suitable PM such as a ferrite magnet.

In addition, when the electromagnet is demagnetized due to a problem with the electromagnet itself other than a power outage, such as a break in the power supply line to the electromagnet or an excitation winding, the magnetic attraction force is large enough to exchange sufficient acceleration/deceleration force in place of the demagnetization. It would be desirable to install a strong permanent magnet that generates a double system. In particular, if each magnetic belt conveyor unit on the ground side is designed so that its rotation is stopped by a mechanical brake when the power supply to the magnetic belt conveyor unit is stopped, the power supply to the electromagnet on the vehicle side is Even if the vehicle unit stops, the permanent magnet magnetically attracts the magnetic belt with sufficient force, so the magnetic brake works between the magnetic belt, which has stopped rotating due to the mechanical brake, and quickly and reliably stops the vehicle unit. be able to.

In the above-mentioned embodiment, the number of vehicles in the vehicle unit is three, and the permanent magnets are provided only in the intermediate vehicles, but the present invention is not limited to this number, and the arrangement of the permanent magnets may also be modified. The same is true. Any vehicle formation of two or more vehicles can be used. However, once the number of vehicles in one formation is determined, it must be fixed because of the arrangement spacing of the magnetic belt conveyor units as described above. In addition, the number of front and rear vehicles to which electromagnets are attached must be such that the magnetic adsorption force and magnetic sliding friction force necessary for acceleration and deceleration as a single formation can be obtained. . From this, the number of vehicles depends on the magnetic attraction force and number of individual electromagnets and permanent magnets, as well as the magnetic circuit formed between the magnetic belt conveyor unit and the electromagnets that attract it, the spacing, etc. Just choose. Conversely, the magnet device (electromagnet and permanent magnet) per vehicle and the number of vehicles per train may be determined from the magnetic circuit (magnetic saturation).

〔Effect of the invention〕

As is clear from the above description, the magnetic continuous transportation device according to the present invention has a permanent magnet attached to the parts of the train set where there are no electromagnets, thereby reducing the battery capacity to the minimum necessary for on-board lighting, air conditioning, etc. during power outages. This can be reduced or omitted to the limit, and the vehicle weight of the train set can be reduced accordingly. In addition, in this type of magnetic continuous transportation device, a mechanical brake is generally applied to the magnetic belt conveyor unit on the ground side when the vehicle is stopped. Therefore, in the case of the present invention, the permanent magnet is magnetically attracted to this magnetic belt. At the very least, it can provide uniform running force on flat sections and stop vehicles on slope sections, making it possible to realize an energy-saving and versatile transportation device.

[Brief explanation of drawings]

The drawing is a schematic diagram of a magnetic continuous transport device according to an embodiment of the present invention. 1... Formation vehicle unit, 2... Leading vehicle, 3
...Middle vehicle, 4...Tear vehicle, 2EM, 4EM
...Electromagnet, 3PM...Permanent magnet, MB1, MB
2...Magnetic belt, MBCU1, MBCU2...Magnetic belt conveyor unit.

Claims (1)

[Claims] 1. A plurality of magnetic belt conveyor units equipped with rotating magnetic belts are arranged along a running path,
In a magnet-type continuous transportation device in which a vehicle having a magnet device is pulled by a magnetic attraction force between it and a magnetic belt and runs continuously, the vehicle formation is a predetermined number of vehicles of 2 or more, and one formation A predetermined number of constantly excited electromagnets are attached to at least one vehicle on the front side and one or more vehicles on the rear side of the vehicle, and permanent magnets are attached at desired locations where there are no electromagnets. What is claimed is: 1. A magnetic continuous transport device characterized in that magnetic belt conveyor units are distributed at intervals such that either one of the electromagnets at both ends of the formation is attracted to the magnetic belt.