JPS6160365A - Method of changing speed of magnet type continuous transportsystem - 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] [Technical Field of the Invention] The present invention provides a system in which magnetic belt conveyor units having a predetermined unique rotational speed are arranged on the ground at predetermined intervals, and a vehicle is equipped with an electromagnet. The present invention relates to a method for accelerating and decelerating a magnetic continuous transport system (hereinafter abbreviated as CTM) that is pulled by following the rotation of a magnetic belt through friction due to the attraction force between an electromagnet and the magnetic belt of the conveyor unit.

[Conventional technology]

Conventionally, acceleration and deceleration of this type of CTM has been carried out by arranging two or two magnetic belt conveyors 14 with different rotational speeds at predetermined intervals, and when accelerating, the conveyor belts 14 with different rotational speeds are arranged sequentially at predetermined intervals. To something fast.

When decelerating, they were arranged from fastest to slowest. In this case, for safety reasons, the interval between the magnetic belt conveyor units is made shorter than the length of the train, so the train straddles two magnetic belts with different speeds. Therefore, when accelerating, when the train is accelerated by the fast magnetic belt conveyor unit at the front in the direction of travel, and when the rotating speed exceeds the rotational speed of the slow magnetic belt conveyor unit at the rear, the slow magnetic belt conveyor unit The high-speed magnetic belt conveyor unit receives driving force via the train, and rotates at a speed higher than the set speed. At this time, since an induction motor is used as the drive source of the magnetic belt conveyor unit, a braking force is generated in the slow magnetic belt conveyor unit, which cancels out the driving force of the magnetic belt conveyor unit. Therefore, the acceleration of the train will decrease.

Furthermore, as the VC1 train advances and the contact length of the slower magnetic belt conveyor unit with the magnetic belt becomes shorter, the static return force becomes smaller than the driving force of the faster magnetic belt conveyor unit, and the braking force is reduced from static friction to t! Since it changes to JJ friction, the fill power suddenly decreases.

As a result, the acceleration of the train increased rapidly, resulting in a worsening of ride comfort.

The above-mentioned problem during acceleration occurs in the same way as unnecessary acceleration force during deceleration, and the countermeasures have been different.

[Purpose of the invention]

The present invention has been made to solve the problems of the prior art described above.The present invention is a CT that does not generate unnecessary braking or accelerating force during acceleration or deceleration and enables smooth acceleration or deceleration.
This article provides a method for accelerating and decelerating M.

[Summary of the invention]

The CTM acceleration/deceleration method according to the present invention has the following features.

When the leading car of a fixed train in which cars are interconnected via connecting rods reaches the magnetic belt of the magnetic belt conveyor unit in front, the first car on the magnetic belt conveyor unit in the rear A force detector is installed in the connecting rod that connects the vehicle in front of the vehicle and the vehicle in front of it, and when the output of the detector exceeds a predetermined tensile or compressive force, the force of the vehicle behind the detector is It is characterized by cutting off the power supply to the electromagnet.

Therefore, when accelerating, until the first car of the train reaches the magnetic belt conveyor unit in front of it,
As the train advances as if being pushed out by the rear magnetic belt conveyor unit, a compressive force acts on the force detector. When the leading vehicle reaches the magnetic belt conveyor unit in front, the rotating speed of the magnetic belt conveyor unit is faster than that in the rear, so a large tensile force acts on the force detector. Based on the tensile force at this time, the power supply to the electromagnet of the vehicle located behind the force detector is cut off, so that the influence of the rear magnetic belt conveyor unit is eliminated.

In addition, when decelerating, the train moves forward while being pulled by the magnetic belt conveyor unit at the rear until the first car of the train reaches the magnetic belt conveyor unit at the front, so a tensile force is applied to the force detector. act.

Then, when the leading vehicle reaches the front magnetic belt conveyor unit, the rotating speed of the magnetic belt conveyor unit is slower than that of the rear one, so that a large pressure is exerted on the force sensor to save labor. Based on the compressive force at this time, the power supply to the electromagnet of the vehicle behind the force detector is cut off, so that the influence of the rear magnetic belt conveyor unit is eliminated.

Furthermore, in both cases of acceleration and deceleration, when the train leaves the magnetic belt at the rear, the tensile or compressive force becomes smaller as the train approaches the set speed of the magnetic belt conveyor unit at the front. This restarts power supply to the electromagnet.

[Embodiments of the invention]

Embodiments of the present invention will be described based on the drawings. FIG. 1 is a schematic diagram showing a CTMi that is the object of the present invention, and FIG. 2 is a block diagram of a control circuit for implementing a method according to an embodiment of the present invention.

In Figure 1, ←0. ←1) is a magnetic belt conveyor unit, and (1) is a train. Train (1) is vehicle f2
15゜(A).
9. (c).

The vessels are connected by connecting rods (c) and (c) in a fixed arrangement. Furthermore, electromagnets (21a), (22a), and (23a) are attached to the lower part of each vehicle (c), (a), and (e). In addition, the electromagnets (21a), (22
a).

Although not shown in (23a), there is a branch point of the power supply line.

Electric power is supplied via a contact wire and a current collector;
It shall be equipped with a switch that can be controlled to open and close. (C) is a force detector, which is attached to the connecting rod (C).

On the other hand, in Fig. 2, α9, 02 are variable resistors, 03
．． (The binding is a comparator, (to) is a pulse oscillator, ao is an AND circuit, 0 or 0 is a monostable multivibrator that can be retriggered, and (9) is a switch that switches between acceleration and deceleration.

? (K% The operation during acceleration will be explained with reference to FIGS. 1 and 2.

Magnetic belt conveyor unit (6), rotation speed of four ■1
0.1 is a dynamic relationship, and it is assumed that the tensile force is given a positive polarity and the compressive force is given a negative polarity.

The output of the force sensor (1) is applied to the input of the control circuit. The variable resistor (6) is set to a potential corresponding to a predetermined tensile force, and the variable resistor (6) is set to a potential corresponding to a predetermined compressive force. For this reason.

As the train progresses until the leading end of the vehicle Q1) reaches the magnetic belt of the magnetic belt conveyor unit (7), the vehicles (2), (A), and (A) are pushed and suspended by the magnetic belt conveyor unit α. As a result, a compressive force acts on the force sensor (a), and power continues to be supplied to the output of the comparator (6).

Next, when the electromagnet (21a) of the vehicle Q1) reaches the magnetic belt of the magnetic belt conveyor unit αQ, the electromagnet (
21&) is attracted to the maternal belt, and the heel vehicle η tries to move to the magnetic belt conveyor unit following the rotation of q. This time, frost) %o comes out, force detector (c)
A tensile force acts on IC, which is supplied to the input of the control circuit of FIG. 2 and compared with a set value by a comparator (G). If the output of the force detector (c) is lower than the set value, the comparator ■V
C shows the output.

-The pulse oscillator (9) sends out a clock signal that indicates the time interval at which force is to be detected. For example, when detecting force every second, VC rises from low level to high level once every second. It sends out a clock signal with a waveform like this.

When the clock signal from the output Hanoculus oscillator (c) of the comparator (g) is rarely given to the monostable multivibrator 6 through the AND circuit (g), it applies the Q (support) force for a predetermined period of time.・Make it illegal.

This predetermined time is set to a time slightly longer than the period of the clock signal. Therefore, as long as the output of the comparator □ remains, the AND circuit ) is given a trigger, and from that point on, the Q output is again brought to the No. 1 level for a predetermined period of time. and,
By opening the switch of the electromagnet (23a) by this Q output, the power supply to the magnetic belt conveyor unit α is cut off and the influence is eliminated, so that no braking force is generated.

Next, when the train is accelerated by the magnetic belt conveyor unit c10VC and approaches the set speed of the magnetic belt conveyor unit αQ, the generated driving force decreases as shown in Figure 6, so it acts on the force detector (A). The tension becomes weaker, and the output of the comparator (a) goes from no to a low level, so the monostable multivibrator's Qlfl force goes to a low level, υ, and this starts supplying power to the electromagnet (23a) again. do.

The above explanation is for the case of acceleration, but the same applies to the case of deceleration. In this case, in the control circuit of Fig. 2, 0→
Select all compression forces with the switch and output +-+mu? To (F
Senmu 21 I Detect the force (k) by the force detector (c) and turn on/off the electromagnet (23a) via the comparator O→
Performs off control.

Since the number of magnetic belt conveyor units for acceleration is fixed, the switching signal that operates the switching device (9) can be used to detect the end of acceleration by counting the output signal, or by using a timer to detect the end of acceleration. It is also possible to set a predicted value of the end of time, drive a timer at the time of departure from the station, and detect the end of acceleration based on the time-up.

〔Effect of the invention〕

As is clear from the above explanation, according to the method according to the present invention, when a train wants to use magnetic belt conveyor units IIc-j with different rotational speeds during acceleration or deceleration, the rear magnetic belt conveyor unit IIc-j By cutting off the power supply to the electromagnet corresponding to , the shadow Vt of the rear magnetic belt conveyor unit is eliminated, making smooth acceleration or deceleration possible.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a CTM that is the subject of the present invention, FIG. 2 is a block diagram of a control circuit for implementing a method according to an embodiment of the present invention, and FIG.
Draw a characteristic map of the evening. αq, αη...Magnetic belt; Bearing unit, (A)
...Army? ]), w...vehicle,' (21a)
, (22a), I':23a)...electromagnet, (goods), ni)...connecting rod, wire...force detector. Agent Patent Attorney Sanro KimuraFigure 1Figure 2Figure 3

Claims (1)

[Claims] When the leading car of a fixed train in which the cars are interconnected via connecting rods reaches the magnetic belt of the magnetic belt conveyor unit in front of it in the direction of travel, the magnetic belt on the magnetic belt conveyor unit in the rear A force detector is installed in the connecting rod that connects the frontmost vehicle and the vehicle ahead of it, and when the output of the detector exceeds a predetermined tensile or compressive force, the A method for accelerating and decelerating a magnetic continuous transportation system, characterized by cutting off power supply to an electromagnet in a vehicle.