JP2514076B2 - Transportation control system for transportation trains - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a traveling control system for a transportation train that travels along a traveling route.

(Prior Art) This type of transportation train is controlled to automatically stop before each station or branch / merging route set in the traveling route, but prevents a rear-end collision with a preceding stopped train. It is necessary to control at the same time.

However, the train is provided with a stop detector for detecting the plate to be stopped provided at the stop position for normal stop control, and for the memorial prevention control after the preceding train. A rear-end collision prevention detector for detecting a rear-end collision prevention detection plate provided on the end side is provided on the front end side of the train. Conventionally, the stopping detector and the rear-end collision prevention detector are attached to a train via separate brackets.

(Problems to be Solved by the Invention) In the conventional configuration as described above, not only is it necessary to provide a bracket for each detector, but the stop detector adjusts the position in the perspective direction with respect to the detection plate for stop, The rear-end collision prevention detector has to be adjusted in the perspective direction with respect to the rear-end collision prevention detection target plate, and there is a drawback in that the position adjustment of these detectors takes time. Further, it is necessary to provide a power supply wiring and a detection output extraction wiring for each detector, which has a drawback that the wiring becomes complicated.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention is provided on the front end side of a transportation train that is self-propelled along a traveling route.
A rear-end collision detector and a stop detector are installed in a box in a back-to-back state in the vertical or horizontal direction, and the rear-end side of the train concerned is a rear-end collision detected by the rear-end collision detector of the following train. A detection target plate for prevention is provided, and a detection target plate for stop detected by the stop detector of the train is arranged at the stop position of the train, and the detection operation and the detection for stop of the rear collision prevention detector are provided. This invention proposes a traveling control system for a transportation train, which is configured so that the train is stopped by any of the detection operations of the container.

(Example) Hereinafter, one example of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a transportation train that runs on its own along a guide rail 2, and includes a proximity switch 3 as a stop detector, a proximity switch 4 as a rear-end collision prevention detector, and a stop release switch. A photoelectric switch photodetector 5 is provided on the front end side, and a rear impact detection target plate 6 is provided on the rear end side.
A station 7 to be detected and a photoelectric switch projector 9 for eliminating the stop are arranged at a station 7 set on the traveling route of the train 1.

As shown in FIGS. 2 and 3, the transport train 1 includes a drive wheel 10, a steady roller 11 and the drive wheel 1.
A drive trolley 14 including a motor 12 that drives 0 and a current collecting unit 13, a driven wheel 15, and a driven trolley 17 that includes a steadying roller 16, and a connecting member 18 that connects both trolleys 14 and 17. The guide rail 2 is composed of a transported object supporting base 19 suspended from the connecting member 18.
Is a monorail type with an I-shaped cross section, and a power feeding rail 20 is installed on one side surface.

The both trolleys 14 and 17 are attached to the front and rear ends of the connecting member 18 by bearing members 18a and 18b, respectively.
(See the figure), but the two bearing members 18a, 18b are connected to the bumper 2 via support members 22a, 22b so as to project forward and rearward of both trolleys 14, 17.
3a and 23b are attached. This bumper 23a, 23b
May be attached to both trolleys 14 and 17.

As shown in FIGS. 2 and 4, a bracket 24 extending forward is attached to the front bumper support member 22a, and the front end of the bracket 24 is used for stopping as shown in FIG. Proximity switch 3 and collision prevention proximity switch 4
Are installed in a back-to-back state so that the proximity switch 3 faces upward, and one box 25 in which the photoelectric switch photodetector 5 is installed is attached so as to face left and right. Rear bumper support
The detection plate 6 for preventing rear-end collision is attached to the rear side 22b, and when the front and rear transportation trains 1 approach within a certain distance, the succeeding train is above the rear end of the detection plate 6. The rear-end collision prevention proximity switch 4 faces each other, and the proximity switch 4 detects the detection target plate 6.

As shown in FIG. 3, the stop detection target plate 8 is attached to the guide rail 2 via a bracket 26 so as to be opposed to the stop proximity switch 3 installed upward on the box 25. The photoelectric switch projector 9 that is supported and used for releasing the stop is supported by the guide rail 2 via the bracket 27 so as to face the photoelectric switch receiver 5 that is laterally installed on the side surface of the box 25. Has been done. 28 is a bracket that supports the guide rail 2.

In the box 25, as shown in FIG. 6, an electromagnetic relay 29 is connected in series to a series circuit of a normally open contact 3a2 of the proximity switch 3 and a normally closed contact 5b of the photoelectric switch photodetector 5, and A control circuit in which a normally open contact 29a1 of the electromagnetic relay 29 is connected in parallel to the normally open contact 3a2 is built in, and from the box 25, a normally open contact 3a1 of the proximity switch 3,
Detection signal lines connected to the normally open contact 4a of the proximity switch 4 and the normally open contact 5a of the photoelectric switch photodetector 5, respectively.
In addition to 3L to 5L, the operation signal output line 30L connected to the series circuit of the normally closed contact 29b of the electromagnetic relay 29 and the normally closed contact 4 of the proximity switch 4, and the normally open contact 29a2 of the electromagnetic relay 29.
And an overrun detection signal output line 31L connected to a series circuit of the contact switch 3b and the normally closed contact 3b of the proximity switch 3. Of course, a power supply line 32L for supplying a power supply voltage is connected to each of the proximity switches 3 and 4, the light receiver 5 and the electromagnetic relay 29.

The transport train 1 is equipped with a controller (sequencer, microcomputer, etc.) that controls the motor 12 based on a detection signal obtained from the output lines 3L to 5L derived from the box 25. FIG. 7 is a circuit diagram for explaining a condition under which the controller outputs a stop command for stopping the motor 12.
The normally-closed contact 3a of the stop proximity switch 3, the normally-closed contact 5b of the photodetector 5 for releasing the stop, and the electromagnetic relay 33 for stop are connected in series, and the normally-open contact 3a and the normally closed contact 3a are connected. The normally open contact 4a of the rear-end collision prevention proximity switch 4 is connected in parallel to the series circuit of the contact 5b. Further, the self-holding contact 33a of the electromagnetic stop relay 33 is normally connected to the stop proximity switch 3 so that the electric train 1 is stopped even when the stop proximity switch 3 is out of the detected plate 8 for stop. It is connected in parallel to the open contact 3a. The power supply circuit of the motor 12 is opened by the excitation of the electromagnetic relay 33 for stopping, and the motor 12 is stopped.

Next, the operation of the above-described embodiment will be described. The motor 12 is moved by the electric power supplied from the power feeding rail 20 via the current collecting unit 13, the driving wheels 10 are rotationally driven, and the transportation train 1 is guided by the guide rail 2. Drive along. As described above, when the train 1 is in the running state, the electromagnetic relay 29 shown in FIG. 6 works to generate an output on the operation signal output line 30L. Therefore, it is appropriate that the train 1 is in operation by using this output. It can be displayed by various display means.

When the train 1 reaches the station 7, the stop proximity switch 3 detects the stop target plate 8 to excite the stop electromagnetic relay 33 shown in FIG.
The power circuit is opened, the motor 19 is stopped, and the transportation train 1 is stopped at the station 7. At this time, when the train 1 overruns and stops when the proximity switch 3 is disengaged from the plate 8 to be detected, an output is generated on the overrun detection signal output line 31L by the action of the electromagnetic relay 29 shown in FIG. Therefore, this output can be used to display the overrun state on an appropriate display means.

When the train 1 stopped at the station 7 is started, the photoelectric switch projector 9 for canceling the stop is energized to emit light. However, when the light receiver 5 of the train 1 receives the light beam from the projector 9, the normally-closed contact 5b in FIG. 7 is opened, the electromagnetic relay 33 for demagnetization is demagnetized, and the stop command is released, and it is stopped. The power supply to the motor 19 of the train 1 is restarted, and the train 1 starts. The light projector 9 extends from a position further forward than the front end position of the detection plate detection range of the proximity switch 3 to the rear end of the stop range of the train 1 where the proximity switch 3 detects the detection plate 8 and stops. Since the light projection range that can cover the range is provided, even if the position of the train 1 to be stopped is shifted back and forth within the allowable range, it is possible to reliably give the train 1 a command to cancel the stop.

When it is desired to pass the train 1 without stopping the train 1 at the station 7, the photoelectric switch projector 9 for canceling the stop is energized and emitted before the train 1 arrives. As a result, since the light receiver 5 receives the light beam of the projector 9 before the stop proximity switch 3 of the train 1 detects the stop target plate 8, the normally closed contact 5b of FIG. Electromagnetic relay for opening and closing before closing
Since the excitation of 33 is blocked, the stop command is not output. That is, the train 1 runs through the station 7. The photoelectric switch projector 9 is continuously energized and emitted at least until the train 1 reaches a position where the proximity switch 3 is removed from the stop detection target plate 8.

When the following train 1 approaches within a certain distance with respect to the train 1 stopped due to a failure or the train 1 stopped in the storage line, the rear-end collision prevention proximity switch 4 of the following train 1 causes the preceding stop train 1 to stop. Since the rear collision prevention detection target plate 6 is detected, the stopping electromagnetic relay 33 of FIG. 7 is excited, the power supply to the motor 12 is cut off and the succeeding train 1 collides with the preceding stopped train 1 as described above. Is automatically stopped.

When the train 1 is stopped by the detection operation of the stop proximity switch 3 or the rear-end collision prevention proximity switch 4 as described above, no output is generated on the driving signal output line 30L from the box 25. The operation signal and the overrun detection signal may be obtained by processing the detection signals obtained by the detection signal output lines 3L to 5L in the controller mounted on the train 1.

The distances between the stop proximity switch 3 and the rear-end collision prevention proximity switch 4 and the detection target plates 8 and 6 which are the detection targets must be set accurately. However, since the detected plate 8 is supported by the guide rail 2 and the detected plate 6 is provided on the train 1 supported by the guide rail 2, these detected plates 8 and 6 are vertically arranged with respect to the guide rail 2. As long as it is installed so that it is positioned at a predetermined level in the direction, the vertical level difference between both detection plates 8 and 6 is constant, and if both proximity switches 3 and 4 are proximity switches under the same conditions. Positioning the box 25 in which the both proximity switches 3 and 4 are mounted back to back together with the bracket 24 in the vertical position with respect to or with the bracket 24, the box 25 is positioned at the vertical center level between the detected plates 8 and 6. As a result, the vertical gap between the proximity switch 3 and the plate 8 to be detected and the vertical gap between the proximity switch 4 and the plate 6 to be detected become equal, and both proximity switches 3 and 4 operate normally. Become.

In the above embodiment, the photoelectric switch photodetector 5 for canceling the stop is incorporated in the side surface of the box 25, but this is not an essential condition for the present invention. For example, without using the photoelectric switch (5, 9) for canceling the stop, the detection target plate 8 for stop is switched by the actuator to a working position where the proximity switch 3 can detect and a non-working position where it cannot detect. Alternatively, the stop release can be performed by switching the position of the detected device 8. Furthermore, although the both proximity switches 3 and 4 are installed back to back, the two proximity switches 3 and 4 can be installed back to left if the orientations of the detection plates 8 and 6 are changed. Further, although the proximity switch is used as the detector, an optical detector can also be used.

(Operation and Effect of the Invention) As described above, according to the present invention, the detector for preventing rear-end collision and the detector for stopping are incorporated in one box so as to be back-to-back in the vertical or horizontal direction. The number of mounting parts is reduced, and the wiring of the power supply line and the detection signal output line can also be integrated into one, so it is possible to reduce the cost, and only adjust the position of this one box vertically or horizontally. , The gap between each detector and the corresponding detected plate can be adjusted at the same time,
The detector position adjustment work can be performed easily and easily.

[Brief description of drawings]

FIG. 1 is a schematic plan view for explaining the overall structure, FIG. 2 is a side view showing a concrete structure, FIG. 3 is the same vertical sectional front view, FIG. 4 is the same cross sectional plan view, and FIG. 5 is a detector unit. And FIG. 6 is a perspective view showing a plate to be detected, FIG. 6 is an explanatory view of a control circuit incorporated in the detector unit, and FIG. 7 is a circuit diagram explaining a train stop condition. 1 ... Transport train, 2 ... guide rail, 3 ... stop proximity switch, 4 ... end collision prevention proximity switch, 5 ...
Photodetector for photoelectric switch for canceling stop, 6 ... Detected plate for collision prevention, 7 ... Station, 8 ... Detected for stop, 9 ... Projector for photoelectric switch for canceling stop,
10 …… Drive wheel, 12 …… motor, 13 …… collector unit, 14 …… drive trolley, 17 …… driven trolley, 20 ……
Power supply rails, 23a, 23b …… bumpers, 25 …… boxes.

Claims (1)

(57) [Claims] Claims: 1. A rear-end collision detector and a stop detector are incorporated in one box on the front end side of a self-propelled transportation train along a traveling route in a vertically or laterally back-to-back state, On the rear end side, a rear-end collision detection target plate detected by the rear-end collision prevention detector of the following train is provided,
At the stop position of the train, a stop detection plate that is detected by the stop detector of the train is arranged, and the detection operation of the rear-end collision prevention detector and the stop detector is performed. A travel control system for a transportation train configured so that the train can be stopped.