JPH0944248A - Autonomous section controller for trolley type travel truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the autonomous section controller for the trolley type travel truck which can surely prevent rear end collision and is of simple constitution and inexpensive. SOLUTION: Trolley lines 2a to 2e and a travel rail 1 are divided into plural sections and for every adjacent sections (e.g. sections (n) and (n+1)), a relay Rn is interposed between the trolley line 2e for section control and a ground power source (V phase) in the downstream-side section (n+1). Then while a precedent truck 3 stays in this section (n+1), the relay Rn is fed with electricity through collector rings 4a and 4e of this truck 3. In the downstream-side section (n), a (b) contact Rnb of the relay Rn is interposed between the start/stop trolley line 2d and the power source and the relay Rn is fed with electricity to break the (b) contact Rnb , thereby stopping a following truck 3 which is entering this section (n).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an autonomous section control device for a trolley type traveling vehicle, and more particularly to a rear-end collision preventing means for traveling a plurality of trolley type overhead traveling vehicles along the same traveling rail provided with a trolley wire. It is useful when applied.

[0002]

2. Description of the Related Art Conventionally, a plurality of trolley type overhead traveling carriages (hereinafter,
As a rear-end collision prevention means when running a trolley)
There is a method using a rear-end collision prevention sensor, or a section control in which the traveling rail is divided into certain sections to control the entry of the truck into these sections. The latter section control is to transfer the seating information of each trolley to a computer on the ground for the divided section and manage each trolley by this computer to prevent a rear-end collision.

[0003]

However, in the section control according to the above-mentioned prior art, since each trolley is managed by using the computer on the ground, a large-scale facility is required on the ground.

Therefore, in view of the above-mentioned prior art, it is an object of the present invention to provide an autonomous section control device for a trolley type traveling vehicle which can surely prevent a rear-end collision of the vehicle and which is simple in structure and inexpensive.

SUMMARY OF THE INVENTION The structure of the present invention for solving the above problems is to provide a power supply trolley wire connected to a power supply, a start / stop trolley wire, and a section control trolley wire on a traveling rail. , These trolley lines and traveling rails are divided into a plurality of sections along the traveling direction of the bogie, and the sections adjacent to each other on the upstream side and the downstream side in the traveling direction of these sections are used for section control in the downstream section. A relay is provided between the trolley wire and the power supply, and while the preceding trolley is occupied in the downstream section, the trolley wire for section control and the trolley wire for power supply are in contact with each other. The relay is configured to be energized via electrons, and a contact of the relay is provided between the start / stop trolley wire and the power source in the upstream section, and the contact when the relay is energized Opening and closing operation Accordingly, characterized by being configured so as to stop subsequent carriage having entered into the upstream side in the interval.

Therefore, according to the present invention having the above-mentioned structure, in any upstream and downstream side sections adjacent to each other, while the preceding bogie is occupied in the downstream side section, the section is controlled for the downstream side section. The relay connected to the trolley wire is energized, and thereby the contact of the relay connected to the start / stop trolley wire in the upstream section operates, so that the subsequent contact that has entered the downstream section at this time The dolly stops within this downstream section. After that, when the preceding bogie moves from the downstream section to the further downstream section, the relay is de-energized, so that the succeeding bogie stopped in the upstream section is restarted to the downstream section. And proceed. Thus, it is possible to prevent the succeeding carriage from colliding with the preceding carriage.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram of an autonomous section control device for a trolley type overhead traveling carriage according to an embodiment of the present invention, and FIG. 2 shows a configuration of an nth section of the control device shown in FIG. It is a block diagram shown with a cross section.

As shown in FIGS. 1 and 2, the carriage (main body)
On the traveling rail 1 on which the vehicle 3 travels, the current collector 4 of this trolley 3
a, 4b, 4c, 4d, and 4e are in contact with each other, that is, five trolley wires, that is, three trolley wires 2a and 2 connected to each of the U-phase, V-phase of the power supply (ground equipment) and the ground wire.
In addition to b and 2c, two trolley wires 2d and 2e for starting and stopping and for section control are provided in parallel.

These trolley wires 2a, 2b,
2c, 2d, 2e and the traveling rail 1 are divided into arbitrary plural sections along the traveling direction of the carriage 3 (direction from left to right in FIG. 1). In FIG. 1, as a representative, the n-th section on the upstream side in the traveling direction and the (n + 1) -th section on the downstream side in the traveling direction adjacent to this section are shown.

In section n (nth section), a relay R _n-1 is provided between the section control trolley wire 2e and the power source (V phase), and in section n + 1 (n + 1st section). A relay R _n is provided between the section control trolley wire 2e and the power supply (V phase).

In section n, the b contact R _nb of the relay R _n is provided between the start / stop trolley wire 2d and the power supply (V phase), and in section n + 1 the start / stop trolley wire. Relay R not shown between 2d and the power supply (V phase)
The b contact R _{n + 1b} of _{n + 1} (which is provided between the section control trolley wire 2d and the power supply (V phase) in the (n + 2) th section (not shown)) is provided. That is, the start / stop signal line of the carriage 3 is the start / stop trolley wire 2d.
And the relays R _n and R _{n + 1 through} the b contacts R _nb and R _{n + 1 b} to the ground power source. The signal on this signal line is "started" when the ON state is held and "stopped" when the OFF state is held.

A start / stop switch 5 provided on the ground facility is interposed between the b contacts R _nb and R _{n + 1b} and the power source (V phase). Further, the collectors 4e and 4a of the carriage 3 are connected.

The other sections not shown have the same construction as above.

Therefore, according to the autonomous section control device for a trolley type overhead traveling carriage having the above-described structure, while the preceding carriage 3 advances to the section n + 1 and is occupied (sit) in this section, this carriage is 3 of the current collector 4a, relay R _n is energized through 4e, open contact b R _nb of the relay R _n. as a result,
The start signal of the section n is turned off, and the succeeding vehicle 3 that has entered the section n stops within the section n. At this time, the length of one section is set to be equal to or longer than the minimum stop distance of the truck 3 so that the truck 3 stops within the section n.

After that, when the preceding bogie 3 occupied in the section n + 1 moves to the section n + 2 (not shown) on the further downstream side, the relay R _n is de-energized and its b contact R
_{Since nb} is closed, the activation signal of the section n is turned on, the succeeding trolley 3 stopped in this section n is re-started, and the process proceeds to the section n + 1.

Thus, it is possible to prevent the succeeding carriage 3 from colliding with the preceding carriage 3 within the section n + 1. In the other adjacent sections, the rear-end collision of the truck 3 is similarly prevented. That is, it is possible to prevent a plurality of trolleys 3 from entering into one section, and to reliably prevent the trolley 3 that follows the trolley 3 from following the trolley 3 that follows.

In addition, the present control device has a simple structure because one trolley wire is added and a relay is provided in the ground facility. Therefore, the control device is low in cost and does not require complicated control. Also, it is possible to easily monitor the presence information of the truck on the ground from the contact of the relay.

[0018]

As described above in detail with the embodiments of the present invention, according to the present invention, a plurality of trucks can be prevented from entering into one section, and the preceding truck can be reliably driven. It is possible to prevent a succeeding vehicle from colliding with another vehicle. Moreover, as compared with the prior art, one trolley wire can be added and a relay can be provided, and the configuration is simple. Therefore, the cost is low and complicated control is not required.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an autonomous section control device for a trolley type overhead traveling vehicle according to an embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of an n-th section of the control device shown in FIG. 1 together with a rail cross section of this section.

[Explanation of symbols]

1 rails 2a, 2b, 2c, 2d, 2e trolley wire 3 carts 4a, 4b, 4c, 4d, 4e collecting electron R _n , R _n-1 relay R _nb , R _{n + 1b} b contact

Claims (1)

[Claims] 1. A power supply trolley wire connected to a power supply,
A start / stop trolley wire and a section control trolley wire are provided on the traveling rail, and these trolley wires and traveling rails are divided into a plurality of sections along the traveling direction of the bogie, and
A relay is provided between the section control trolley wire and the power source in each of the sections adjacent to each other on the upstream side and the downstream side in the traveling direction of these sections, and the preceding bogie is connected to the downstream section. While being occupied, the relay is configured to be energized via the current collectors of this trolley that are in contact with the section control trolley wire and the power supply trolley wire, respectively, and the start / stop trolley is provided in the upstream section. A contact of the relay is provided between the line and the power supply, and the following truck that has entered the upstream section is stopped by the opening / closing operation of the contact when the relay is energized. An autonomous section control device for a trolley-type traveling vehicle characterized by.