JPS6366612A - Unmanned carrier - Google Patents

Abstract

PURPOSE:To easily move a faulty unmanned carrier from its stopped position with no use of human power by supplying power to the stopped carrier having a trouble of its built-in power supply device, etc., from a nondefective carrier. CONSTITUTION:When a carrier 2 is stopped by a trouble, another nondefective carrier 2a set at the side where a power supply receiving part 17 of the carrier 2 is formed is moved close to the carrier 2. Then an external contact 14a of a power supplying part 12a is put into an external contact 19 of the part 17 of the carrier 2 and a contact is secured between both internal contacts 13a and 18. Then the voltage is impressed to a power supply reception detecting relay 20 from a power supply device 15a of the carrier 2a. Thus a make contact 21 is actuated to release a damping state of an electromagnetic brake 8. In such a way, a faulty carrier can be easily moved from its stopped position with no use of human power, etc.

Description

[Detailed description of the invention] [Industrial application field] Party B's invention relates to an automatic guided vehicle, and in particular, a method for releasing the brake when the brake is activated due to a failure of a power supply device etc. built into the automatic guided vehicle. This invention relates to a device for moving a failed conveyance vehicle from a conveyance line.

[Conventional technology]

FIG. 3 is a plan view schematically showing a processing device, a conveyance line, etc., in which materials are supplied by a normal automatic guided vehicle. In the figure, (1) is a conveyance line where a conveyance vehicle runs, (2) is a conveyance vehicle, and (3) is a processing device in which materials are supplied and processed products are picked up by this conveyance vehicle (2). (4) is a maintenance area where vehicles that are on standby or are out of order are pooled.

Figure 4 is a schematic diagram, not showing the cross section of the main parts of the transport vehicle (2) in Figure 3, where (5) is the frame and (6) is the command for running, stopping, etc. of the transport vehicle (2). (7) is the motor that is the drive source of the transport vehicle (2); (8) is the motor that is the drive source of the transport vehicle (2);
), (9) is the drive transport, (10) is the caster, and (11) is the conveyor line.

During the operation of the unmanned transport system 1'1 with the above configuration, if a voltage drop or failure occurs in the power supply installed in the transport vehicle (2), the electromagnetic brake (8) is activated and the transport vehicle (2) is operated. 2), the following transport vehicle (2) will be stopped.
) will not be able to travel, and all conveyance work will have to be stopped.

In order to recover from this complete stoppage and return the conveyance work to normal, if the malfunctioning conveyance vehicle (2) is relatively light, several workers must manually operate the conveyance vehicle (2). ) while lifting the maintenance area (4)
Alternatively, connect a separate working power source to the electromagnetic brake (8) circuit of the failed transport vehicle (2) to deactivate the brake, or connect the drive wheels (9) and transport line surface (1)
A spacer is inserted between the machine and the machine (1), and the machine is moved to the maintenance area (4) while pushing the transport Jll (21) by hand using the casters (10).

[Problem that the invention seeks to solve]

In the conventional automated guided vehicle mentioned above, if a failure occurs in the built-in power supply during operation, the brake will be activated and the vehicle will stop. There were 1tq problems such as not only the labor-intensive work had to be performed, but also the line stoppage time becoming long, which significantly impeded production efficiency.

This invention was made to solve this problem, and even if the internal FFI source device stops due to failure etc.
To provide an automatic guided vehicle that can quickly move from a stopped position without requiring labor from a worker.

[Means for solving problems]

The automatic guided vehicle according to the present invention has a power supply unit that includes an internal contact connected to one terminal of a power supply device and an external contact connected to the other terminal on one side of the front and rear in the traveling direction. and, on the opposite side, an internal contact connected to one terminal of the power supply detection relay, and an external contact connected to the other terminal and into which the external contact of the power supply section can fit. A make contact is connected between the terminal of the power supply detection relay and the power supply line from the control device to the electromagnetic brake.

[Effect]

When the power supply section of a normal guided vehicle is connected to the power supply section of a failed guided vehicle that is stopped due to activation of the brake, the failed guided vehicle will receive power from the power supply built into the normal guided vehicle. Since the detection relay operates to release the brake EjJ operation, the broken vehicle can be easily moved.

[Embodiments of the invention]

FIG. 1 is a sectional view showing the configuration of an automatic guided vehicle according to an embodiment of the present invention, and (5) to (11) are the same or equivalent parts as in FIG. 4 showing the conventional example. be.

(12) is a power supply unit protruding from the front of the transport vehicle (2), which includes an internal contactor (13) connected to the positive pole of the emergency power supply unit (15), and a truncated conical tip. formed and arranged concentrically with the internal contactor (13) to connect the power supply device 2t (1
An external contact (14) connected to the negative electrode of 4), and an external contact (14) interposed between the external contact (14) and the frame (5) to It consists of a spring (1B) that presses and biases outward.

(17) is a power supply section (1) on the rear surface of the transport vehicle (2).
2), which is located on the same plane as the internal contact (18) and the external contact (12) of the power supply part (12).
The slope of 14) is O. It has a matching slope part and consists of a truncated conical external contact (19) arranged concentrically with the internal contact (18), and the internal contact (18) and external contacts (19) are respectively connected to terminals of a power supply detection relay (20).

One terminal of (21) is connected to the terminal of the power reception detection relay (20), and the other terminal is connected to the power supply line from the control device (6) to the electromagnetic brake (8). ), the make contact (22) is inserted into the power supply line from the control device (6) to the electromagnetic brake (8), and turns OFF when the power supply device etc. malfunctions to turn the electromagnetic brake (8) on. The break contacts (23) and (24) that operate the frame (5)
This is a coupler installed in the

Next, the present invention configured as described above will be explained in detail. If a failure occurs in the built-in lightning source device while the transport vehicle (2) is in operation, the break contact (22) is activated, the electromagnetic brake (8) brakes the drive wheels (9), and the transport vehicle (2) stops on the transport line (11) in Fig. 3.For example, if the transport vehicle (2) shown on the left side of Fig. 2 stops due to the above-mentioned failure, the operation of the unmanned transport line will be temporarily stopped. , bring the stopped transport vehicle (2), which is on the side where the power supply unit (17) of the failed transport vehicle (2) is installed, close to the stopped transport I!! (21), and
) into the external contact (19) of the power receiving part (17) of the transport vehicle (2), and then press the spring (1G).
are brought into contact with each other by compressing them, and both internal contacts (13a) and (18) are brought into contact with each other. Then, the couplers (23a) and (24) are engaged.

As a result, the voltage from the power supply device (15a) of the transport vehicle (2a) is applied to the power supply detection relay (20) via the internal contacts (13a), (18) and the external contacts (14a), (19). is applied, actuating the make contact (21) and driving the electromagnetic brake (8)! Release the brake on jJ wheel (9).

Next, the normal transport vehicle (2a) is driven to tow the malfunctioning transport vehicle (2), and the transport vehicle (2) is moved to, for example, the maintenance area (4) shown in FIG. Note that these transport vehicles (21, (2a)) may be towed by another towing ITf.

In the above embodiment, the power supply unit (12) is connected to the transport vehicle (2).
Although a case is shown in which the power receiving section (17) is provided on the front surface and the rear surface of the device, it may be reversed. In addition, although the case where the spring (16) is interposed in the Ts8 supply section (I2) is shown, the power supply section (I2) is
17) may be provided with a spring, or both may be provided with a spring. Additionally, an internal contact (13).

The shapes of (18) and the external contacts (14) and (19) are also not limited to those in the embodiment, and may be any shape as long as they can be easily electrically connected.

〔Effect of the invention〕

As explained above, the present invention provides a power supply section on one side of an automatic guided vehicle and a Ti source receiving section on the opposite side, so that the guided vehicle may fail to operate if the power supply unit built in the guided vehicle fails during operation. When the brake is activated and the vehicle stops due to reasons such as this, the power supply section of the normal vehicle is connected to the power supply section of the failed vehicle, and the brake operation of the failed vehicle is released so that the vehicle can be moved by towing, etc. With this structure, it is possible to easily move the failed transport vehicle from the stopped position without requiring any human power or the like.

Therefore, the time required to restore operations due to a failure can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is a sectional view schematically showing the structure of an automatic guided vehicle according to an embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the present invention, and Fig. 3 is a diagram showing the supply of materials, etc. by a normal automated guided vehicle. FIG. 4 is a plan view schematically showing a processing device, a transfer line, etc. in which processing is performed, and FIG. 4 is a cross-sectional view schematically showing main parts of a conventional automatic guided vehicle. In the figure, (1) is the transport line, (2) is the transport vehicle, (
3) is a processing device, (8) is an electromagnetic brake, (12) is a power supply section, (17) is a power receiving section, (13), (18)
) is an internal contact, (14), (19) is an external contact,
(20) is a power supply detection relay, (21) is a make contact, (22) is a break contact, and (23) and (24) are connectors. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] In an automated guided vehicle that has a control device that commands running, stopping, etc., and that runs on a conveyance line to supply materials to processing equipment, one of the front and rear sides of this automated guided vehicle is provided with a power supply section consisting of an internal contact connected to one terminal of the power supply device and an external contact connected to the other terminal, and on the opposite side, one of the power supply detection relays is installed. A power supply section is provided which includes an internal contact connected to the terminal and an external contact connected to the other terminal and into which the external contact of the power supply section can fit, and the terminal of the power supply detection relay and the above An automatic guided vehicle characterized in that a make contact is connected between a control device and a power supply line to an electromagnetic brake.