JPH0235110A - Unmanned operation method for concrete transportation transfer car - Google Patents

Abstract

PURPOSE:To enhance working efficiency by carrying out the transfer of concrete to the concrete bucket being moved by a crane by using a transfer car, and further carrying out unmanned control on the basis of the position information of the bucket. CONSTITUTION:In the construction site of a gravity-type concrete dam, concrete is transferred on a transfer car 5, which travels on a bunker line 4, from a concrete batcher plant. Next, the concrete bucket 2 being moved by a cable crane, which has been suspended at right angles to the bunker line 1, is moved to the transfer car 5. Then, the concrete inside the transfer car 5 is transferred to the concrete bucket 2, and the concrete is transferred to the concrete placing site of the dam. And the control of the transfer car 5 is carried out by the detection of the electrical position of the concrete bucket 2.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention is applied to unmanned transportation of concrete at the construction site of a single-gravity concrete dam by using a transfer force to transport concrete from a concrete bucket-plant to a concrete bucket suspended from a cable crane. Regarding the method.

``Conventional technology'' At the construction site of a gravity-type concrete dam, a concrete bucket is moved by a cable crane, and concrete and mortar from a batcher plant are transported to the landing position of the concrete bucket using transfer force, and then poured into the packet. There is.

In conventional transfer force operation, a person gets into the driver's seat, receives concrete from a concrete bucket plant, and moves the concrete along a bunker line to the landing position of the packet. Thereafter, a person operates the transfer force vessel to discharge the loaded concrete into packets, which travel along the bunker line and return to the batcher plant.

``Problem to be solved by the invention'' At the construction site of a gravity concrete dam, concrete is poured continuously day and night for long periods of time. For this reason, transfer power drivers spend long hours in the cramped driver's seat.
It required repeated monotonous work, and there was a risk that a simple operational error due to fatigue could cause a major accident.

Therefore, the present invention automatically operates the operation of the transfer force and the work of discharging the concrete loaded on the transfer force into packets based on electrical information, thereby safely performing concrete pouring work at concrete dams. The purpose is to provide uniformity to poured concrete and to enable preferable concrete pouring.

"Means for Solving the Problems" The present invention is an unmanned operation method of transfer force used when conveying concrete from a batcher plant to a concrete bucket during concrete pouring work during gravity concrete dam construction.

In this method, position information of the concrete bucket is transmitted to a transfer force operation device, which is operated to move the transfer force to the landing position of the concrete bucket.

In addition, it may be transmitted directly to the operation control device without going through the transfer force control device at the ground base. Next, it is electrically detected that the concrete bucket is at the predetermined position of the transfer force, and the transfer force is controlled. input to the vessel operating device. With this input, the vessel operating device raises the vessel and pours concrete, etc. into the concrete bucket, electrically detects the completion of concrete pouring, and returns the vessel to its original position using the vessel operating device.Next, the vessel returns to its original state. Electrical information is input to the transfer force operating device to transfer the transfer force to the batcher plant. Separately, it is also possible to monitor the operation status of the transfer force by transmitting the operation information of the transfer force operation control device to the transfer force operation status 72 terminal computer via the transfer force control device on the ground base. .

"Operation" With the above means, the landing position of the concrete bucket can be electrically detected, and the transfer force can be automatically moved to the packet landing position based on the detected information. Also, after electrically detecting that the packet is in place, the transfer force vessel is automatically raised to release concrete into the packet. Therefore, there is no need for humans to operate the transfer force or discharge concrete into packets, and the equipment can be automatically controlled to perform simple repetitive work safely and continuously for long periods of time. Concrete uniformity can be maintained.

"Example" Embodiments of the present invention will be described with reference to FIGS. 1 to 5.

At a gravity concrete dam construction site, a horizontal cable crane is installed along the dam body, and a concrete bucket 2 is suspended from a traversing trolley 1 installed on the horizontal cable crane.

The concrete bucket 2 can be raised and lowered by a winch device (not shown). One end side of the horizontal cable crane is connected to a traveling trolley 3 of a vertical cable crane, so that the concrete bucket 2 can be moved in the vertical direction by its movement. A bunker line 4 is installed in a direction perpendicular to the cable crane supporting the traversing trolley l, a batcher plant B is provided at one end of the bunker line, and a transfer force 5 running on the bunker line is loaded with concrete. It is now possible to

The traveling trolley 3 transmits its position information via a radio 3a, and the information is transmitted to the transfer force control device 8 at the ground base via the traveling trolley position relay board 6 and the cable crane external operator's room 7. ing. The transfer force control device 8 is provided with switches for starting, reversing, discharging mode selection, stop at -, emergency stop, etc., as well as indicator lights indicating abnormal conditions, and controls operation of the transfer force according to the switch signals. Correspondence information is transmitted to the operating device 9 (see FIG. 3).

On the other hand, the transfer force 5 is transmitted by the driving operation device 9 to calculate the start, acceleration, and deceleration position based on the concrete bucket position information, to temporarily stop several meters before the predetermined position when the concrete bucket has not landed, Slow forward movement based on reception of concrete bucket landing information, stop based on reception from a stop signal equipped with a shock absorber equipped with a transfer force upon contact with the concrete bucket, further acceleration backwards after completion of pouring concrete, deceleration at a fixed position, and batcher plant position. Stops are made based on each location information, and an alarm is issued in the event of an abnormality. (See Figure 4).

The driving operation device 9 connects to the transmitting/receiving radio device 10,
Transmitting/receiving radio device 1 connected to transfer force control device 8
1, the concrete bucket position information (corresponding to the position of the traveling trolley 3) is transmitted. Also, in the opposite direction to this transmission, the position information of transfer force 5 is
Transmitting/receiving radio equipment from the transmitting/receiving radio equipment 10! The position information of the transfer force transmitted to the transmitting/receiving radio device 11 is input to the operation status monitor PC P at the ground base, so that the operation of the transfer force can be monitored. There is.

A radio device 12 for transmitting packet landing information is provided in the concrete bucket 2, and the packet landing information is then transmitted to the operation control device 9 via a receiving radio device 13 provided in the transfer force 5. There is. In addition, the transfer force 5 is such that the concrete can be reliably discharged from the vessel 14 to the concrete bucket 2.
A photoelectric switch 15 for packet detection and a packet positioning detection rod 15a are provided.

The vessel 14 can be raised and returned by a cylinder, and is provided with a switch 17 that detects the raised state and the returned state, and the detected information is input to the vessel operating device 18 (Fig. 4). ), and the vessel operating device W18 opens the gate 1B of the vessel 14 based on the detection information from the detection rod 15a, raises the vessel 14 by actuating the cylinder and pours concrete into the concrete bucket 2, and indicates completion of concrete pouring using a photoelectric sensor. It is designed to detect and close the gate, lower the vessel, and even issue an alarm in the event of an abnormality.

Next, a method of operating the transfer force equipped as described above will be explained based on FIG.

When the transfer force control device 8 is operated to start, the information is transmitted from the radio 11 to the transfer force radio IO.
The batcher plant B receives the concrete into the vessel 14 with a transfer force of 5, and the operation device S checks the condition before starting and issues a start command.Meanwhile, The position information of the packet 2 is transmitted from the radio device 3a provided on the traveling trolley 3 to the traveling trolley position relay board 6, the transfer force control device 8. Transmit to the driving operation device ff13 via the transmitting/receiving radio device 11,
A target distance for the transfer force 5 to wait is calculated and set, and the transfer force 5 starts moving forward.If there is a problem in the starting state check, an alarm is issued.

After the transfer force 5 starts moving forward, the driving operation device 8 calculates acceleration and constant speed operation, and when the packet 2 has not landed at a predetermined position on the bunker line 4, it decelerates based on the packet position information and temporarily stops at the standby position. do.

When the packet 2 lands on the floor, the information is transmitted from the packet landing transmitter 12, and when the U4 device 9 receives it via the radio 13, the transfer force 5 is advanced at a slow speed and comes into contact with the packet 2, and the contact information is transmitted. is the detection rod 15a
The transfer force 5 is transmitted to the driving operation device 8 from
The concrete receiver will stop in position. Note that while the packet 2 has not landed on the floor, the transfer force 5 is temporarily stopped at the standby position.

When the photoelectric switch 15 detects that the packet 2 is in the correct position with respect to the vessel 14 with the transfer force 5, and inputs the detection information to the vessel operating device 18,
Vessel 14 game) 18 is open.

Furthermore, the vessel is raised by cylinder operation and concrete is discharged into the packet 2. When the discharge of concrete is completed, the vessel operating device Hts, which has received the information (for example, a photoelectric switch installed at the gate detects that there is no concrete), operates in the opposite manner as described above to move the gate 1B.
is closed and the vessel 14 is lowered. In addition, packet 2
If the packet 2 is not in the correct position with respect to the cell 14, the operation device 3 moves the transfer force 5 backward at a slow speed to return it to the standby position, and operates the cable crane or winch suspending the packet 2 to correct it. Move to position 2
Transfer forces 5 are applied again in the above order.

After the concrete is discharged, when the vessel 14 is lowered and returned to its original position, the driving operation device 9 that has received this information causes the transfer force 5 to move backward, thereby accelerating and driving at a constant speed. Then, when it reaches the deceleration start position, it decelerates, and when it reaches the batcher plant B position, it stops.

During the operation of the transfer force 5, its position information is transmitted from the transmitter/receiver radio 10 to the transmitter/receiver 1i1111 of the ground base.
The position information is transmitted to the transfer force control device 8 via the transfer force control device 8, and the position information is input into the operating status monitoring personal computer P to monitor the operating status of the transfer force 5.

In addition, in the above embodiment, the radio device 3a provided on the traveling trolley
, the position information of packet 2 was sent to the transfer force operation device 8 via the transfer force control device 8 on the ground base, but it was sent directly to the radio of the operation operation device 9 without going through the transfer force control device 8. You may also send it.

"Effects of the Invention" The transfer force unmanned operation method of the present invention electrically detects the position of the concrete bucket, moves the transfer force based on the detected information, and automatically transfers the vessel loaded with concrete to the concrete bucket. Since it can be discharged, there is no need for a person to directly operate the concrete, thus eliminating erroneous operations such as runaway transfer force due to operator error, concrete being discharged at a place other than the designated location, and rear-end collision with a packet. In addition, the concrete placement cycle time has been made more uniform, improving the performance of the poured concrete.Furthermore, since no operators are required, human safety is maintained, and work can be done for long periods of time, increasing work efficiency. improvement and cost reduction.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the transfer force unmanned operation method of the present invention, FIG. 2 is a perspective view of a dam construction site to which the transfer force unmanned operation method is applied, FIG. 3 is an explanatory diagram of the operation of the transfer force control device, and FIG. The figure is an explanatory diagram of the operation of the transfer force and the operation of the vessel, and FIG. 5 is an explanatory diagram showing the procedure of the operation of the transfer force and the operation of the vessel. 2; Concrete bucket 3; Running trolley 5: Transfer force 8; Transfer force control device 9; Driving operation device 18: Vessel operation device B; Batcher plant P; Monitoring personal computer

Claims (2)

[Claims] (1) In a transfer force operation method in which a concrete bucket is made movable by a cable crane and concrete, etc. is transported from a batcher plant and placed into the concrete bucket, position information of the concrete bucket is transmitted to a transfer force operation device. The transfer force is moved to the landing position of the concrete bucket by activating it, electrically detects that the concrete bucket is at the predetermined position of the transfer force, and the transfer force vessel receives the detected information. The operating device raises the vessel and pours concrete, etc. into the concrete bucket, electrically detects the completion of concrete pouring, returns the vessel to its original position using the vessel operating device, and transfers the electrical information of the returned vessel to the transfer force. 1. A transfer force unmanned operation method for concrete transportation, characterized in that the transfer force is transferred to a batcher plant by inputting the transfer force to an operation operation device. (2) Send the concrete bucket position information to the transfer force control device on the ground base, have the transfer force control device transmit the concrete bucket position information to the transfer force operation device, and separately control the transfer force operation device. 2. The method of unmanned operation of a transfer force for transporting concrete according to claim 1, wherein the operation information is sent to a personal computer for monitoring the transfer force operation status at a ground base so that the transfer force operation status can be monitored.