JPH083271B2 - Automatic air supply control device for opening / closing in concrete bucket opening / closing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic supply and control device for opening and closing air in an opening and closing device for a concrete bucket, and particularly when pouring concrete at a dam construction site or the like. The present invention relates to an automatic supply control device for automatically supplying air, which is a drive source for opening and closing a gate, to a concrete bucket that is opened and closed by a predetermined remote operation such as wireless communication.

[Prior Art] Conventionally, in a dam construction site, a concrete bucket hung by a cable crane is generally used as a transportation device for transporting concrete milk to a setting site.

Then, for the transportation and placement of concrete milk using this concrete bucket, the concrete milk is filled into the bucket up to the placement site and transported by a crane,
The concrete milk is dropped by opening the gate of the bucket, an example of which is shown in Japanese Patent Laid-Open No. 60-158086.

The concrete bucket disclosed in this publication is
As shown in FIG. 18, compressed air (air) is used as a drive source,
For example, cylinders 1, 1 controlled by wireless remote control
The opening and closing gate 3 of the bucket 2 is rotated by the expansion and contraction of
The concrete milk filled in the bucket 2 is discharged to the outside.

By the way, when the bucket 2 is guided by the guide 4 and is placed at a predetermined position on the receiving stand 5, the compressed air (air) that is the driving source of the cylinders 1 and 1 is connected to the tank 6 through the air receiving port. 7 and the air supply port 8 provided in the pedestal 5 are connected to each other so that the tank 6 is filled with the air.

However, in the air supply device having such a configuration,
In particular, there were the following problems when applied to a track cable crane.

[Problems to be Solved by the Invention] That is, when the concrete bucket 2 is transported by the railroad cable crane, as shown in FIG. 19, the support pillar P1 is formed in a substantially triangular shape so as to cover the outer peripheral surface of the dam A. ,
P2 and P3 are erected, and a cable Z is erected via a movable connecting point Y between the support columns P1, P2 and P3, and the support column P1
Concrete bucket 2 on the cable Z between the
Is suspended, and the connecting point Y of the cable Z is moved in an arc shape within the range of the arrow H according to the progress of the placing, and the concrete milk is dropped from the concrete bucket 2 and the placing operation is performed.

In this case, the supply of concrete milk to the concrete bucket 2 and the supply of air as the drive source of the opening / closing gate 3 lay a rail at a position almost equal to the movement locus of the connecting point Y, and the transfer car traveling on this rail. 14
The pedestal 5 on which the concrete bucket 2 is placed is towed, and the pedestal 5 is further provided with an air supply port 8 for engaging with the air receiving port 7 on the concrete bucket 2 side. It was supposed that the concrete bucket 2 placed on the container was filled with concrete milk from the transfer car side.

However, suspending the bucket 2 with a cable crane is basically difficult to land accurately on the pedestal 5 due to the influence of wind and the like, and the bucket 2 shown above has an air receiving member at the bottom thereof. Since the inlet 7 is provided, it is extremely difficult to follow the movement of the air supply point due to the wind or the like as described above.

Further, since the transfer car 14, the bucket 2 and the cable Z are controlled remotely from the operation room provided on the batcher plant which is usually installed at one end of the rail, the pedestal 5 is also controlled from this aspect. It was difficult to place the bucket 2 accurately.

The present invention was devised in view of such conventional problems, and an object thereof is to supply air as a driving source without landing the bucket 2 on the receiving table 5 with high accuracy. It is an object of the present invention to provide an automatic supply / control device for opening / closing air in a concrete bucket opening / closing device that can be swiftly and reliably.

[Constitution of the Invention] An automatic supply control device for opening and closing air in a concrete bucket opening and closing device according to the present invention is provided for opening and closing air in a concrete bucket opening and closing device which is suspended by a cable crane and can be opened and closed by a predetermined operation. In the movement supply control device, an air receiving port that communicates with an internal air tank is provided on a side surface of the concrete bucket, and the transfer receiving device that supplies concrete milk into the concrete bucket is engaged with the air receiving port. An air supply port is provided, and the air supply port can be moved forward and backward, vertically and horizontally so that it can be engaged with the air receiving port, and the directional angle of the air supply port can be adjusted.

[Embodiment] The present invention will be described below based on an embodiment shown in the drawings.

First, FIG. 1 shows an outline of the entire configuration in a state where the present invention is used.

The concrete bucket 2 that is hung on the cable Z through the hanging metal fitting 10 and the tons furker 14 that runs on the rail 12 come into contact with each other to perform the air supply work.
An air receiving port 16 is provided on the side surface of the bucket 2 side, and the air receiving port 16 communicates with a tank 6 contained in the bucket 2.

Next, the mounting state of the air receiving port 16 is shown in FIGS.

The air receiving port 16 is provided in the space provided in the main body 100 of the bucket 2 via the housing 101, and a plurality of the tension springs 102.
It is attached so that it can swing.

Since the air receiving port 16 is swingable in this way, it can sufficiently withstand some vibration and shock.

Although the air supply port 18 is provided on the transfer car 14 side so as to face the transfer car 14, the movement of the bucket 2 onto the rail is performed by wireless remote control as described above, and due to wind. Due to concern about the influence, the air receiving port 16 cannot be accurately opposed to the air supplying port 18, and therefore, in order to supply the air quickly and reliably, the air supplying port on the transfer car 14 side is required. Around 18,
It is necessary to vertically and horizontally move and adjust the directivity angle of the air supply port 18 so as to be accurately engaged with the air receiving port 16.

Here, FIGS. 4 and 5 schematically show a supply device 19 provided on the transferer 14 side and having an air supply port 18.

On both sides of the air supply port 18, there are provided touch sensors 20 and 21 each having a rod shape and configured to be movable back and forth.

And the supply device body 24 provided with the air supply port 18
Is movable by a slide hydraulic cylinder 23 in the longitudinal direction of the slide frame 22. Further, the supply device main body 24 is movable in the front-rear direction by a nozzle pushing hydraulic cylinder 25.

The supply device body 24 is also movable in the vertical direction by a lifting hydraulic cylinder 26.

Further, in the drawings, reference numeral 27 indicates an angle adjusting hydraulic cylinder, and the supplying device main body 24 is rotatable by the angle adjusting hydraulic cylinder 27 about a rotary shaft 28 as a fulcrum. For entrance 16,
The directivity angle of the air supply port 18 can be adjusted so that the air supply port 18 can be accurately engaged.

In the above, the automatic supply control operation of the opening / closing air in the concrete bucket opening / closing device will be described below.

First, the transfer car 14 contacts the concrete bucket 2 to start filling concrete milk,
Air up to a predetermined pressure is supplied from the supply device 19 by the air pressure signal in the bucket tank 6.

The operation will be described with reference to FIGS. 6 to 14.

First, sensing members 29, 29 for sensing the movable position of the movable air supply port 18 in the left-right direction are attached to the outside of the air receiving port 16 provided on the concrete bucket 2 side, and the air receiving port 16 is installed. Sensing members 30, 30 for sensing the vertical movement position of the air supply port 18 are attached to the outer left and right directions (see FIG. 15).

Then, the air inlet 16 on the concrete bucket 2 side
When the position of the air supply port 18 on the transfer car 14 side does not match with the left-right direction, as shown in FIG. 6 and FIG.
The air supply port 18 is moved in the horizontal direction by the hydraulic cylinder 23 for sliding, and the sensing members 29, 29 are provided by switches 31, 31 such as photoelectric tubes provided in the vertical direction of the supply device main body 24.
Is detected, and the lateral movement of the supply device 19 is stopped by the detection signal (see FIGS. 7 and 8).

Next, the supply device main body 24 starts to move in the vertical direction by the lifting hydraulic cylinder 26 (see FIG. 9), and the switches 32 and 32 composed of photoelectric tubes provided on the left and right of the supply device main body 24 are made into concrete. The sensing members 30, 30 provided on the outer left and right sides of the air inlet 16 of the bucket 2 are sensed, and the sensing signal stops the vertical movement of the supply device body 24 (see FIGS. 10 and 11).

Next, from that state, the supply device main body 24 is pushed forward by the hydraulic cylinder 25 for nozzle extrusion (see FIG. 12), and when the air receiving port 16 and the air supply port 18 are aligned with each other, the air is directly supplied. The directivity angle of the supply port 18 is not adjusted, and the air supply port 18 is smoothly fitted into the air receiving port 16 (see FIG. 13).

On the other hand, when the air receiving port 16 and the air supplying port 18 are out of alignment with each other and are not located on a straight line, the angle adjusting hydraulic cylinder 27 is used to turn the supplying device body 24 (see FIG. 14). It is necessary to position the receiving port and the air supply port 18 on a straight line.

The operation will be described. When the supply device main body 24 advances, pulse signals are oscillated and counted, and rod-shaped touch sensors 20 and 21 provided on both left and right sides of the air supply port 18 are counted.
Calculates the pulse value that oscillates until the blade contacts the flange on the bucket 2 side.

By the way, when the pulse values generated until the touch sensors 20 and 21 come into contact with the flange on the bucket 2 side are the same value, it is assumed that the air receiving port 16 and the air supplying port 18 are located on the same straight line. Assuming that there is no need to adjust the directivity angle of the air supply port 18.

However, if the pulse values calculated until the touch sensors 20 and 21 contact the flange on the bucket 2 side are different, the air receiving port 16 and the air supplying port 18 are not located on the same straight line, A predetermined intersection angle is formed on the extension line of the receiving port 16 and the air supply port 18.

Therefore, in such a case, according to the present invention, it is determined that the larger pulse value has an angle deviation, and the deviation angle is calculated from the difference between the pulse values of the oscillated pulse signals to determine the direction of the air supply port 18. The angle will be adjusted.

 A specific example is shown in FIG.

That is, both touch sensors 2 from the forward movement of the air supply port 18
The deviation angle of the air supply port 18 is calculated by a computer based on the difference in pulse values calculated until 0 and 21 come into contact with the flange on the bucket 2 side, and the angle adjusting hydraulic cylinder 27 is moved to move the air supply port 18 Supply device body 24 with
Adjust the angle toward the air inlet 16 (see Fig. 14),
The air receiving port 16 and the air supply port 18 are positioned on a straight line so that they can be smoothly engaged with each other.

By the way, after the angle adjustment, the positions of the air supply port 18 with respect to the air receiving port 16 in the left-right direction and in the up-down direction are slightly displaced, so that the displacement needs to be finely adjusted.

Therefore, after the angle adjustment, the sensing members 29, 2 are again
In order to detect 9, 30, 30 the switches 31, 31, 32, 32 composed of photocells and the like are moved to finely adjust the position in the horizontal and vertical directions.

Then, after finely adjusting both of them, the air supply port 18 is moved forward again to be smoothly engaged with the air receiving port 16.

These operations will be described with reference to the flowchart shown in FIG.

First, the supply device body 24 having the air supply port 18 is moved in the left-right direction by the slide hydraulic cylinder 23 (step 201).

Then, the positions of the sensing members 29, 29 are sensed by the switches 31, 31 to adjust the left / right direction and stop the movement in the left / right direction (steps 202, 203).

Next, the positions of the sensing members 30 and 30 are sensed by the switches 32 and 32 to adjust the vertical direction and stop the vertical movement.

Then, the air inlet 18 is connected to the hydraulic cylinder 25 for nozzle extrusion.
To move forward (step 104). At this time, if there is an angle deviation between the air inlet port 18 on the concrete bucket 2 side and the air supply port 18 on the transfer car 14 side and they are not located on a straight line, how much angle deviation is present? It will be detected by the touch sensors 20, 21 and the like.

That is, for example, when the touch sensor 20 on the left side contacts the frame on the concrete bucket 2 side, the air receiving port 18
The calculated value of the pulse signal from the start of forward movement until the touch sensor 20 comes into contact is read (steps 205 and 206).

Furthermore, the air inlet 18 is a hydraulic cylinder 25 for nozzle extrusion.
Thus, the calculated value of the pulse signal until the touch sensor 21 on the right side comes into contact with the frame on the concrete bucket 2 side is read (steps 207 and 208).

After that, the air supply port 18 is retracted in step 209, but after that step 209, the CPU calculates the difference between the read pulse values to calculate the deviation angle, and corrects the supply device body 24 having the air supply port 18. The angle is determined by the calculated value (step 210).

In this way, the correction angle is determined, the supply device body 24 turns (step 211), and the air receiving port 16 on the concrete bucket 2 side and the air supply port 18 provided on the supplying device 19 side.
And are located on a straight line.

After that, further fine adjustment of the air supply port 18 in the left-right direction and the positions of the sensing members 30, 30 are detected by the switches 32, 32 to adjust the up-down direction, and the movement in the left-right and up-down directions is stopped (step 212). , 213, 214, 215).

In this state, the air supply port 18 moves forward again (step 21
6).

Then, the air supply port 18 is smoothly engaged with the air receiving port 16 on the bucket 2 side, and finally the air serving as the gate opening / closing drive source is supplied into the tank (step 21).
7).

[Advantages of the Invention] The present invention has the above-described configuration, and if it is the automatic supply control device for the opening / closing air in the concrete bacate opening / closing device according to the present invention, the landing state of the concrete bucket suspended by the cable crane or the landing thereof Position
Even if the bucket is landed on the rail without strict control, the air required for opening and closing the bucket can be reliably and quickly supplied from the transfer car.

[Brief description of drawings]

FIG. 1 is a schematic view showing the structure of the present invention, FIG. 2 and FIG. 3 are sectional views showing the outline of an air inlet, front view, FIG. 4 and FIG.
The drawings are perspective views, plan views, FIGS. 6 to 14 and FIG. 16 showing an automatic supply control device for opening / closing air in a concrete bucket opening / closing device according to the present invention, and FIGS. Is a front view showing a sensing member provided at the air inlet, FIG. 17 is a flow chart showing the operation of the present invention, FIG. 18 is a schematic view showing a conventional example, and FIG. 19 is a schematic view showing a moving state of a concrete bucket. Is. A ... Dam P1, P2, P3 ... Support pillar Z ... Cable Y ... Connection point H ... Arrow 1 ... Cylinder 2 ... Bucket 3 ... Opening / closing gate 4 ... Guide 5 ... Receiving stand 6 ... … Tank 7 …… Air receiving port 8 …… Air supplying port 10 …… Suspension fitting, 12 …… Rail 14 …… Transfer car 16 …… Air receiving port 18 …… Air supplying port 19 …… Supply device 20, 21… … Touch sensor 22 …… Slide frame 23 …… Slide hydraulic cylinder 24 …… Supply device body 25 …… Nozzle pushing hydraulic cylinder 26 …… Lift lifting hydraulic cylinder 27 …… Angle adjustment hydraulic cylinder 28 …… Rotary shaft 29 , 30 …… Sensing member 31, 32 …… Switch 100 …… Bucket body 101 …… Housing 102 …… Tension spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuro Shigetomi, 2 Sanbancho, Chiyoda-ku, Tokyo Inside Tobishima Construction Co., Ltd. (56) References JP-A-60-158086 (JP, A)

Claims (1)

[Claims] 1. An automatic supply control device for opening and closing air in an opening and closing device for a concrete bucket which is suspended by a cable crane and can be opened and closed by a predetermined operation, wherein a side surface of the concrete bucket communicates with an internal air tank. An air inlet is provided, and an air inlet that engages with the air inlet is provided on the transfer car side that supplies concrete milk into the concrete bucket, and the air inlet is engaged with the air inlet. A control device for automatic supply of opening / closing air in a concrete bucket opening / closing device, which is capable of moving forward / backward, up / down, left / right, and adjusting a directivity angle of an air supply port.