JPS609165B2 - How to place drain material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for placing drain material for improving soft ground.

In general, the stopping depth of the step of cardboard-like drain material is
On average, by ground boring and sounding,
Usually, it is determined for each pouring area.

However, in pouring areas with complex strata, it is often inappropriate to set a uniform pouring depth.

For example, there is a sand layer as a drainage layer near the 7th kite, and the setting is to drain water from two sides, from this layer and a sand mat layer applied to the ground surface, but this could not be determined because the boring survey did not cover the entire pouring area. However, in reality, in a case where the sand layer is 7.5 m deep in a considerable part of the pouring area, the drainage material must be applied uniformly within the pouring area, as set based on the results of a small number of boring surveys. If the construction is stopped, it will take a long time for the ground to improve to the design strength.

On the other hand, if the actual sand layer is around 6.5 and is so hard that further pouring is impossible, problems may arise during acceptance inspection.

In other words, in the design, the grain was pounded only up to 6.5 when seven machines were poured, so this may not be recognized as the production volume, or the grain may be pounded to obtain proof that it really could not be poured. I am now pouring camphor at a depth that is no longer possible.
This may result in wasted time having to depict on the depth recording paper a situation in which no progress has been made in the depth axis direction despite progress in the time axis direction.

In addition, if this sand layer is not hard, the penetration force of the driving machine is large even when it reaches the sand layer, and no resistance is felt, so it has been a waste of driving to an unnecessary length. It's here. In order to correct the above-mentioned unreasonableness, the present invention provides a means to continuously measure the resistance during pouring and numerically capture the change from the layer to be improved with very low resistance to the sand layer with relatively high resistance. The primary objective is to provide a powerful means of construction management.

Furthermore, it is another object of the present invention to automate operation and save labor through the above-described means.

The present invention employs the following means to achieve the above objects.

That is, the first invention provides a penetration cone member that receives penetration resistance at the tip of a drain material casting barrel, and the penetration cone member receives penetration resistance.

A load cell that receives pressure from the lead and emits a signal converts the penetration resistance into an electrical quantity, increases this and displays it on a recorder or meter to detect the drain material placement resistance. This is a method of discussing the drain material that will be switched to the process. The second invention is that in the above method, a certain value is set for the drain material placement resistance value when the penetration resistance is detected by the load cell, and when the drain material placement resistance value reaches that value, a relay, etc. The clutch lever and transmission lever are operated, and the actuator is controlled to reversely move the drain material pouring birch in the direction of pulling out, and when it is detected that the drain material has been pulled out to a predetermined height, the pulling operation is stopped. This is a method of controlling the drain material pouring so as to force the drain material to be placed.

When the method of the present invention is applied to a rail driving type driving machine that is currently widely used, this type of driving machine is usually characterized by being simple and lightweight, and the driving birch uses an open rod. 1 driver, 1 drain material installer, and 2 to 3 other workers, totaling 4 to 5 people. However, the driver can also serve as the drain material installer, which greatly reduces personnel costs. This means that you can save money and automate your driving.

The present invention will be explained below based on the drawings.

Although the embodiment will be described with reference to an open rod type paper drain driving machine, it goes without saying that the present invention can be easily applied to a closed mandrel type machine.

No.! The figure shows a rail-running open rod type paper drain pouring machine, in which a pouring birch holding pool 19 is mounted on a cart 18, and the pouring camphor 12 is driven by a pouring camphor. It is driven by friction rollers 11, 11, 11, 11 to move up and down.

Frixion.

The rollers 11, 11, 11, 11 are driven by sprockets 10, 10, 10, 10 coaxial with these sprockets, and a chain 8 is stretched over these sprockets together with a sprocket 9 as a tightener, which connects the worm gear output shaft. Driven by subrocket 7. The worm gear output shaft is mounted on a worm gear reducer 6, and the worm gear reducer 6 is connected to a transcommission 3 via a shaft droplet 5, and the transmission 3 is connected to a motor 1 mounted on a truck 18 via a clutch 2. It is driven by The clutch 2 is operated by its clutch lever 40, and the transmission 3 is operated by its transmission lever 117 to rotate in forward and reverse directions.
Drain material 141 wrapped around 6 and pulled out from it
It is held in place by a drain shoe 13 at the tip of the pouring birch 12.

In addition, 17 shows the wheel of the trolley|bogie 18. Therefore, when the clutch 2 is engaged by the clutch lever 40, the power from the prime mover 1 is transmitted to the worm gear reducer 6 via the shaft joint 6, and the friction roller 11 is driven by the chain 8 and sprockets 7, 9, 10 to drive the driving. The camphor tree 12 is driven and rotated forward and backward by the transmission lever 117, and the discussion tree 12 moves up and down, and when it descends, the reel 1
Drain material 14 is pulled out from 6 and driven in by a driving shoe 13. When measuring by installing a pickup somewhere in the power transmission system as described above, unless it is attached to the tip of the drain material pouring shoe 13, there will be resistance to the drain material and the poured birch in addition to the resistance penetrating the soil layer. This includes frictional force or viscous resistance when coming into contact with the soil layer, and if it is installed from the prime mover to the friction roller, the loss resistance of the power transmission element will also be included.

That is, in order to measure only the penetration resistance of the soil layer, it is desirable to provide a detection device for measuring the penetration resistance at the portion of the drain material driving shoe 13 that comes into contact with the soil layer first during penetration.

Therefore, the present invention proposes a drain material driving shoe equipped with a load cell for measuring penetration resistance as shown in FIG.

The one shown in FIG. 2 shows a drain material driving shoe 13 attached to the lower end of the pouring birch 12 with a screw 63.
A support tube 52 is attached to both sides of a drain material folding plate 60 that is rigidly attached below a connection socket 61 that is directly attached to the lower end of the discussion birch 12 with a screw 63. is attached with screw 68.

Since the head of the support tube 52 projects downward from the folding plate 60, it also serves to prevent the drain material 14 from shifting laterally during pouring.

The inner wall of the support tube 52 is smaller at the lower part, and a packing 53 is enclosed in the narrow inner wall.
Remove the upper lid 57 from the upper opening of the support tube 52, insert the circular collar 67 with the screw 69 into the inner wall, and insert the rod 64 screwed into the screw 69 from the lower end opening of the support tube 52 into a triangular pyramid shape. A rod 64 is provided in the penetrating cone 51 and the packing 5
3 prevents mud from entering through the lower end opening.

A load cell 56 is enclosed between the upper lid 57 and the circular collar 67, and the load cell 56 is sandwiched between the circular collar 67 and the lower end of the upper lid 57 when the penetration cone 51 is pushed upward.

For example, a sixth strain gauge 55 is attached to the load cell 56.
As shown in the figure, the cone 51 is attached to the whiststone bridge, and the resistance applied to the cone 51 during pouring of the drain material 14 is detected.

In order to take out the signal from the strain gauge 55 described above, the caster 12 is a hollow rod having a small hole 65, and the connection socket 61 has a small hole 62 that fits in with the small hole 65.
The upper part of the folding plate 60 and the support tube 52 and the upper cover 5 are provided.
7 is provided with a hole 59, and the power transmission line 58 is inserted through the small hole.
The power transmission line 58 is taken out from the top of the driving rod 12 to the outside.

At this time, the stray gauge 55 attached to the load cell 56
Using the same resistance values of the four sheets R, = R2: R3 = R4, the output is e = k, parasitic --- E: Young's modulus of the load cell.

: Poisson's ratio S of the load cell: Cross-sectional area of the load cell W: Applied force K: Gauge factor (General Theory of Applied Measurement, Keigaku Publishing, p. 29).

By recording this output on a pen recorder or the like together with depth recording by an encoder or the like, it is possible to know the relationship between depth and resistance. In FIG. 5, 20 is a resistance detection unit/conversion unit consisting of a strain gauge, 21 is an intensifier, 22 is a recorder 80 which also functions as a muter/A/○ conversion device, 23 is a sequence control bag layer, and 24 is a clutch operation. The electromagnetic cylinder 25 is a transmission operation electromagnetic cylinder.

Next, using the output of this penetration resistance, the drain material 1 is automatically
A method for automatically performing pouring and pulling out in step 4 will be described.

The layers targeted for improvement have low resistance unless there are obstacles, whereas in comparison, layers that are not targeted for improvement, such as sand layers, rocky shore layers, and hard viscous layers, have clearly large penetration resistance, and Compare the resistance value of each soil layer by soiling, etc., and when the resistance output exceeds a certain set value that is higher than the resistance value of the improver layer, a signal will be issued, and upon receiving this signal, the discussion will end. This method attempts to automatically enter the drawing process.

However, when performing the normal pouring process, sand mats are often laid on the ground surface in advance, and in this case, the resistance value is clearly higher than that of the improvement layer, and a sandwiching layer with a high resistance value is placed between the improvement layers. In some cases, it may be necessary to punch out this sandwich layer and percusse the lower part.

In cases where sand mats or sandwiched layers are included, it is necessary to prevent signals from being emitted from soil layers with large resistance values other than the stop layer. As a means of this, a depth gauge is used to monitor the depth to the bottom of the sand mat or the bottom of the intermediate sandwich layer, and a value greater than these depths is set, so that the drain material driving shoe 13 reaches this depth during pouring. After issuing a depth setting signal to inform the depth setting signal, the stop layer may be established only after receiving a signal indicating a large resistance value.

Now, if we follow the paper drain pouring work over time, first we move the pouring machine to the pouring point. Next, install the drain material and move on to the pouring work.

To begin this discussion, first depress the clutch lever, then move the transmission lever toward forward rotation, and then release the clutch lever. The discussion operation is thus completed and the driving shoe 13 is lowered. After finishing the pouring work, pouring shoe 1
3, but in this case, depress the clutch lever, then tilt the transmission lever to the reverse direction, and then release the clutch lever. The driving shoe 13 is thus pulled out and stopped at a predetermined position. When the extraction stops, move the pouring machine to the next pouring point. Therefore, the apparatus for carrying out the method of the present invention only needs to operate from the time when the drain material is attached until the time when the withdrawal is stopped.

Therefore, in order to save the labor of the conventional driver, when the driver who installs the drain material presses a switch to issue a signal to start operation when the drain material installation is completed, the pouring Zen 12 will automatically descend into the soil, and on the way. After receiving a signal indicating the set depth from the depth gauge and then receiving a signal indicating that the set depth has been reached from the penetration resistance measuring device installed in the driving shoe 13, the clutch lever is depressed to cause the actuator to reverse the transmission.

In addition, a lamp or buzzer is installed to warn that the depth value on the depth gauge is decreasing as the pouring platform 12 rises due to pulling out, and that pulling out is nearing the end. It is built into the meter so that it can emit a signal. When the concrete is decelerated and the concrete 12 is pulled out, a protrusion, which will be described later, provided on a part of the concrete makes contact with a switch and issues a signal, which causes the actuator to depress the clutch lever and rotate the transmission lever in the forward direction. Let them do it.

Automatically performing the above operations means performing a sequence as shown in FIG. 7.

Next, the relationship between the actuators and switches that perform the above operations will be explained.

In the first stage, the drain material wearer places the drain material 14 into the drain material driving shoe 1.
3, turn on the start switch A shown in FIG.

Then, the clutch 2, which had been disconnected until now, is connected, and the baton 12 begins to penetrate. 0th stage Depth after the sand mat thickness When the drain material driving shoe 13 exceeds the previously set depth, the depth setting switch C shown in Figs. 8 and 9 provided in the depth gauge emits a signal, and the next A memory circuit for actuating the actuator is activated at the m-th stage.

When the m-th stage drain material driving shoe 13 further increases the depth and advances downward, and the penetration cone 51 detects a resistance value greater than a preset value, the meter/A/D converter 8 shown in FIG.
The penetration resistance switch E of 0 is turned on and issues a signal, the clutch 2 is disengaged, and the transmission lever 117 is tilted from the forward rotation side to the reverse rotation side by a mechanism to be described later.

Due to the operation before the W stage, the transmission lever 117 enters the reverse direction and is completely shifted until the bar stops.
Transmission switch D shown in FIG. 1 is turned on.

The clutch 2 is connected again by the signal from this switch, and the transmission 3 is already in reverse rotation, so the pouring cage 12 begins to be pulled out. When the V stage pouring rod 12 rises and the drain material pouring shoe 13 passes the set depth slightly before the end of extraction, the deceleration switch F shown in FIG. 9 provided in the depth gauge is turned on, and this signal is As a result, the warning circuit is energized, and the pilot lamp PA and buzzer BU shown in Fig. 3 issue a warning.

In response to this, the drain material installer releases the throttle and decelerates. Drain material driving shoe 1 attached to the tip of the pouring camphor 12 in the first stage
3 passes through the ground and rises, the annular protrusion 121 shown in FIG.
Touch the roller 122 at the tip of 25 and press the return switch G.
is activated.

The clutch 2 is disengaged by the signal from the return switch G, and the transmission lever 117 is tilted toward the forward rotation side, or the clutch 2 is disengaged and released, so the pouring camphor 12 does not move.

Also, upon receiving this signal, the warning circuit is cut off.

Next, the actuator that performs these sequences will be explained.

First, regarding the clutch electromagnetic cylinder, in FIG. 12, 2 is the clutch shown in FIG.
When pushed in the direction of the hour hand in Fig. 12, the transmission from the input side transmission shaft 4a to the output side transmission shaft 4b is cut off by a clutch (not shown) inside the casing, and when pulled in the opposite direction, the transmission shaft 4a and 4
It is now connected to b.

The lever 112 is configured in a V-shape, and its bent portion is pivoted to the bracket 113 by a pin 114, and the tip of the lever 112 is connected to the piston 106 of the electromagnetic cylinder 106.
It is connected to the tip of a.

Reference numeral 115 shown in FIG. 12 is a push spring that biases the lever 112 in the clutch disengagement direction. Since the electromagnetic cylinder 106 pulls the piston when energized, the transmission shafts 4a and 4b
is connected, and when the current is turned off, the spring 112 becomes the push spring 1.
It returns at 16 and the clutch disengages.

Next, regarding the electromagnetic cylinder for transmission, the first
In Figure 1, 3 is the transmission shown in Figure 1;
17 is a transmission operating lever, and 145 is a push spring suspended between the bracket 27 and the transmission operating lever 117.

The rotation direction of the transmission bag 4b on the input side of the transmission 3 and the transmission shaft 4c of the output shaft are made the same.

During forward rotation, the lever 117 is pushed toward the forward rotation side by a push spring 145, but during reverse rotation, the electromagnetic cylinder I07 is energized, the piston 107a is pushed out, and the lever 117 is tilted toward the reverse rotation side. Next, regarding the warning signal, the driver, that is, the person installing the drain material, receives the warning signals PA and BU shown in FIG. 13, knows that the end of pulling out the poured birch 12 is approaching, and operates to reduce the pulling speed.
Install a pilot lamp and/or a buzzer near the space for installing drain material.

Next, a description will be given of switches that emit signals for controlling the above-mentioned actuators using the control method described later to cause the sequence shown in FIG. 7 to be performed.

First, regarding the start switch A and the return switch G, the start switch A and the return switch G are arranged as shown in FIG. Since the drain material attacher hooks the drain material 14 to the drain material driving shoe 13 and then pushes it himself, it is necessary to provide it in the work space of the cart 18 where the drain material is attached, and here, a return switch G, which will be described later, is activated. A two-contact push button switch was used to place the lever 125 on the side.

The return switch G issues a signal to end the pulling process, and as shown in Fig. 10, the pouring birch 12 is pulled out and the tip of the drain material pouring shoe 13 leaves the ground surface S and rises slightly above it. It is necessary to operate in the position where it is.

Therefore, a small annular projection 1 is formed slightly above the attachment part of the drain material driving shoe 13 of the pouring camphor 12, that is, an annular projection 1.
21 is provided at the tip of a lever 125, and a roller 122 that touches the annular protrusion 121 when the caster 12 is pulled out is provided at the tip of a lever 125.
It is supported by 23.

This bracket 128 is attached to a bracket 126 attached to a part of the truck 18 via a length adjusting screw 127.

And the lever 12 on the roller 122 side from the fulcrum pin 123
5 is suspended by a spring 124 having a clevis 134 in the middle so that the length can be adjusted.

Further, a notch 125a is provided at the end of the lever 125 opposite to the roller 122 side, and a small lever 131 pivotally supported by a pin 135 is provided near this notch 125a and projects from the lever body. The protrusion 125b and the lever 131 are connected by a bolt 132, and a nut 132 that also serves as a stopper is screwed onto the bolt 132.
The position of the lever 131 can be adjusted with a.

Furthermore, the protruding portion 125b and the push spring 131 are not the same as the push spring 133.
This connects the lever 131 to the nut 132a.
It is configured to be pressed against the When the casting camphor 12 is pulled up and reaches a predetermined position, the annular protrusion 121 touches the roller 122, and the lever 125 rotates in the direction of the hour hand in the diagram. A return switch G is provided on a bracket 129 attached to the trolley 18 so that it can be turned on by touching it.

This return switch G uses a three-contact limit switch.

The operating position is adjusted using a clevis 134, a screw 127, and a nut 132a.

Next, referring to the depth setting switch C and the deceleration switch F', these are shown in FIGS. 8 and 9.

The depth setting switch C is used to set the conditions for pulling out when the concrete has been poured to a predetermined depth or above.The depth setting switch C and the deceleration switch F, which warns when the end of pulling is approaching, are related to the depth. Therefore, this switch can be converted into an electrical signal by an encoder or the like normally installed in a pouring machine, or it can be incorporated into a pen coder that mechanically moves in a straight line with a screw.Here, we will explain one example. If a depth gauge is not used, it is also possible to attach a wire rope near the top of the poured birch 12 and utilize its movement.

FIG. 8 shows an example in which a depth setting switch C and a deceleration switch F are incorporated into a pen coder, and FIG. 9 is a partially enlarged view thereof.

That is, the pen 124 is guided by the Ben guide 122.
The pen stand 123 to which the drain material driving shoe 13 is attached moves to the right when pouring to increase the depth, and to the left when pulling out to decrease the depth, corresponding to the depth position of the drain material pouring shoe 13. The movement is recorded on a chart paper 121 that is moved downward in the figure by a paper feed motor (not shown).

Since the depth setting signal must be issued only when placing, and the deceleration signal must be issued only when pulling out, it is necessary to make sure that the pen 124 catches only one of the left and right movements.

When the pen 124 is attached to the pen stand 123, there is a protrusion 2 on the opposite side.
Set 8.

A somewhat medium-sized mounting base 126 is provided parallel to the pen guide 122 on the opposite side of the pen 124.

A lever 29 is provided on the magnet plate 36 that can be mounted on the mounting base 126 so as to be rotatable about the pin 30. 123 is attached on the opposite side.

Further, when the pen stand 123 placed on the mounting stand 126 moves from right to left in the drawing, that is, when the pen stand 123 is pulled out to reduce the depth, the protrusion 28 is arranged so as to touch the tip of the lever 29.
The lever tip begins to touch at position C shown by the dotted line and moves to the left against the push spring 31, and the other end of the lever touches the lever of the microswitch F provided on the magnet plate 36 at the position shown by the solid line. A switch unit 37 is provided so that the protrusion 28 separates from the lever end when the pen stand 123 moves to the left. The switch unit 37
Mounting base 1 is positioned so that a predetermined deceleration alarm can be issued at the operating point where switch F is turned on.
If 26 is attached using magnetic force, this switch F will become a deceleration switch.

If the length from the end of the magnet plate 36 to the operating point of the switch F is determined in advance, and a scale corresponding to the depth scale on the chart line is marked on the magnet plate 36, the end of the magnet plate can be set at a predetermined depth L. All you have to do is match the part to the L-side.

When the movement of the pen stand 123 is reversed from left to right, the end of the lever 29 and the protrusion 28 come into contact at position A, and as the lever 29 tilts to the left, the other end of the bar moves away from switch F and protrudes at position C. 28, so switch F will not operate.

The depth setting switch C is the deceleration switch unit 3 described above.
It may be provided in a unit 38 that is bilaterally symmetrical to 7.

In the figure, 32 is a magnet plate, 33 is a bar, and 34 is a pin.

Then, the end of the depth setting unit 38 is attached so as to be aligned with L'.

Next, the penetration resistance switch E will be described.

As mentioned above, the penetration resistance switch E is shown in FIG.
112 is a switch that energizes the clutch electromagnetic cylinder 106 and cuts off the power between the transmission shafts 4a and 4b. As shown in FIG. 6, this penetration resistance switch E is incorporated in a meter/A/D converter, that is, a voltmeter 80, and a proximal body 82 of a pointer 81 operates the switch E. In Fig. 6, 84 is a battery, 85 is a sliding low resistance device, and the above-mentioned meter/A/○ conversion device is the fifth one.
As described above, it is installed between the intensifier 21 shown in the figure and the sequence control device 23. The penetration cone 51 incorporated into the drain material driving shoe 13 as described above
The penetration resistance value detected through the load cell 56 is extracted as a voltage as shown in Figure 5 by the bridge that constitutes the strain gauge 55 attached to the load cell 56. The voltage is increased by the intermediate device 21, and it is recorded and the voltmeter 80
'Enter this.

Then, by using a two-pen type recorder 22 and inserting the depth into one pen and the penetration resistance into the other pen, the depth and low resistance can be compared, and the data can be displayed like a log diagram for each pour. This is convenient.

-Also, as mentioned above, if the proximity body 82 is attached to the back side of the pointer 81 of the voltmeter 80, and a proximity switch is installed on the dial or cut out of the dial to detect the approach of the proximity body, this can be used as the penetration resistance switch E. In this way, by inserting a sliding resistor 85 on the input side, the operating voltage, that is, the operating resistance force can be easily adjusted.

Next, the transmission switch D will be explained.
The transmission switch D is shown in FIG. 11, and upon receiving the signal from the penetration resistance switch E, the clutch 2 is disengaged and the transmission 3 is switched to the reverse direction.
If this continues, the power will still be cut off by the clutch, so the 12th
The transmission switch ○ is a switch that energizes the clutch electromagnetic cylinder 06 shown in the figure and issues a signal to reconnect the clutch.

As shown in FIG. 11, a lever 142 is rotatably attached to the upper part of the lever 117 for operating the transmission 3 with a pin 146.
is installed, and the downward rotation of this lever 142 is controlled by lever 1.
In addition, a push spring 143 is stretched between the lever 117 and the bar 142, so that the lever 142 is constantly pressed against the stopper 142.
44 so that it can be pressed. When the lever 117 falls forward, that is, from the left side in the figure to the reverse side, that is, to the right side in the figure, the lever 142 rotates while being pressed against the stopper 144, and its tip 142a pushes up the tip 138a of the lever 138. .

The lever 138 is rotatably attached to the bracket 140' fixed to the trolley 18 with a pivot 141, and this rotation is controlled by a spring 1.
It is suspended from a bracket 140 so as to be restrained at 39. "The other end 138 of the lever 138
The tip part 138a of b is lowered downward by being pushed up by the lever 142, and this touches the lever of the micro switch D attached to the bracket 137 which is separately provided on the trolley 18, and issues a signal, causing the lever 138
The distal end 138a of is separated from the distal end 142a of the chopper bar 142.

Conversely, when the lever 117 of the transmission 3 falls from the reverse rotation side to the forward rotation side, the tips 138a and 142a touch each other, but the tip 142a due to the rotational force of the spring 143
The reaction force at the tip 138a of the rotational force by the spring '39
If the reaction force is made smaller than the reaction force at the tip 14,
2a is pushed by the tip 138a and lever 142 is moved to lever 1.
38 will not activate the switch ○.

The switch D that operates as described above is used as a transmission switch.

Next, a control circuit for causing the actuator to perform the sequence shown in FIG. 7 using the switches described above will be explained with reference to FIG. 13. In Figure 13,
If the solenoid of the clutch electromagnetic cylinder 106 is CL, and the solenoid of the transmission electromagnetic cylinder 107 is (TM), then the buzzer (BU) and pilot lamp (PA) are operated by the AC circuit V-V'; The controlling relays - R., R2, R3, R4, R5 are actuated by a DC circuit V, - V,' and each relay has two solenoids, and once one solenoid is energized, the control contacts is structured so that it falls to one side and does not switch to other contacts until the other solenoids are energized.Also, relays R, R4 and R5 have two contacts in one set, and relay R
2 and R3 each have three sets of two contacts.

Now, the operation of the control circuit as described above will be explained by dividing it into each control step of the sequence shown in FIG. 7. 1 First stage (after the start switch is turned on and before the depth setting switch is turned on) When the start switch A is turned on, relay R is energized and magnetized to the SOL, side, and the contact that was previously connected to the S, -2 side is is S. The clutch electromagnetic cylinder (CL) is energized and the clutch 2 shown in FIG. 12 is connected.

On the other hand, relay R3 using the other contact of starting switch A
S3-. ,S3
The contacts that had fallen on the -3 and S3-5 sides are now S3-2, respectively.
, changes to S3-4, S3-6 side.

Relays R2, R4, and R5 remain in their previous contact state, and the buzzer (BU) and pilot lamp (PA) circuits are cut off.

Then, since the solenoid (TM) of the transmission electromagnetic cylinder 107 is not energized and is on the forward rotation side, driving is started.

(b) Stage D (after the depth setting switch is turned on and before the penetration resistance switch is turned on) When a certain depth is reached, the depth setting switch C is turned on, and the steps S2-2 and S2-
4. It may have fallen to the S2-6 side and the R2 contact is S2-
,,Switch to Cape S, S2-5 side.

Although the contacts of relay R2 are connected in series with the contacts of relay R3, they are not connected to any actuator circuit other than the circuit of relay R2, so there is no change in the function of the actuator.

However, the next time relay R3 operates, the actuator will memorize the change in operation.

m The m-th stage (after the penetration resistance switch is turned on and before the transmission switch is activated) Since the penetration resistance switch E is turned on, the contact point of relay R3 is set to S8-. ,S3-3,
It falls to the S3-5 side, thereby energizing one line V' → contact S3-, → contact S2-, → solenoid (CL) of the clutch electromagnetic cylinder → line V, and the clutch is disengaged.

Also, since the line V', → contact S3-3 → contact S2-8 → solenoid SOL of relay R → line V, is energized, the contact of relay R falls to the Sr2 side.

Furthermore, line V, → contact S lung → contact S2-5 → relay R4
The solenoid SOL2 → line V' is energized, so the contact of relay R4 falls to the S4-2 side, and the line V' → contact S4-2 → transmission electromagnetic cylinder solenoid (TM) → line V is energized. The transmission lever 117 falls to the reverse rotation side. Relay R2, R5
remains at the previous stage, so the buzzer (BU) pilot lamp (
The circuit to PA) is not energized.

N When the transmission lever 117 falls to the reverse direction in the previous stage (after the transmission switch is turned on and before the deceleration switch is turned on), the transmission switch D is turned on as shown in Fig. 11, and the solenoid SOL of relay R2 is energized. Contact points are S2-2, S2
-4, the circuit is switched to the S2-6 side and the circuit controlled by relay R2 is opened and energization is stopped.

At the same time, the other contact circuit of the transmission switch D is closed, the contact of the relay R is switched to S, -, and the solenoid (CL) of the clutch electromagnetic cylinder 106 is closed.
) is energized and the clutch 2 is engaged and pulled out.

V Stage V (return switch ON after deceleration switch ON)
Previously) When the deceleration switch F is turned on, the solenoid SOL of the relay R5 becomes magnetized and switches to the control contact S5-.

Therefore, the pilot lamp (PA) and buzzer (BU) circuits are energized and issue a warning signal.

Although not shown here, the ON “O” of this circuit
It is also possible to perform automatic deceleration by switching the throttle lever of the engine using a motor or cylinder in response to FF. The other circuits are the same as in the previous stage, and the speed is reduced by the driver's manual to continue extraction.

W Second stage (start switch ON after return switch ON)
Previously) When the removal is completed, the return switch G is automatically turned to O.
If N, the solenoid SOL2 of the relay R is magnetized and the contact is switched to S, -2, the energization to the solenoid (CL) of the clutch electromagnetic cylinder 106 is stopped, the clutch 2 is disengaged, and the communication switch 12 is turned off. Movement stops.

Note that even if the clutch is disengaged, the first
The action of the worm gear reducer 6 shown in the figure prevents the pouring sill 12 from moving downwards, but if the reduction ratio is small or if the worm gear reducer 6 is not operated, the worm gear reducer 6 will not move downwards. Activating the actuator to grip 12 is a simple matter.

On the other hand, since the solenoid SOL of relay R4 is magnetized, the contact switches to SH, the energization to the solenoid (TM) of the transmission electromagnetic cylinder 107 is stopped, and the lever 117 is tilted toward the normal rotation side.

However, since the clutch 2 is disengaged, the pouring birch 12 is not driven. The other contact of the return switch G is O.
Since it becomes N, solenoid SOb of relay R5 is energized, the contact switches S to 2, and the pilot lamp (PA
), the buzzer (BU) circuit is opened.

In this state, the cart 18 on which the drain material 14 is cut is moved to the next placement point to perform the next placement. As described in detail above, management by the method of the present invention is an effective means for saving labor and ensuring construction.

In addition, automatic pouring that stops at a fixed depth can be easily performed by replacing the penetration resistance switch E with a depth setting switch that is the same as the depth setting switch attached to the depth gauge at a predetermined position. It is also easy to use them together.

In any case, the present invention provides a penetration cone member that receives penetration resistance at the tip of the drain material pouring birch, and converts the penetration resistance into an electrical quantity using a load cell that receives pressure from the rod of the penetration cone and generates a signal. This is increased and displayed on a recorder or meter to detect the drain material placing resistance and switch from placing work to pulling out work. A certain value is set for the drain material placement resistance value when resistance is detected, and when the drain material placement resistance value reaches that value, the clutch lever and transmission lever are operated by a relay etc. upon receiving the electric signal. It is characterized by controlling an actuator to reversely operate the drain material pouring cassette in the pulling direction, and to stop the pulling operation when it is detected that the drain material has been pulled to a desired height. be. According to the present invention, it is possible to automatically thrash and pull out drain material using the output of penetration resistance, and work can be done according to the condition of the layers, making construction reliable and labor-saving. It has the characteristic that it is very useful.

Brief description of the drawings Figure 1 is a schematic diagram showing the entire paper drain driving machine, Figure 2 is a side view with a part of the drain material driving shoe for detecting penetration resistance cut away, and Figure 3 is the same as above. 4 is a partially omitted plan view of the same as above, FIG. 5 is an automatic operation block diagram, FIG. 6 is a construction diagram of the meter and A/D converter, and FIG. 7 is a sequence diagram of the actuator. Figures 8 and 9 are a plan view and an enlarged view showing the installation state of the depth setting switch unit and deceleration switch unit, Figure 10 is an explanatory diagram of the installation part of the start switch and return switch, and Figure 1
FIG. 1 is an explanatory diagram showing the relative relationship between a transmission switch and a transmission electromagnetic cylinder, FIG. 12 is an explanatory diagram showing a relative relationship between a clutch and a clutch electromagnetic cylinder, and FIG. 13 is a control circuit diagram.

12...Creating camphor, 13...Drain material driving shoe, 14.
...Drain material, 51...Penetration cone, 55...Strain gauge, 56...Load cell, A...
Start switch, C... Depth setting switch, E.
...Penetration resistance switch, D...Transmission switch, F...Deceleration switch, G
...Return switch.

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Claims (1)

[Claims] 1. A penetration cone member that receives penetration resistance is provided at the tip of a rod for placing drain material for improving soft ground, and a load cell that receives pressure from the rod of this penetration cone member and generates a signal converts the penetration resistance into an electric quantity. A drain material placing method characterized in that the drain material placing resistance is detected by changing this to amplified and displayed on a recorder or meter, and switching from the placing process to the pulling process. 2 A penetration cone member that receives penetration resistance is provided at the tip of a drain material casting rod for improving soft ground, and a certain value is determined from the penetration resistance value detected by a load cell that receives pressure from the rod of this penetration cone member. is set, and when the drain material casting resistance value reaches that value, the actuator that receives the electrical signal and operates the clutch lever and transmission lever is controlled by a relay etc. A drain material placing method comprising controlling a drain material placing rod so as to cause the drain material to reversely move in the drawing direction, and to stop the drawing operation when it is detected that the drawing has been carried out to a predetermined height. 3 Set a certain depth, and if the drain material is not driven beyond this depth, the drain material placing rod should be moved in the reverse direction in the withdrawal direction.Even if penetration resistance is output, the drain material placing rod will not be moved in the withdrawal direction. 3. A method for placing drain material according to claim 2, which comprises controlling the drain material placing rod so as not to reversely operate. 4. Claims comprising setting a certain depth, and controlling the drain material casting rod so as to alert the driver that the end of drawing is approaching when the drain material casting rod has been pulled out to this depth. The method for placing drain material according to item 2.