JP2575337B2 - Excavated sediment discharge equipment in a pneumatic caisson - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavated sediment discharging device in a pneumatic caisson, and more particularly, to a new excavated sediment bucket suitable for eliminating a loss time for exchanging an excavated sediment bucket with an empty sediment bucket. The present invention relates to an excavation device for excavated earth and sand in a matic caisson.

[0002]

2. Description of the Related Art Conventionally, when excavating the ground in a caisson work room when manned, two earth and sand buckets have been used, and an operator has replaced the earth and sand bucket in the work room.

However, when excavating the ground in a caisson work chamber in an unmanned caisson excavating operation, there is no worker to replace the earth and sand bucket, so one earth and sand bucket is used, and the excavated earth and sand is put into the bucket and the earth and sand is filled. When this happens, the earth and sand bucket is carried out to a hopper on the ground to discharge the earth, and the emptied earth and sand bucket is carried back into the caisson work room, where the bucket is landed and used.

[0004]

SUMMARY OF THE INVENTION In an unmanned caisson,
Conventionally, there is no suitable method of replacing the earth and sand bucket, and the earth and sand bucket containing excavated earth and sand is carried out from the caisson work room,
After discharging, the empty sediment bucket had to be transported back into the caisson work room and the lifting had to be interrupted until it landed. Therefore, there is a problem that the loss time for exchanging the earth and sand bucket is long.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pneumatic caisson that can eliminate a loss time for exchanging earth and sand buckets and greatly improve excavation work efficiency. An object of the present invention is to provide a sediment discharging device.

Another object of the present invention is to provide a pneumatic that can carry out an empty sediment bucket into and out of a caisson work room and a sediment bucket containing excavated sediment from the caisson work room by remote control with high reliability. An object of the present invention is to provide an excavated earth and sand discharging device in a caisson.

Another object of the present invention is to provide a pneumatic caisson excavating apparatus for excavating earth and soil in a caisson working chamber, which can excavate a ground more safely and efficiently.

It is another object of the present invention to provide an excavated earth and sand discharge device in a pneumatic caisson capable of safely suspending and suspending an earth and sand bucket with a simple structure using a wire.

[0009]

According to the present invention, a wire 42 for raising and lowering a sediment bucket is inserted into the caisson work chamber 2 of a pneumatic caisson from the outside to the inside thereof. A bucket gripping device 43 is attached, and a wire gripping device 21 and a wire moving device 12 for moving the wire gripping device 21 are installed in the caisson work chamber 2 or the collection lock. Thereby, the earth and sand bucket 35 can be guided to a position near the shaft hole 7 ′, and the earth and sand bucket holding device 43 can be guided on the earth and sand bucket 36 by the wire moving device 12 and the wire holding device 21. Caisson work room 2
A monitoring means for monitoring the condition of the earth and sand bucket in the vehicle is provided.
Thus, the wire 42 and the earth and sand bucket holding device 43 are configured to be steerable from outside the caisson work chamber 2.

Further, in order to achieve the above object, the present invention provides an earth and sand bucket 35, 3 in the caisson work chamber 2.
A monitor camera 55 for photographing the state of No. 6 is installed, and at least a control device for the wire holding device 21, the wire moving device 12, the bucket holding device 43 and the monitor TV are installed in a remote control room installed outside the caisson frame 1. Then, the video taken by the monitor camera 55 is projected on a monitor TV, and the wire 42 and the earth / sand bucket gripping device 43 can be remotely controlled by the wire moving device 12 and the wire gripping device 21 according to a command from the control device. It is composed.

Further, in order to achieve the above object, according to the present invention, a cone-shaped bucket lifting device 72 is attached to the end of the wire 42, and a wire storage device 73 is provided at a substantially central portion of the suspension ring 39 of the earth and sand bucket. The wire storage device 73 is provided with a wire storage opening 74 formed from one part of the periphery toward the inside, a cone-shaped storage hole 75 for a bucket lifting device formed inside, and the wire storage device 73. Wire stopper 76 for opening and closing opening 74
Are provided.

[0012]

According to the present invention, the sediment bucket holding device 43 attached to the end of the wire 42 inserted from the outside to the inside of the caisson working chamber 2 of the pneumatic caisson and the caisson working chamber 2 or the collection lock are installed. The apparatus includes a wire moving device 12 and a wire gripping device 21 and monitoring means for monitoring the state of the earth and sand bucket in the caisson work chamber 2.

Therefore, the monitoring means monitors the earth and sand bucket 36 in the caisson work chamber 2 containing the excavated earth and sand, and before the earth and sand bucket 36 becomes full, the caisson work chamber 2 is emptied from outside to inside. The earth and sand bucket 35 is carried in. Then, the wire 42 is gripped by the wire gripping device 21, and the empty earth and sand bucket 35 is moved to a position on a plane coordinate suitable for putting earth and sand into the empty soil bucket 35 by cooperation of the wire gripping device 21 and the wire moving device 12. Guiding, pulling down the empty earth and sand bucket 35 via the wire 42,
Place it on the ground. Here, the earth and sand bucket holding device 4
3 releases the gripping of the empty earth and sand bucket 35. And
Based on the monitoring result from the monitoring means that the sediment bucket 36 containing the excavated sediment is full, the sediment bucket gripping device 43 is excavated by the cooperation of the wire moving device 12 and the wire gripping device 21. The sediment bucket 36 into which the excavated earth and sand is put is moved by the earth and sand bucket holding device 43 by moving the sediment bucket 36 into which the inserted earth and sand bucket 36 can be gripped.
6 is gripped. Next, the wire 42 is released from the wire gripping device 21, and the wire moving device 12 is moved out of the shaft hole 7 '. Thereafter, the earth and sand bucket 36 is carried out from the caisson work chamber 2 by the wire 42, and is lifted to the earth discharging position to perform earth discharging. While carrying out the earth and sand bucket 36 containing the excavated earth and sand, the caisson work chamber 2
The excavated earth G is excavated, and the excavated earth and sand is carried into the caisson work chamber 2 and is put into an empty earth and sand bucket 35 having landed thereon, and the excavation work is continuously performed.

As described above, according to the present invention, the time for exchanging earth and sand buckets in a pneumatic caisson can be eliminated, and the efficiency of excavating the ground G in the caisson working chamber 2 can be greatly increased.

In the present invention, a monitor camera 55 for photographing the state of the earth and sand buckets 35 and 36 in the caisson work room 2 is installed, and at least the wire gripping device 21 is installed in a remote control room installed outside the caisson frame 1. , A wire moving device 12, a control device for the bucket gripping device 43, and a monitor TV. An image taken by the monitor camera 55 is displayed on the monitor TV, and the wire moving device 12 is connected to the wire by a command from the control device. The gripping device 21 allows the wire 42 and the earth and sand bucket gripping device 43
Is operated so as to be able to be remotely operated, so that the operation for carrying the empty earth and sand bucket 35 into the caisson work chamber 2 can be controlled,
The maneuver for carrying out the earth and sand bucket 36 containing the excavated earth and sand can be remotely controlled with high reliability.

Further, in the present invention, at the end of the wire 42,
A cone-shaped bucket lifting device 72 is attached, and the wire storage device 7 is mounted substantially at the center of the suspension ring 39 of the earth and sand bucket.
3 is installed. Then, the wire storage device 73
Are provided with an opening 74 for wire storage, a storage hole 75 for a bucket lifter, and a wire detachment stop 76.

The empty earth and sand bucket 35 is guided to the landing point by the wire moving device 12 and the wire gripping device 21. After the empty earth and sand bucket 35 has landed, the overhead traveling excavator 11 opens the wire stopper 76 of the wire storage device 73 attached to the suspension ring 39 of the earth and sand bucket, and separates the earth and sand bucket 35 from the wire 42. .

Next, the bucket lifting device 72 is moved by the wire moving device 12 so that the bucket 3 is filled with the excavated earth and sand.
6, the wire 42 is inserted into the wire storage device 73 through the wire storage opening 74 provided in the wire storage device 73 and stored. After the storage is confirmed, the wire traveling stopper 76 provided in the wire storage device 73 is closed by the overhead traveling excavator 11. Then, the wire moving device 1
Move 2 to the evacuation point.

Then, when the wire 42 is wound up by a crane or the like and the earth and sand bucket 36 containing the excavated earth and sand is lifted, the earth and sand bucket 36 is inserted into a cone-shaped storage hole 75 provided in the wire storage device 73, and the cone The bucket lifter 72 formed in the shape of is housed, and is pulled up from the caisson work room 2 to the ground in a state where the wire 42 is hung so as not to come off by the wire detachment stopper 76. Thereafter, the earth and sand in the earth and sand bucket 36 is dropped into a hopper or the like on the ground and disposed.

As described above, according to the present invention, the earth and sand bucket can be safely suspended and lifted.

[0021]

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

1 to 11 show a first embodiment of the present invention.

First, as shown in FIG. 1, a pneumatic caisson according to this embodiment for applying the present invention has a caisson body 1, a caisson working chamber 2 formed under the caisson body 1, and a working chamber. Slab 3 and Material Rock 4
, A shaft 5, a lower lock 6, and an anchoring 7. In FIG. 1, reference numeral 8 denotes a lock tender.

A pair of first traveling rails 9 and a pair of second traveling rails 10 are attached to the lower surface of the work chamber slab 3. The first traveling rail 9
As shown in FIG. 1, is formed in a concentric ring shape and is laid closer to the outside than the center of the lower surface of the working chamber slab 3. The second travel rail 10 is shown in FIGS.
As shown in the figure, the anchoring member 7 is laid long in the front-rear direction YY 'on the plane coordinates with the anchoring 7 interposed therebetween.

An overhead traveling type excavator 11 is suspended from the first traveling rail 9 as shown in FIG. on the other hand,
On the second traveling rail 10, a wire moving device 12 of an excavated earth and sand discharging device is suspended.

By the way, in the first embodiment of the excavated earth and sand discharging device in the pneumatic caisson of the present invention, as shown in FIG. 1, a wire moving device 12 suspended on the second traveling rail 10 and mounted on the same. Wire holding device 21
And sediment buckets 35 and 36, a sediment bucket gripping device 43 attached to the end of a wire 42 that moves up and down between the ground part and the inside of the caisson work chamber 2, and a monitor installed in the lower lock 6 of the pneumatic caisson A monitor camera 55 as a means, a remote control room (not shown) installed outside the caisson frame 1, and a wire moving device 12, a wire gripping device 21, and a bucket gripping device 43 provided in the remote control room. It comprises a control device and a monitor TV (both not shown).

As shown in FIGS. 2, 3 and 4, the wire moving device 12 includes a pair of second traveling rails 10 as shown in FIG.
And a traveling drive device 16 for the girder 13. The girder 13
In this embodiment, as shown in FIG. 3, is formed of an I-beam. An inner roller 14 and an outer roller 15 are provided at both ends of the girder 13 in the horizontal direction XX ′ on the plane coordinates.
4 and the outer roller 15 are disposed inside and outside the second running rail 10, and the girder 13 is connected to the second running rail 1 via a pair of the inner roller 14 and the outer roller 15.
It is mounted so as to be able to run in the front-rear direction YY 'along 0. The traveling drive device 16 of the girder 13 is shown in FIGS.
As shown in the figure, the girder 13 is disposed on one end side in the left-right direction XX ′. The traveling drive device 16 of the girder 13 includes a motor 17, a driving sprocket wheel 18 connected thereto, and a driven sprocket wheel 1 that is axially supported at a predetermined distance in the front-rear direction YY ′.
9 and a chain 20 bridged between the driving and driven sprocket wheels 18 and 19 and connected to the end of the girder 13. The girder 13 can be moved in any direction in the front-rear direction YY '. It can be moved to the position.

The wire gripping device 21 is shown in FIGS.
As shown in FIG. 6, the traveling body 22 and its front-back direction Y-
It comprises a wire gripper 26 attached to both ends of Y ′ and a traveling drive device 30 for the traveling body 22. As shown in FIG. 6, the traveling body 22 includes a roller 24 in contact with the upper surface of the upper flange of the girder 13 and a roller 25 supported by the roller bracket 23 and in contact with both sides of the web of the girder 13. It is mounted so as to be able to travel in the left-right direction XX ′ along the girder 13. As shown in FIGS. 2, 5 and 6, the wire gripping portions 26 are provided at each end of the traveling body 22 in the front-rear direction YY ′. Each of the wire gripping portions 26 is configured to include a fixing metal fitting 28 formed in a key shape and a rod 29 which is inserted into a cylinder 27 and is provided so as to be able to protrude and retract by a solenoid (not shown). As shown in FIG. 5, the wire 42 is received and held in a space surrounded by the fixing bracket 28 and the rod 29 so that the wire 42 can be released when the rod 29 is immersed. Has become. As shown in FIGS. 2 and 3, the traveling drive device 30 is provided on one end face side of the girder 13 in the front-rear direction YY ′. In addition, the traveling drive device 30
Is a motor, a driving sprocket wheel 32 connected thereto, a driven sprocket wheel 33 pivotally supported between the driving sprocket wheel 32 at a predetermined distance in the left-right direction XX ′, Traveling between the driven two sprocket wheels 32 and 33 and the traveling body 2
2 and a chain 34 connected to a roller bracket 23 attached to the roller 2, so that the traveling body 22 can be moved to any position in the left-right direction XX 'along the girder 13. ing.

In this embodiment, among the earth and sand buckets 35 and 36, an empty earth and sand bucket is indicated by reference numeral 35, and an earth and sand bucket containing excavated earth and sand is indicated by reference numeral 36. As shown in FIGS. 7 and 8, the earth and sand buckets 35 and 36 include a suspension ring 39 and a stopper 41 of the suspension ring 39. The suspension ring 39 includes a bracket 37 diametrically attached at the upper ends of the earth and sand buckets 35 and 36.
Is rotatably mounted via a pin 38. Further, a concave portion 40 for accommodating a rod of the earth and sand bucket gripping device 43 described later is provided in a central portion inside the suspension ring 39. The stopper 41 holds the suspension ring 39 substantially upright when the earth and sand buckets 35 and 36 are pulled up or down. In this embodiment, the work of pulling down the suspension ring 39 of the empty earth and sand bucket 35 brought into the caisson work chamber 2 and lifting the suspension ring 39 of the earth and sand bucket 36 containing the excavated earth and sand are performed by the above-mentioned overhead traveling type. This is performed using the bucket of the excavator 11.

The earth and sand bucket holding device 43 is attached to the lower end of the wire 42. The wire 42
As can be seen from FIG. 1, the material is fed out of the ground portion through the interior of the material lock 4, the shaft 5 and the lower lock 6 into the caisson work chamber 2, and from the caisson work chamber 2 through the interior of each of the above-mentioned portions, To be raised. As shown in FIGS. 9 to 11, the earth and sand bucket gripping device 43 is integrally formed between first and second blocks 44 and 45 having slopes on the inside and upper end portions of the first and second blocks 44 and 45. An attached wire stopper 46;
Cylinder 48 and rod 49 provided in first block 44, rod insertion hole 50 provided in second block 45, battery 51 incorporated in second block 45, and assembled in first block 44 And a solenoid 53 provided around the cylinder 48 and a return spring 54 provided inside the cylinder 48. The earth and sand bucket holding device 43 is connected to the lower end of the wire 42 via the wire stopper 46. The first and second blocks 4
The first and second blocks 44, 45 are arranged opposite to each other with the slopes facing inward, and are integrally connected by the wire stopper 46, and a suspension ring 39 of the earth and sand buckets 35, 36 is provided between the first and second blocks 44, 45. Is formed. The rod 49 is inserted into the cylinder 48, and is inserted into the space 47 from the immersed state.
When the suspension ring 39 of 36 is inserted, the battery 51 is operated by the radio control device 52, the solenoid 53 is excited by the battery 51, and is advanced and urged by the solenoid 53 to advance toward the rod insertion hole 50. The suspension ring 39 is configured to be gripped. And
The rod 49 is retracted into the cylinder 48 by the return spring 54 when the solenoid 53 is demagnetized.

The monitor camera 55, which is the monitoring means,
As shown in FIG. 1, the earth and sand bucket 3 in the caisson work chamber 2 is installed in the lower lock 6 through a shaft hole 7 '.
5, 36 states are photographed, and the images are displayed on a monitor TV provided in a remote control room.

The operator in the remote control room, while observing the monitor TV, controls the girder traveling drive device 16 of the wire moving device 12, the wire driving device 16, A traveling drive unit 30 for the traveling body of the device 21, an overhead traveling excavator 11 that excavates the ground G in the caisson work chamber 2 and also operates the suspension ring 39 of the earth and sand buckets 35 and 36. A solenoid for the rod of the wire holding portion 26 of the wire holding device 21, a radio control device 52 of the earth and sand bucket holding device 43,
It is configured so that a command can be transmitted to a winding / unwinding device (not shown) of the wire 42.

Next, the operation of the first embodiment in the excavated earth and sand discharging apparatus having the above-described configuration will be described.

The overhead traveling excavator 11 installed in the caisson work room 2 is operated by the remote control room installed outside the caisson frame 1 to excavate the ground G, and the excavated earth and sand is poured into the earth and sand bucket 36. Put in.

These work conditions are photographed by a monitor camera 55 installed in the lower lock 6, and the images are displayed on a monitor TV provided in the remote control room. While observing the projected image, a command is sent to each unit through the control device, and control is performed as follows.

First, before the earth and sand bucket 36 in the caisson work chamber 2 is full, the empty earth and sand bucket 35 is gripped by the earth and sand bucket gripping device 43 attached to the lower end of the wire 42, and the caisson work chamber 2 Carry in. To grip the earth and sand bucket 35 by the earth and sand bucket gripping device 43, the rod 49 of the earth and sand bucket gripping device 43 shown in FIGS. 9 to 11 is immersed in the cylinder 48, and is inserted between the first and second blocks 44 and 45. The formed suspension ring receiving space 47 is left open. Meanwhile, earth and sand bucket 3
5 is lifted and raised, and then the hanging ring 39 is placed in the space 47 between the first and second blocks 44 and 45.
Put in. Next, electric power is transmitted from the battery 51 to the solenoid 53 by the radio control device 52,
3, the solenoid 49 causes the rod 49 to advance toward the opposite rod insertion hole 50. As shown in FIG. 9, the space 47 is closed by the rod 49, and the suspension ring 39 of the earth and sand bucket 35 is gripped. I do. At this time, even if the earth and sand bucket 35 is lifted casually, the earth and sand bucket gripping device 43 automatically moves to the center of the hanging ring 39 along the inner surface of the hanging ring 39 of the earth and sand bucket 35 as can be seen from FIG. Then, the rod 49 of the earth and sand bucket gripping device 43 is engaged with the rod storage recess 40 provided on the suspension ring 39, and the earth and sand bucket 35 is gripped in a stable state.

As described above, the earth and sand bucket holding device 43
After gripping the earth and sand bucket 35 with the material lock 4, the material lock 4, the shaft 5, the lower lock 6, and the anchoring 7 as shown in FIG.
And inserted into the caisson work chamber 2.

Further, the rod 29 of the wire holding portion 26 of the wire holding device 21 is immersed, and the girder of the wire moving device 12 is opened in a state where the wire 42 is opened so that the wire 42 can be inserted from the space between the fixing bracket 28 and the rod 29. The girder 13 on which the traveling body 22 of the wire gripping device 21 is mounted is moved in the front-rear direction YY ′ along the second traveling rail 10 so that the traveling body 22 42
Closer to the location where is passing. In addition, the traveling driving device 30 for the traveling body of the wire gripping device 21 is driven, and the traveling body 2 is driven.
2 is moved in the left-right direction XX ′, and the position of the space between the fixing bracket 28 and the rod 29 of the wire gripper 26 is aligned with the wire 42, the wire 42 is inserted into this space, and the solenoid of the wire gripper 26 is used. The rod 29 of the wire gripper 26 is protruded to close the space, and the wire 42 is gripped in the wire gripper 26.

Then, the girder 13 is moved in the front-rear direction Y-
Y ′, thereby guiding the earth and sand bucket 35 to an arbitrary position in the front-rear direction YY ′ in the caisson work chamber 2 via the traveling body 22, the wire holding portion 26, and the wire 42 of the wire holding device 21. Then, the traveling body 22 is driven by the traveling driving device 30 for the traveling body of the wire gripping device 21.
Is moved in the left-right direction XX ′, whereby the earth and sand bucket 35 is guided to an arbitrary position in the left-right direction XX ′ in the caisson work chamber 2 via the wire holding portion 26 and the wire 42, and the wire 42 is moved. Then, the empty earth and sand bucket 35 is pulled down to a position suitable for receiving the excavated earth and sand, and is settled and settled.

After the empty earth and sand bucket 35 has been landed and installed, the solenoid 53 is demagnetized by the radio control device 52 of the earth and sand bucket holding device 43. As a result, the rod 49 of the earth and sand bucket holding device 43 is immersed in the cylinder 48 by the return spring 54, and the space 47 for receiving the suspension ring is opened. After the space 47 is opened, the wire 42 is slightly pulled up, and the earth / sand bucket gripping device 43 is removed from the suspension ring 39 of the earth / sand bucket 35.

After the empty earth and sand bucket 35 is carried into the caisson work chamber 2 as described above, the suspension ring 39 of the earth and sand bucket 35 is pulled down by the bucket of the overhead traveling excavator 11,
Do not get in the way when putting excavated earth and sand. Further, the suspension ring 39 of the earth and sand bucket 36 containing the excavated earth and sand is lifted by the bucket of the overhead traveling type excavator 11,
Space 4 for receiving the suspension ring of the earth and sand bucket holding device 43
Set it so that it goes smoothly into 7.

Subsequently, the traveling drive unit 16 for the girder of the wire moving unit 12 and the traveling drive unit 30 for the traveling body of the wire gripping unit 21 are driven, and the wire gripping unit 26 is moved through the interlocking of the above-described units. The space 47 for receiving the suspension ring of the sediment bucket gripping device 43 in the open state is positioned close to the upper part of the suspension ring 39 of the sediment bucket 36 containing the excavated sediment. The hanging ring 39 is put in the space 47, the space 47 is closed, and the wire 42 is slightly lifted. As a result, in this embodiment, as shown in FIG. 11, the earth and sand bucket gripping device 4 is inserted into the concave portion 40 formed in the central portion on the inner surface side of the suspension ring 39.
The third rod 49 is automatically inserted to stably hold the earth and sand bucket 36. After that, the rod 29 is immersed by the solenoid of the wire holding portion 26 of the wire holding device 21,
The space between the fixing bracket 28 and the rod 29 is opened, and the wire 42
After removing the wire, the wire moving device 12 is moved out of the shaft hole 7 ', the wire 42 is pulled up, and the earth and sand bucket 36 containing the excavated earth and sand is pulled up to the upper part of the hopper on the ground.
Excavate.

The earth and sand bucket 36 containing the excavated earth and sand is carried out of the caisson work chamber 2 and, at the same time, the ground G is again excavated by the overhead traveling excavator 11 and the excavated earth and sand is put into a new earth and sand bucket 35. Continue excavation.

By the above operation, the loss time for exchanging the earth and sand bucket can be eliminated, and the excavation work efficiency can be greatly improved. Further, not only the operation of the overhead traveling excavator 11 but also the work of exchanging earth and sand buckets can be remotely controlled through a control device installed in a remote control room.

In the first embodiment, the wire holding portion 26 of the wire holding device 21 is not necessarily
Need not be provided at both ends in the front-rear direction YY ', but may be provided only at one end in the front-rear direction YY'.

Next, FIGS. 12 to 14 show a second embodiment of the present invention.

The second embodiment shown in these figures corresponds to the first embodiment.
The power source and the operation part of the earth and sand bucket holding device 43 are different from those of the embodiment.

That is, as shown in FIG. 12, the cable 60 is transferred from the material lock 4 to the earth and sand bucket gripping device 43 through the shaft 5, the lower lock 6, and the anchoring 7.
Has been introduced. The cable 60 includes a wire connected to a power supply and a signal wire.

On the other hand, a reel 61 is provided in the material lock 4, and the cable 60 is wound around the reel 61 so as to be able to be fed out.

On the other hand, as shown in FIGS. 13 and 14, a connector 62 is provided on the first block 44 of the earth and sand bucket gripping device 43, and the cable 60 is connected to the connector 62. And the cable 60
Is connected to a solenoid 53 for rod operation via the connector 62.

When the empty earth and sand bucket 35 or the earth and sand bucket 36 containing the excavated earth and sand is gripped, the electric power and the signal line in the cable 60 are applied to the solenoid 53 for operating the rod of the earth and sand bucket gripping device 43. A control signal is sent to excite the solenoid 53 and operate the rod 49 to advance.

Therefore, the battery 51 and the radio control device 52 used in the first embodiment are omitted in the second embodiment because they are unnecessary.

Other configurations and operations of the second embodiment are the same as those of the first embodiment.

In both the first and second embodiments, the monitor camera 55 may be mounted on the caisson work room 2 side of the work room slab 3. Further, a viewing window is provided in the work room slab 3 instead of the monitor camera 55, and a worker monitors the state of the earth and sand buckets 35 and 36 in the caisson work room 2 through the view window, and based on the monitoring result, the remote control room side. Exchange information with
Remote operation may be performed, and the wire moving device 12
And wire gripping device 21 and earth and sand bucket gripping device 43
May be operated outside the caisson work room 2.

Further, both the first and second embodiments have the first and second embodiments.
A connecting rail may be provided between the running rails 9 and 10, and the wire moving device 12 and its attached member may be moved to a position where they do not hinder the excavation of the ground when not in use, and may be put on standby. In this way, the excavation work of the ground G in the caisson work chamber 2 can be performed more safely and efficiently.

Next, FIGS. 15 to 26 show a third embodiment of the present invention.

This third embodiment is an excavated earth and sand discharging apparatus using a caisson excavator recovery system.

First, a remote control room, a crane, and a hopper are installed on the ground, but they are omitted in the drawing.

The remote control room is provided with a driver's seat for an overhead traveling excavator, a control device for a dumping bucket exchange device, and a monitor TV for monitoring the dumping bucket exchange device. Devices and equipment are also omitted in the drawings.

A pair of first traveling rails 9 are laid on the lower surface of the working chamber slab 3. In the caisson work room 2, an overhead traveling excavator 11 is installed. The first traveling rail 9 and the overhead traveling excavator 11 are the same as those in the first embodiment.

In the collection lower lock 71, a monitor camera 55 for monitoring the earth and sand bucket exchange device is installed.
The monitor camera 55 captures the state of the earth and sand buckets 35 and 36 in the caisson work room 2 and sends the image to the monitor TV, and the monitor TV projects the image.

In the collection upper lock 70, a pair of second traveling rails 10, a wire moving device 12, and a wire holding device 21 are installed. The second traveling rail 10, the wire moving device 12, and the wire holding device 21
Is the same as the first embodiment except that the installation location is different.

At the end of the crane wire 42, a cone-shaped bucket lifting device 72 is attached.

A wire storage device 73 is attached to substantially the center of the suspension ring 39 of the earth and sand buckets 35 and 36. As shown in FIGS. 16 to 19, the wire storage device 73 includes a wire storage opening 74 formed from one part of the periphery toward the inside, and a cone-shaped bucket lifter formed inside. A storage hole 75 and a wire detachment stopper 76 for opening and closing the wire storage opening 74 are provided. The wire storage opening 74 and the bucket lifter storage hole 75 communicate with each other so that the crane wire 42 can be inserted from a direction orthogonal to the length direction of the crane wire 42. The wire detachment stopper 76 is formed in a substantially inverted 7-shape, and is opened and closed via its long piece, so that the short piece crosses the wire storing opening 74 and opens and closes this portion.

Next, the operation of the third embodiment will be described.

While watching the monitor TV in the remote control room, the operator operates the wire moving device 12 and the wire holding device 21 through the control device installed in the remote control room, and removes the empty earth and sand bucket 35 from the caisson work room. Lead to the landing point in 2.

After the empty earth and sand bucket 35 has settled, the overhead traveling excavator 11 uses the wire retaining device 73 of the wire storage device 73 attached to the suspension ring 39 of the earth and sand bucket 7.
Release 6. Thereafter, the earth and sand bucket 35 is separated from the crane wire 42.

Next, the bucket lifting device 72 is moved by the wire moving device 12 to excavate the earth and sand bucket 3 containing the earth and sand.
6 and the crane wire 42 is inserted into the wire storage device 73 from the wire storage opening 74 of the wire storage device 73 as shown in FIGS.
To store.

After confirming the storage of the crane wire 42 in the wire storage device 73, the overhead traveling excavator 11 removes the wire detachment stopper 76 provided in the wire storage device 73.
Close as shown in FIGS.

Thereafter, the wire moving device 12 is moved to the shelter.

Next, when the crane wire 42 is hoisted by a crane installed on the ground, as shown in FIGS. 25 and 26, a cone-shaped storage hole 75 provided in the wire storage Of the crane wire 42 is held by the wire release stopper 76 so that the crane wire 42 does not come off.

As the crane wire 42 is further hoisted from this state, the earth and sand bucket 36 containing the excavated earth and sand is transported through the shaft 3 and the material lock 2 to the upper part of the hopper above the ground, and the earth and sand bucket 36 is moved from the earth and sand bucket 36 to the earth and sand. To the hopper.

As can be seen from the above description,
According to the third embodiment, a cone-shaped wire lifting device 73 attached to the end of the crane wire 42, a wire storage opening 74, a cone-shaped storage hole 75 for a bucket lifting device, and a wire detachment stopper 76 are provided. With the wire storage device 73, hanging and lifting of the earth and sand bucket can be performed safely with a simple structure.

[0074]

As described above, according to the first aspect of the present invention,
In the described invention, the wire 42 for raising and lowering the earth and sand bucket is provided from outside to inside of the caisson work chamber 2 of the pneumatic caisson.
And the earth and sand bucket holding device 43 is attached to the end of the wire 42, and the wire holding device 21 and the wire moving device 12 for moving the wire holding device 21 are installed in the caisson work chamber 2, and the wire movement is performed. The earth and sand bucket 35 can be guided to a position near the shaft hole 7 ′ by the device 12 and the wire holding device 21, and the earth and sand bucket holding device 43 is placed on the earth and sand bucket 36 by the wire moving device 12 and the wire holding device 21. A monitoring means for monitoring the state of the earth and sand bucket in the caisson work chamber 2 is provided, and the wire moving device 12 and the wire holding device 21
And the earth and sand bucket gripping device 43 can be steered from the outside of the caisson work chamber 2, and before the earth and sand bucket 36 in the caisson work chamber 2 becomes full, the caisson work is performed by an operation from the outside of the caisson work chamber 2. An empty sediment bucket 35 is carried into the chamber 2 and is installed at a position suitable for receiving excavated sediment, and can be replaced with a sediment bucket 36 containing excavated sediment. Loss time can be eliminated, so that the excavation work efficiency of the ground G in the caisson work chamber 2 can be greatly improved.

Further, according to the second aspect of the present invention,
Earth and sand buckets 35, 3 in the caisson work room 2
A monitor camera 55 for photographing the state of No. 6 is installed, and at least a control device for the wire holding device 21, the wire moving device 12, the bucket holding device 43 and the monitor TV are installed in a remote control room installed outside the caisson frame 1. Then, the video taken by the monitor camera 55 is projected on a monitor TV, and the wire 42 and the earth / sand bucket gripping device 43 can be remotely controlled by the wire moving device 12 and the wire gripping device 21 according to a command from the control device. The empty earth and sand bucket 35 in the caisson work room 2
The operation for carrying in the soil and the operation for carrying out the earth and sand bucket 36 containing the excavated earth and sand have the effect of enabling remote control with high reliability.

Further, in the invention according to claim 3 of the present invention, a cone-shaped bucket lifting device 72 is attached to the end of the wire 42, and the suspension ring 39 of the earth and sand bucket is attached.
A wire storage device 73 is attached to a substantially central portion of the wire storage device 73. The wire storage device 73 is provided with a wire storage opening 74 formed from a part of the circumference toward the inside, and a cone-shaped bucket lifting portion formed therein. Dexterous storage hole 75 and wire detachment stopper 7 for opening and closing the wire storage opening 74
6 has the effect that the earth and sand bucket can be safely suspended and lifted by the wire 42 with a simple structure.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an outline of an entire apparatus according to a first embodiment of the present invention.

FIG. 2 is an enlarged plan view of a second traveling rail, a wire moving device, and a wire holding device in the first embodiment.

FIG. 3 is a view as viewed in the direction of arrows AA in FIG. 2;

FIG. 4 is a front view of FIG. 2;

FIG. 5 is a plan view showing the wire gripping device in the first embodiment further enlarged.

FIG. 6 is a view taken in the direction of arrows BB in FIG. 5;

FIG. 7 is an enlarged front view of the earth and sand bucket.

FIG. 8 is a side view of FIG. 7;

FIG. 9 is an enlarged vertical sectional view of the earth and sand bucket holding device in the first embodiment.

FIG. 10 is a sectional view taken along line CC of FIG. 9;

FIG. 11 is an explanatory diagram of a usage state of the earth and sand bucket holding device.

FIG. 12 is a longitudinal sectional view showing an outline of an entire apparatus according to a second embodiment of the present invention.

FIG. 13 is an enlarged vertical sectional view of the earth and sand bucket holding device in the second embodiment.

FIG. 14 is a sectional view taken along line DD of FIG.

FIG. 15 is a longitudinal sectional view showing an outline of an entire apparatus according to a third embodiment of the present invention.

FIG. 16 is an enlarged front view of the earth and sand bucket in the third embodiment.

FIG. 17 is a plan view of a wire storage device according to a third embodiment.

FIG. 18 is a plan view showing the wire storage device in a further enlarged manner.

FIG. 19 is a front view of FIG. 18;

FIG. 20 is an enlarged front view of a bucket lifter according to a third embodiment.

FIG. 21 is a front view showing a state immediately before inserting a wire into the wire storage device.

FIG. 22 is a plan view of the wire storage device of FIG. 21 and a wire and bucket lifting device.

FIG. 23 is a front view showing a state in which a wire is inserted into the wire storage device and the wire stopper is closed, following FIG. 21;

24 is a plan view of the wire storage device of FIG. 23, a wire and a bucket lifting device.

FIG. 25 is a front view showing a state in which the wire is wound up following FIG. 23 and the bucket lifting device is housed in the wire housing device.

26 is a plan view of the wire storage device of FIG. 25 and a wire and bucket lifting device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Caisson frame 2 Caisson work room 3 Work room slab 7 'Shaft hole 9 1st run rail 10 2nd run rail 11 Ceiling run type excavator 12 Wire moving device 13 Girder of earth and sand bucket guidance device 16 Girder running drive device 21 Wire gripping device 22 Traveling body of wire gripping device 26 Wire gripping portion of wire gripping device 30 Traveling drive device for traveling body 35 Empty earth and sand bucket 36 Earth and sand bucket with excavated earth and sand 39 Hanging ring of earth and sand bucket 42 Wire 43 Earth and sand bucket Gripping device 44, 45 First and second blocks of earth and sand bucket gripping device 49 Same rod 50 Same rod insertion hole 51 Same battery 52 Same radio control device 53 Same solenoid 55 Monitor camera 60 Cable for earth and sand bucket holding device 61 Cable of the same cable Reel 62 Connector of the same cable 7 0 Recovery upper lock 71 Recovery lower lock 72 Bucket lifter 73 Wire storage device 74 Wire storage opening 75 Storage hole for bucket lifter 76 Wire stopper

Claims (3)

(57) [Claims] A wire 42 for raising and lowering a sediment bucket from outside to inside of a caisson work chamber 2 of a pneumatic caisson.
And the earth and sand bucket holding device 43 is attached to the end of the wire 42, and the wire holding device 21 and the wire holding device 21 are inserted into the caisson work chamber 2 or the collection lock.
And the wire moving device 12 and the wire gripping device 21 allow the earth and sand bucket 35 to be guided to a position near the shaft hole 7 ′, and the wire moving device 12 and the wire The holding device 21 can guide the earth and sand bucket holding device 43 on the earth and sand bucket 36, and a monitoring means for monitoring the state of the earth and sand bucket in the caisson work chamber 2 is provided. Device 2
1 wherein the wire 42 and the earth and sand bucket gripping device 43 are configured to be steerable from outside the caisson work chamber 2. 2. A monitor camera 55 for photographing the state of the earth and sand buckets 35 and 36 in the caisson work room 2 is installed, and at least the wire holding device 21 and the wire moving device are installed in a remote control room installed outside the caisson frame 1. Apparatus 1
2, a control device for the bucket gripping device 43 and a monitor TV are provided, and an image captured by the monitor camera 55 is displayed on the monitor TV, and is controlled by the wire moving device 12 and the wire gripping device 21 according to a command from the control device. The excavated earth and sand discharge device in a pneumatic caisson according to claim 1, wherein the wire (42) and the earth and sand bucket holding device (43) are configured to be remotely controllable. 3. A cone-shaped bucket lifting device 7 is provided at the end of the wire 42 instead of the wire gripping device 43.
2 and a wire storage device 73 is mounted substantially at the center of the suspension ring 39 of the earth and sand bucket. The wire storage device 73 has a wire storage opening 74 formed from a part of the periphery toward the inside. 2. A pneumatic caisson according to claim 1, further comprising a cone-shaped storage hole for a bucket lifter formed in the inside thereof, and a wire detachment stopper for opening and closing the wire storage opening. Drilling equipment.