JPH09228383A - Sediment discharge device in Hakouchi - Google Patents

Abstract

(57) [Summary] (Modified) [PROBLEMS] To provide a sediment discharging device in a caisson. SOLUTION: An overhead traveling rail 57 installed on a ceiling slab 51 of a caisson work room, a traveling device 58 movably installed on the overhead traveling rail 57, and a plurality of vertically combined sets of links combined in an X shape. An elevating device 61 having a connected pantograph mechanism 62 and an elevating jack 70 for expanding and contracting the pantograph mechanism 62, and an elevating device 61 supported by the traveling device 58, and a sand receiving device attached to the lower part of the elevating device 61. A cradle 72, a pair of clam shells 74, 74 that are openably and closably attached to the gravel receiving device cradle 72, and a jack 77 for opening and closing the clam shells 74, 74. A device 71 and a control device 78 for the traveling device 58, the lifting jack 70, and the opening / closing jack 77 are configured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sediment discharging device in a box for excavating, loading, transporting and discharging excavated soil excavated by an excavator in a caisson.

[0002]

2. Description of the Related Art Conventionally, there is a technique disclosed in Japanese Utility Model Publication No. 53-22412 proposed by the applicant of the present invention as a technique related to the ground excavation and transportation device in Hakouchi. ~ Shown in FIG.

The conventional apparatus shown in these figures has a front-rear traveling rail 7, 7'and a left-right traveling rail 9,
9 ', a traverse stand 19, a reaction force device 20 for the excavator,
The drilling tool 31 is provided.

The front-rear traveling rails 7 and 7'are detachably mounted on supports 8 and 8'mounted on the side walls of the rectangular working chamber 2 of the caisson frame 1.

The left and right traveling rails 9 and 9'are arranged at right angles to the front and rear traveling rails 7 and 7 '. The left and right traveling rails 9 and 9'are freely movable in the front-rear direction XX 'on the front and rear traveling rails 7 and 7'through traveling mounts 10 and 10' attached to both ends thereof. It is mounted.

[0006] The traveling racks 10 and 10 'are provided with a drive device for traveling rails in the front-rear direction.

The traverse platform 19 is mounted on the traveling rails 9 and 9'in the left-right direction so that it can travel freely. A drive device for the traverse stand 19 is provided.

The reaction force device 20 includes a fluid pressure cylinder 29.
And a piston rod 30 fitted and inserted therein, so as to apply a reaction force to the excavator 31.

The excavator 31 includes a rotary shaft 35, an upper frame 37, a pantograph type expansion / contraction mechanism 32, fluid pressure jacks 44, 44 'for expanding / contracting the same, and T-shaped vertical plates 38, 38. ′ 'S lower frame 42
And excavation buckets 33, 33 'and fluid pressure jacks 46, 46' for opening and closing the excavation buckets 33, 33 '.

The rotary shaft 35 is rotatably mounted on the horizontal mounting device 19 via a bearing.

The upper frame 37 includes the rotary shaft 3
It is attached to the lower end of No. 5.

The pantograph type expansion / contraction mechanism 32 has a link 43 formed by combining two members in a dogleg shape, and also has a link 43.
A link 43 ′, which is a combination of book members in an inverted V shape, is arranged to face each other, and only one set is provided. The links 43, 4 of the pantograph type expansion / contraction mechanism 32
The upper end of 3'is pivotally supported on the frame 37 via pivots 36,36 ', and the lower end is pivotally supported on the upper ends of the T-shaped vertical plates 38,38' via pivots 39,39 '. Has been done.

The fluid pressure jacks 44 and 44 'are arranged in parallel with each other in the pantograph type expansion / contraction mechanism 32 in the horizontal direction, and cooperate to expand / contract the links 43, 43' of the pantograph type expansion / contraction mechanism 32. It is like this.

The lower frame 42 includes the link 4
T-shaped vertical plate 38 pivotally supporting the lower ends of 3, 43 ',
38 'and a reinforcing strip 4 attached to the middle portion thereof
1.

The excavation buckets 33 and 33 'are attached to the lower portion of the T-shaped vertical plate 38 so as to be openable and closable via a pivot 40.

The fluid pressure jacks 46, 46 'are arranged inside the T-shaped vertical plates 38, 38' so as to intersect each other in an X-shape, and the upper ends thereof are T-shaped via pivots 39, 39 '. The vertical plates 38, 38 'are pivotally supported at their upper ends, and their lower ends are connected to the power point ends of the excavation buckets 33, 33' through supporting shafts 45, 45 '.

In the figure, 3 is an air lock chamber, 5 is a through hole for carrying out earth and sand, 6 is a damper for the through hole, and G is the bottom ground of the rectangular work chamber.

In the conventional device, the reaction force device 20 is contracted in the initial state, the pantograph type expansion / contraction mechanism 32 is contracted in the vertical direction by the fluid pressure jacks 44, 44 ', the excavator 31 is raised, and the excavation buckets 33, 33. ′ Is closed and the rotary shaft 35 is stopped.

From this state, the ground G at the bottom of the rectangular work chamber 2
When excavating, the traveling mount 10 and the traverse mount 21
Is operated to move the excavator 31 to a position where the natural ground G should be excavated.

At the position where the natural ground G is to be excavated, the fluid pressure jacks 46 and 46 'for opening and closing the excavation bucket are contracted, the excavation buckets 33 and 33' are opened, and the fluid pressure jack 44 for the pantograph-type telescopic mechanism 44 is opened. , 44 'to extend the pantograph type expansion / contraction mechanism 32 in the vertical direction,
Is lowered and the excavation buckets 33, 33 'are pierced into the natural ground G in the opened state. In this state, the fluid pressure cylinder 29 of the reaction force device 20 extends the piston rod 30 to press the excavation buckets 33, 33 'against the natural ground G and apply a reaction force.

Then, the fluid pressure jacks 46, 46 'for opening and closing the excavation bucket are extended to extend the excavation bucket 33, 3'.
3'is closed to excavate the ground G, and at the same time, the excavated soil is stored in the excavation buckets 33, 33 '.

Thereafter, the fluid pressure cylinder 2 of the reaction force device 20.
The piston rod 30 is contracted by 9 and the pantograph type expansion / contraction mechanism 32 is contracted vertically by the fluid pressure jacks 44, 44 'for the pandagraph type expansion / contraction mechanism to raise the excavator 31.

Next, the traveling frame 10 and the transverse frame 21
And excavating buckets 33, 3 containing soil
3'is moved to above the earth and sand bucket 47 and positioned.

Subsequently, the fluid pressure jacks 46 and 46 'for opening and closing the excavation buckets are contracted to extract the excavation buckets 33 and 3.
3 ′ is opened, the excavated earth and sand stored therein is put into the earth and sand bucket 47, and the excavation buckets 33 and 33 ′ are left open or closed, and then the excavator 31 is moved to the excavation position again. .

If necessary, the rotary shaft drive is rotated to rotate the rotary shaft 35 to properly change the direction of the excavation buckets 33, 33 'relative to the natural ground G.

By repeating the above operation, the ground G at the bottom of the rectangular work chamber 2 is excavated, and the caisson frame 1 is submerged.

[0027]

By the way, the above-mentioned conventional device has the following problems to be improved. (1) A frame 42 having T-shaped vertical plates 38, 38 'and a reinforcing strip 41, and fluid pressure jacks 46, 46' for opening and closing an excavating bucket intersect at the upper center of the earth and sand buckets 33, 33 '. It is difficult to load excavated earth and sand from another excavator because it is provided in the shape of a circle. (2) The pantograph type expansion / contraction mechanism 32 is a set of links 4
3, 43 ', and moreover, inside the pantograph type expansion / contraction mechanism 32, a fluid pressure jack 44 for expansion / contraction operation,
Since 44 'is provided, the lifting stroke is small. For this reason, the excavation buckets 33, 33 'are
It is expected that it may be difficult to input the excavated soil from the excavation buckets 33, 33 'to the sediment bucket 47 due to the interference with the excavation buckets 33, 33'. (3) After all, substantially only one device can perform two types of work: excavation of natural ground G and transportation of excavated earth and sand. (4) The structure of the entire device is complicated and expensive.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to carry out four kinds of work, that is, grasping, loading, transporting and discharging excavated soil with a single device. The purpose of the present invention is to provide an earth and sand discharging device in a box which can efficiently and remotely discharge excavated earth and sand without interfering with the work of the excavator which is a dedicated machine for excavating the ground, and has a simple overall structure. .

[0029]

In order to achieve the above object, according to the present invention, an overhead traveling rail 57 installed on a caisson work chamber ceiling slab 51 and traveling provided along the overhead traveling rail 57 so as to travel freely. It has a device 58, a pantograph mechanism 62 in which a plurality of X-shaped combined links are connected in the vertical direction, and a lifting jack 70 for vertically expanding and contracting the pantograph mechanism 62, and is suspended from the traveling device 58. The lifting device 61 supported by being lowered, the earth and sand receiving device mount 72 attached to the lower part of the elevating device 61, and a pair of two clam shells 74 that are openably and closably attached to the earth and sand receiving device mount 72 via hinges. ，
74 and a jack 77 for opening and closing the clamshells 74, 74 for grasping and excavating earth and sand
1 and at least a control device 78 for remotely operating the traveling device 58, the lifting jack 70, and the opening / closing jack 77.

[0030]

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

1 to 6 show a first embodiment of the present invention. FIG. 1 is a side view showing a state in which excavated earth and sand are loaded from an excavator to an earth and sand discharging device, and FIG. 2 is loaded in the earth and sand discharging device. FIG. 4 is a side view showing a state where the excavated sediment is transported to the upper part of the sediment bucket, FIG. 3 is a side view showing a state where the transported excavated sediment is discharged from the sediment discharge device to the sediment bucket, and FIG. 4 is a side view showing a state where the discharge is completed. 5, FIG. 5 is a sectional view taken along the line AA of FIG. 2, and FIG. 6 is a side view showing details of the lifting device.

The earth and sand discharging device 56 shown in these figures is provided with overhead traveling rails 57, 57, a traveling device 58, an elevating device 61, a device for catching and excavating earth and sand and a sediment receiving device 71, and a control device 78. It is configured.

The ceiling traveling rails 57, 57 are arranged on the outer end side in the diametrical direction of the opening 52 provided in the working room ceiling slab 51 of the pneumatic caisson, and installed on the lower surface of the working room ceiling slab 51. Has been done.

The traveling device 58 is installed on the ceiling traveling rails 57, 57 via traveling rollers 59 provided at least at the front and rear, and on the left and right ends.
It is mounted so that it can run freely along 7,57. Further, as shown in FIG. 6, the traveling device 58 is provided with roller guides 60, 60 which are long holes elongated in the traveling direction.

The lifting device 61 comprises a pantograph mechanism 6
2 and a lifting jack 70.
In this embodiment, the pantograph mechanism 62 is configured by connecting two sets of links 63 and 64 in the vertical direction.
The links 63, 64 are made of steel rod link members 65,
65 are combined in an X shape, and the intersections thereof are connected by a pin 66. The lower end of the link 63 and the upper end of the link 64 are connected by a pin 67. Guide rollers 68, 68 are attached to the upper ends of the link members 65, 65 constituting the link 63. The guide rollers 68, 68 are provided on the traveling device 58, and the guide rollers 68, 68 are provided. It is fitted with 60. In addition, the link member 6 that constitutes the link 64
Guide rollers 69, 69 are attached to the lower ends of the 5, 65. The lifting jack 70 extends from the side of the pantograph mechanism 62 to a connecting portion with the pantograph mechanism 62. The upper end of the lifting jack 70 is attached to the traveling device 58, and the lower end is commonly connected to the links 63 and 64 via one pin 67 that connects the links 63 and 64. There is. As the lifting jack 70 expands and contracts, the pantograph mechanism 62 expands and contracts in the vertical direction.

A device 7 for grasping and excavating the excavated sediment
1 comprises a earth and sand receiving device stand 72, a pair of two clam shells 74, 74, and an opening / closing jack 77 thereof. The earth and sand receiving device stand 72 is provided with roller guides 73, 73 which are long holes long in the traveling direction. As shown in FIG. 6, this earth and sand receiving device stand 72 has a pantograph mechanism by fitting guide rollers 69, 69 attached to the lower ends of the links 64 of the pantograph mechanism 62 to the roller guides 73, 73. It is connected to 62. Clam shell 7
4, 74 are openably and closably attached to the central portion of the earth and sand receiving device stand 72 with a pin 75 as a fulcrum. In addition, the yoke 7 is attached to the upper ends of the clam shells 74, 74.
6,76 are provided. The opening / closing jack 77
Is the yoke 7 provided on the clam shells 74, 74.
It is attached between 6,76 and the clam shell 74,
The opening / closing operation of 74 is performed.

The control device 78 is mounted on the traveling device 58. The control device 78 is configured to remotely control at least the traveling device 58, the jack 70 for raising and lowering the pantograph mechanism 62, and the clam shells 74, 7 by remote control by wire.
The opening / closing jack 77 of No. 4 can be controlled.

In this embodiment, in addition to the sediment discharge device 56, a dedicated excavator 53 for excavating the ground G at the bottom of the pneumatic caisson working chamber 50 and a sediment bucket 55 for containing the excavated sediment 54 are provided. It has been deployed.

Next, the excavator 53 and the sediment discharging device 5
The operation with 6 will be described.

First, in this embodiment, the excavator 5 shown in FIG.
3 excavates the ground G at the bottom of the working chamber 50 of the pneumatic caisson. After the excavation, the excavated earth and sand 54 are accumulated and placed at an appropriate position in the working chamber 50.

Then, with the clamshells 74, 74 of the gripping and sediment receiving device 71 of the sediment discharging device 56 closed and raised, the gripping and sediment receiving device 71 is moved by the traveling device 58 along the overhead traveling rail 57. Excavator 53
The excavated soil 54 is moved to a position where it can be easily received.

Then, the lifting jack 7 of the lifting device 61 is used.
0 is extended, the pantograph mechanism 62 is extended downward, and the gripping and earth and sand receiving device 71 is lowered to a height at which the excavation earth and sand 54 can be easily received from the excavator 53.

In this state, as shown in FIG. 1, the excavator 5
The excavation bucket of No. 3 scoops the excavated soil 54, and the clamshell 74 of the waiting grip and sediment receiver 71,
The excavated earth and sand 54 are put in 74.

After the proper amount of the excavated earth and sand 54 is accommodated in the clam shells 74, 74 of the gripping and earth and sand receiving device 71 by the excavation bucket of the excavator 53, the lifting jack 70 of the lifting device 61 is contracted, and the pantograph mechanism. 62 is contracted upward, and the clam shells 74, 74 containing the excavated earth and sand 54 are raised.

Next, as shown in FIGS. 2 and 5, the traveling device 58 moves the clamshells 74, 74 of the gripping and sediment receiving device 71 to above the earth and sand bucket 55 along the overhead traveling rail 57.

After that, as shown in FIGS. 3 and 4, the opening / closing jacks 77 of the clam shells 74, 74 of the gripping and sand receiving device 71 are reduced, the clam shells 74, 74 are opened, and the clam shells 74, 74 are opened. The excavated sediment 54 is put into the sediment bucket 55.

As described above, after the excavated earth and sand 54 is put into the earth and sand bucket 55, the opening / closing jack 77 of the clam shells 74 and 74 is extended and the clam shells 74 and 74 are closed.
The gripping and sediment receiving device 71 is again moved to the receiving position of the excavated sediment 54 from the excavator 53.

The above operation is repeatedly performed by remote control by wire by the control device 78 mounted on the traveling device 58, and the excavated sediment 54 is loaded, transported and discharged in the working chamber 50 of the pneumatic caisson.

The earth and sand bucket 55 containing the excavated earth and sand 54 moves the grasping and earth and sand receiving device 71 from above, and then, through the opening 52 provided in the work room ceiling slab 51, a cargo handling machine such as a crane. After that, the excavated sand 54 is discharged to the ground and then returned to the working chamber 50 again.

Next, FIG. 7 is a side view showing another example of the work of the gripping and sediment receiving device 71 in the sediment discharging device 56.

In the work shown in FIG. 7, the excavated earth and sand 54 excavated by the excavator is accumulated in an appropriate place in the work chamber 50 within the passage area of the earth catching / sand catching device 71 of the earth and sand discharging device 56.

Then, along the ceiling traveling rail 57 of the earth and sand discharging device 56, the traveling device 58 moves the grasping and earth and sand receiving device 71 to above the accumulating place of the excavated earth and sand 54. In this case, the clam shells 74, 74 of the gripping and sediment receiving device 71 may be opened or closed.

After moving the gripping and sediment receiving device 71 above the place where the excavated sediment 54 is accumulated, when the clam shells 74, 74 are moved in an open state, the lifting jacks 70 of the lifting device 61 and Through the pantograph mechanism 62, the grasping / sediment receiving device 71 is lowered, and the clam shell 74,
74 is inserted, the clam shells 74 and 74 are closed by the opening / closing jack 77, and the excavated earth and sand 54 are excavated and grasped. On the other hand, with the clam shells 74, 74 of the gripping and sediment receiving device 71 closed, the accumulated excavated sediment 5
4 is opened, the clamshells 74, 74 are opened by the opening / closing jack 77, and the lifting device 6 is used as it is.
The lifting and lowering jack 70 and the pantograph mechanism 62 of FIG. 1 lowers the gripping and sediment receiving device 71, inserts the clam shells 74 and 74 into the accumulated excavated soil 54, and opens and closes the clam shells 74 and 7 by the jack 77.
4 is closed, and the excavated soil 54 is excavated and grasped.

After that, the lifting jack 7 of the lifting device 61
0 and the pantograph mechanism 62 raises the clamshells 74 and 74 containing the excavated sand 54, moves them above the waiting sandbag by the traveling device 58, and opens the clamshells 74 and 74 by the opening / closing jack 77. The excavated sediment 54 is put into the sediment bucket from the clamshells 74, 74.

That is, in the working example shown in FIG. 7, the same earth and sand discharging device 56 is used for excavating and grasping the excavated earth and sand 54.
There are four types of work: loading, transportation and discharge.

The above operation is also performed by the wired remote control by the control device 78.

Next, FIG. 8 shows a second embodiment of the present invention and is a side view of an elevating and lowering device of a gripping and sediment receiving device.

In the second embodiment shown in FIG. 8, the lifting jack 70 is provided between the upper link 63 which constitutes the pantograph mechanism 62 of the lifting device 61 and the lower link 64 which is connected to the upper link 63. 'Is attached.

The other structure of the second embodiment is the same as that of the first embodiment, and the operation is the same.

Next, FIG. 9 shows a third embodiment of the present invention and is a side view showing a state in which the accumulated excavated soil is excavated and loaded.

In the third embodiment shown in FIG. 9, a clamshell mounting base 79 is attached to the earth and sand receiving device base 72 attached to the lower part of the pantograph mechanism 62. On both sides of the lower part of the clamshell mount 79,
A bracket 80 is provided.

A clam shell 74 is rotatably attached to each bracket 80 via a pin 81.

In the third embodiment, the clamshells 74, 74 are inserted into the accumulated excavated sand 54 in a closed state by moving the clamshells 74, 74 to the central portion, and the clamshell 74 is inserted as shown by an arrow in FIG. , 74 are rotated outward, and the excavated sand 54 is excavated and loaded by the clam shells 74, 74,
I try to carry it.

Another structure and operation of the third embodiment is as follows.
This is the same as the second embodiment.

[0065]

As described above, according to the present invention, the overhead traveling rail 5 installed on the ceiling slab 51 of the caisson work room is installed.
7, a traveling device 58 installed so as to travel freely along the overhead traveling rail 57, a pantograph mechanism 62 in which a plurality of X-shaped combined links are connected in the vertical direction, and the pantograph mechanism 62 is moved in the vertical direction. An elevating device 61 that has an elevating jack 70 that expands and contracts and is suspended and supported by the traveling device 58, a earth and sand receiving device mount 72 attached to the lower portion of the elevating device 61, and the earth and sand receiving device mount 72. A pair of clam shells 74, 74 that are attached to each other via hinges to open and close, and a jack 77 for opening and closing the clam shells 74, 74, and a catching and sediment receiving device 71 for excavating earth and sand; Since the traveling device 58, the lifting jack 70, and the control device 78 for remotely operating the opening / closing jack 77 are provided, There is an effect that four kinds of work including excavation, loading, transportation and discharge work of the excavated earth and sand 54 can be performed by one device, and the ground G at the bottom of the working room 50 of the caisson is excavated by the excavator 53, and the excavated earth and sand 54 Are collected and stored from the excavation bucket of the excavator 53 into the clamshells 74 and 74 of the earth and sand discharging device 56 and the earth and sand receiving device 71, or the clamshells 74 and 74 are inserted into the accumulated excavated sand 54. Since it can be excavated, loaded, and transported, there is an effect that excavation earth and sand 54 can be put into the clam shells 74, 74 from the excavation bucket of the excavator 53 to efficiently perform earth removal work. All of them are controlled remotely by the control device 78, so the soil removal work at the pneumatic caisson can be done mechanically.
The excavator 53 excavates the natural ground G at the bottom of the caisson work chamber 50 exclusively because it has an effect that can be safely executed. Therefore, the structure of the whole earth and sand discharging device is simplified and the cost is reduced. There is also an effect that can be provided.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention and is a side view of a state in which excavated soil is loaded from an excavator to a sediment discharge device.

FIG. 2 is a side view of the state where the loaded excavated soil has been transported to above the sediment bucket, following FIG.

FIG. 3 is a side view of the state in which the transported excavated sediment is discharged from the sediment discharging device to the sediment bucket, following FIG. 2.

FIG. 4 is a side view showing a state in which, following FIG. 3, soil discharging from the sediment discharging device to the soil bucket is completed.

FIG. 5 is a sectional view taken along line AA of FIG. 2;

FIG. 6 is a side view showing details of the portion of the lifting device in the first embodiment.

FIG. 7 is a side view showing another example of the work of the excavated earth and sand catching and sediment receiving device in the first embodiment.

FIG. 8 shows a second embodiment of the present invention and is a side view of a portion of an elevating device of a device for gripping and excavating excavated soil and sediment.

FIG. 9 is a side view showing a third embodiment of the present invention.

FIG. 10 is a side view showing a conventional technique.

FIG. 11 is a sectional view taken along line BB of FIG. 10;

FIG. 12 is a partially enlarged side view of the related art.

[Explanation of symbols]

 50 Working Room in Pneumatic Caisson 51 Working Room Ceiling Slab 53 Excavator G Ground at Working Room Bottom 54 Excavation Sediment 55 Sediment Bucket 56 Sediment Discharge Device 57 Ceiling Traveling Rail 58 Traveling Device 61 Elevating Device 62 Pantograph Mechanism 63, 64 Link 70 Elevating jack 71 Gripping and excavating earth and sand receiving device 72 Sediment receiving device stand 74,74 Clam shell 77 Clam shell opening / closing jack 78 Control device

Claims (1)

[Claims] 1. A ceiling traveling rail 57 installed on a ceiling slab 51 of a caisson work room, a traveling device 58 movably installed along the ceiling traveling rail 57, and an X-shaped combined link in a vertical direction. And a pantograph mechanism 62 in which a plurality of sets are connected to each other.
A lifting / lowering device 70 that vertically extends and retracts the lifting and lowering device 6 and is suspended and supported by the traveling device 58.
1, a sediment receiving device mount 72 attached to the lower part of the lifting device 61, and a pair of two clam shells 7 openably and closably attached to the sediment receiving device mount 72 via hinges.
4, 74 and a jack 77 for opening and closing the clamshells 74, 74, a gripping and sediment receiving device 71 for excavated soil, at least the traveling device 58 and a lifting jack 70.
And a control device 7 for remotely operating the opening / closing jack 77.
8. The earth and sand discharging device in the box, which is configured by including 8 and.