JP2001163290A - Dredging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dredging device capable of reducing the influence even if a long or large obstacle is present in the earth and sand of water bottom and preventing the obstacle from blocking an earth and sand suction port. SOLUTION: This device comprises a dredging operation part 30 provided on the tip part of a ladder 10 extended from the hull 20 of a dredger and vertically or laterally rotatable about the base end part connected to the hull 20, and arranged in the water bottom by the rotation of the ladder 10 to perform dredging and sucking operation; a pump provided on the hull 20 and driven so as to suck and carry the earth and sand or the like dredged by the dredging operation part 30 to the earth and sand suction port 32a; and a cylindrical carrying passage member for connecting at least the pump to the dredging operation part 30 to carry the earth and sand or the like. The dredging operation part 30 has a bucket 38 rotatably provided through a bendable arm 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dredging apparatus provided on a dredger for excavating and collecting earth and sand deposited on a water bottom.

[0002]

2. Description of the Related Art As a conventional dredging device, for example, there is one as shown in FIGS. In the conventional dredger as shown in FIG. 7, a base end of a long ladder 10 made of a long rectangular tube or the like is rotatably connected to a bow portion thereof. Cutter device 1 as shown
2 are provided. In this cutter device 12, a plurality of spiral plate-shaped cutter blades 14 are provided at intervals around its axis. This cutter blade 14
Although not shown, a large number of projections for finely crushing earth and sand are formed on each of the surfaces on the rotation progress side.

The cutter device 12 having the cutter blade 14 is driven to rotate by a motor provided on a hull 20 via a rotation transmission shaft 16 in the rudder 10 to finely crush soil and the like deposited on the water bottom. It can be excavated.

[0004] The earth and sand excavated by the cutter blade 14 of the cutter device 12 is sucked from the earth and sand inlet of the suction pipe 18 and passes through a cylindrical pipeline (transport path member, not shown). It is to be transported to other places. The suction of soil and the like into the suction pipe 18 and the transport of the soil and the like through the pipeline are driven by a pump (not shown) provided on the hull 20 of the dredger.

[0005] In the vicinity of the cutter device 12, a wire 2 is provided.
The other end of the wire 22 is connected to a pulley of a winch 24 provided on the hull 20 via a pulley 27 at the tip of a column 26.

When the wire 22 is wound by the winch 24, the ladder 10 rotates counterclockwise in FIG. 7 to pull the cutter device 12 above the water surface, and the winch 24 rotates in the reverse direction. By doing so, when the wire 22 is unwound, the rudder 10 rotates clockwise in the opposite direction to the above, so that the cutter device 12 lands on the bottom of the water and dredging can be performed.

[0007]

However, in the conventional dredging apparatus as described above, for example, a long log bar flowing from the upstream of a river or a long steel material illegally dumped in the soil at the bottom of the water. Or, if there is an obstacle such as a large lump of rock, it will hinder the dredging operation, and in some cases, the obstacle will block the sediment suction port of the suction pipe 18 and continue the dredging operation. There was a problem that became impossible.

[0008] In view of the above problems, the present invention can reduce the influence of long or large obstacles in the soil at the bottom of the water, and reduce the influence of the obstacles. It is an object of the present invention to provide a dredging device that can prevent the occupant from being blocked.

[0009]

SUMMARY OF THE INVENTION In order to solve the above problems, a dredging device according to the present invention is provided at a distal end of a rudder extending from a hull of a dredger and rotatable around a base end supported by the hull. A dredging unit disposed on the bottom of the water by the rotation of the rudder to perform a dredging operation; and the sediment and the like provided on the hull and dredged by the dredging unit through the sediment suction port of the dredging unit. And a cylindrical transport path member for transporting soil and the like by connecting at least the pump and the dredging operation unit, wherein the dredging operation unit is provided via a bendable arm. And a rotatably provided bucket.

[0010] According to the dredging device having such a configuration, the dredging operation section provided at the tip of the ladder extending from the hull of the dredger has the bucket rotatably provided via the bendable arm. Even if there is an obstacle such as a long one or a large one, the bucket can easily avoid or avoid the obstacle by bending the arm or rotating the bucket, so that the influence of the obstacle is reduced. Can be.

Further, by providing an obstacle removing means at the sediment suction port of the dredging operation part of the dredging device, the sediment suction port is blocked by an obstacle such as a long one or a large one, so that the dredging operation is prevented. It is possible to prevent the continuation from becoming impossible.

[0012]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIGS. 1, 2 and 7 are views referred to for describing the first embodiment of the dredging device according to the present invention. Components that are the same as those in the related art are described using the same reference numerals, and descriptions of the same configurations and operations as already described are omitted.

FIG. 1 is a diagram showing a dredging device according to a first embodiment of the present invention. The dredging device shown in FIG. 1 has a dredging operation section as shown in FIGS. 1 and 2 instead of the cutter device 12 provided at the tip of the conventional long ladder 10 (see FIG. 7). This is significantly different from the above-mentioned conventional dredging device in that 30 is provided.

That is, at the tip of the ladder 10, FIG.
Is provided with a hopper-shaped earth and sand suction port 32a as shown in FIG. 1, and a mesh screen 34 (obstacle removing means) is provided at the opening of the earth and sand suction port 32a. The opposite side of the sediment suction port 32a from the mesh screen 34 is bent at substantially a right angle and connected to the suction pipe 18. A rotary feeder 33 is provided in a portion of the earth and sand suction port 32a bent at a right angle, such that the rotary door is turned down by 90 ° to make the rotation axis horizontal.

Further, as shown in FIG.
An arm base 35 is rotatably provided on the arm base 35, and a bucket 38 is provided on the arm base 35 via a bendable arm 36. The arm 36 includes a plurality of arm members that can bend each other, a plurality of drive cylinders that drive the bending operation, and the like.
Is also provided so that it can be bent (rotatably).

In the dredging apparatus having such a configuration, as shown in FIG.
It is possible to excavate and sediment the bottom of the water. The bucket 38 drops excavated earth and sand on the mesh screen 34 so that the earth and sand falls through the mesh of the mesh screen 34 into the earth and sand inlet 32a. The fallen soil and the like are collected by the rotary feeder 33 into the suction pipe 18.
Side, and is conveyed through the suction pipe 18 by a pump provided in the hull 20.

Since an obstacle such as a long one or a large one cannot pass through the mesh of the mesh screen 34, the obstacle can be dropped from above the mesh screen 34 to the side of the sediment suction part 32. For this reason, the influence by such an obstacle can be reduced, and the earth and sand suction port of the suction pipe 18 can be prevented from being blocked by such an obstacle.

In the bent portion of the earth and sand suction port 32a,
Since the rotary feeder 33 is provided such that the rotary door is tilted 90 ° and the rotation axis is horizontal,
It is also possible to prevent earth and sand and the like from being jammed in the bent portion 2a.

Therefore, according to the dredging apparatus according to the present embodiment, the dredging operation section 30 provided at the tip of the ladder 10 extending from the hull 20 of the dredger is provided with the bendable arm 36.
Since the bucket 38 is rotatably provided through the bucket 38, even if there is an obstacle such as a long one or a large one, the bucket 38 uses the bending of the arm 36 or the bucket 3
Since the rotation of the shutter 8 can be easily avoided or swung, the influence of an obstacle can be reduced.

Further, since the mesh screen 34 is provided at the sediment suction port 32a of the sediment suction part 32 of the dredging operation part 30, the obstruction such as a long one or a large one obstructs the sediment suction port 32a. This can prevent the continuation of the dredging operation from becoming impossible. In addition, since a pump for driving the dredging operation unit 30 to carry out the sediment suction operation and transport of the sediment and the like is provided on the hull 20, it is possible to easily perform repairs and maintenance inspections when the pump breaks down.

FIGS. 3 and 4 are views showing a dredging operation section 31 according to a second embodiment of the present invention. In the first embodiment, the earth and sand suction port 32a is opened on the upper surface of the earth and sand suction part 32, whereas in the second embodiment,
The difference is that the earth and sand suction port 32a is open to the front of the earth and sand suction part 32, and a mesh screen 34 is provided at the opening of the earth and sand suction port 32a. In the second embodiment, the same effects as in the first embodiment can be obtained.

FIG. 5 is a view showing a dredging operation section 39 according to a third embodiment of the present invention. In the first and second embodiments, the earth and sand sucked from the earth and sand suction port 32a is conveyed by a pump provided in the hull 20. On the other hand, in the third embodiment, In the embodiment, an opening of an air supply pipe 37 is arranged inside the rotary feeder 33 of the earth and sand intake port 32a, and from the opening of the air supply pipe 37, an air supply device such as a compressor provided on the hull 20 is provided. The sent compressed air is supplied, and the compressed air causes the earth and sand sucked from the earth and sand inlet 32 a to be conveyed to the hull 20 through the suction pipe 18.

FIG. 6 is a diagram referred to for describing a fourth embodiment of the present invention. In the present embodiment, the suction pipe 18 protrudes from the tip of the ladder 10, and a sediment loading section 40 for placing earth and sand on the tip of the suction pipe 18 is provided. The earth and sand loading portion 40 is formed in a dust-like shape, and is connected to the suction pipe 18 and has a vertical plate portion 40a made of a steel plate having a communication hole opened, and is connected to the lower side of the vertical plate portion 40a and extends horizontally forward. A bottom plate portion 40b of a steel plate to be extended;
a and a side plate portion 40c of a triangular steel plate which is connected to both side portions of the bottom plate portion 40b and rises vertically.

The upper side of the vertical plate 40a and the bottom plate 40
An obstruction removing means 42 formed by welding a steel bar in a lattice is provided in a quadrangular opening formed by the front side of b and the oblique side of the side plate 40c.

In the fourth embodiment as well, obstacles such as long ones and large ones cannot enter the sediment loading section 40 from the grid of the obstacle removing means 42.
The effect of such an obstacle can be reduced, and the opening of the suction pipe 18 can be prevented from being blocked by the obstacle.

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and based on the technical concept of the present invention, other embodiments are possible. Various changes are possible.

[0027]

As described above, according to the present invention,
Since the dredging operation section provided at the tip of the ladder extending from the hull of the dredge has a bucket rotatably provided via a bendable arm, even if there is an obstacle such as a long one or a large one, Since the bucket can easily avoid or move around the obstacle by bending the arm or rotating the bucket, the influence of the obstacle can be reduced.

Also, by providing an obstacle removing means at the sediment suction port of the dredging operation section of the dredging device, the sediment suction port is blocked by an obstacle such as a long one or a large one, and as a result, the dredging operation is prevented. It is possible to prevent the continuation from becoming impossible.

[Brief description of the drawings]

FIG. 1 shows a dredging operation section 3 according to a first embodiment of the present invention.
FIG.

FIG. 2 is a side view of the dredging operation section 30 in FIG.

FIG. 3 shows a dredging operation section 3 according to a second embodiment of the present invention.
FIG.

FIG. 4 is a side view of the dredging operation section 31 in FIG.

FIG. 5 is a dredging operation section 3 according to a third embodiment of the present invention.
FIG. 9 is a side view showing 9.

FIG. 6 shows a sediment loading section 4 according to a fourth embodiment of the present invention.
FIG. 4 is a perspective view showing a reference numeral 0 and obstacle removing means 42.

FIG. 7 is a side view showing a conventional dredger and a dredging device provided therein.

FIG. 8 is a side view showing a cutter device 12 as a conventional dredging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ladder 12 Cutter device 14 Cutter blade 16 Rotation transmission shaft 18 Suction pipe 20 Hull 22 Wire 24 Winch 26 Prop 27 Pulley 30, 31 Dredging operation part 32 Sediment suction part 32a Sediment suction port 33 Rotary feeder 34 Mesh screen 35 Arm stand 36 Arm 37 air supply pipe 38 bucket 39 dredging operation part 40 earth and sand loading part 40a vertical plate part 40b bottom plate part 40c side plate part 42 obstacle removing means

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 18, 2000 (2000.8.1)
8)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

[0009]

In order to solve the above problems SUMMARY OF THE INVENTION, dredging apparatus of the present invention, rotatable rudder vertically or horizontally around the base end portion connected to the hull extending from the hull of the dredger And a dredging operation unit which is disposed at the bottom of the water by the rotation of the rudder and performs dredging and suctioning operations. A pump driven to suck and convey from the mouth, and an obstacle removing hand provided at the earth and sand suction port.
A step, and a cylindrical transport path member for transporting earth and sand by connecting at least the pump and the dredging operating section, and bent into a dredging operating section provided at the tip of the ladder. A free arm base is provided and this arm
And a bucket rotatably provided at the tip end of the head. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission Date] October 2, 2000 (2000.10.
2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

Claims (7)

[Claims] 1. A dredger which is provided at the tip of a rudder extending from the hull of a dredger and rotatable up and down or left and right around a base end connected to the hull. A dredge operating part for performing suction operation, and a pump provided on the hull and driven to suck and convey sediment and the like dredged by the dredging operation part from a sediment suction port of the dredging operation part, and at least the pump and the dredging. A cylindrical transport path member for transporting earth and sand, etc. by connecting with an operating part, wherein the dredging operating part has a bucket rotatably provided via a bendable arm. Features dredging equipment. 2. The dredging apparatus according to claim 1, wherein an obstacle removing means is provided at a sediment suction port of the dredging operation section. 3. The dredging device according to claim 2, wherein a sediment suction port of the dredging operation portion is opened upward, and a mesh-shaped or lattice-shaped obstacle removing means is provided in the opening. apparatus. 4. The dredging device according to claim 2, wherein a sediment suction port of the dredging operation section is opened forward, and a mesh-shaped or lattice-shaped obstacle removing means is provided in the opening. apparatus. 5. A dredger extending from the hull of a dredger and provided at the tip of a ladder that is rotatable up and down or left and right around a base end connected to the hull, and is disposed on the water floor by the rotation of the ladder and dredged. And a dredging operation unit that performs suction operation, and an air pressure feeding device that is provided on the hull and sends compressed air to the inside of the sediment suction port of the dredging operation unit to pump dredged soil and the like toward the back of the sediment suction port. And a cylindrical conveying path member for connecting at least the pneumatic pumping device and the dredging operation unit to perform earth and sand, and the dredging operation unit is rotated via a bendable arm. A dredging device comprising a freely provided bucket. 6. A dredger provided at a tip of a rudder extending from a hull of a dredger and rotatable up and down or left and right around a base end connected to the hull, and disposed on the water bottom by the rotation of the rudder and dredged. A dredge operating part for performing suction operation, and a pump provided on the hull and driven to suck and convey sediment and the like dredged by the dredging operation part from a sediment suction port of the dredging operation part, and at least the pump and the dredging. A cylindrical transport path member for transporting earth and sand, etc. in connection with an operating section, wherein the dredging operating section has a bucket rotatably provided via a bendable arm. By bending the arm or rotating the bucket to dredge the sediment at the bottom of the water, by operating the pump, the dredged sediment is sucked from the sediment suction port of the dredging operation part, A dredging method, wherein the sucked earth and sand is transported in the transport path member by operation. 7. A dredger extending from the hull of the dredger and provided at a distal end of a ladder rotatable up and down or left and right around a base end connected to the hull, and disposed on the bottom of the water by rotation of the ladder and dredged. And a dredging operation unit that performs suction operation, and an air pressure feeding device that is provided on the hull and sends compressed air to the inside of the sediment suction port of the dredging operation unit to pump dredged soil and the like toward the back of the sediment suction port. And a cylindrical conveying path member for connecting at least the pneumatic pumping device and the dredging operation unit to perform earth and sand, and the dredging operation unit is rotated via a bendable arm. Using a dredging device having a freely provided bucket, the arm is bent or the bucket is rotated to dredge the sediment at the bottom of the water, and the pneumatic pumping device operates the dredged soil to dredge the dredged soil. Earth and sand Is sucked from the inlet, dredging method, characterized in that the inhaled Sediment was so as to convey the conveyance path member by the operation of the air feeding device.