JPH0539623A - Self-propelling type dredger - Google Patents

Abstract

PURPOSE:To dredge continuously earth and sand even deep in the water in a determined area. CONSTITUTION:A hull 8 is provided with an opening 9. A main travelling truck 11 straddling the opening 9 is provided to move fore and aft on the hull 8. A truck 14 for transversally shifting a dredger is provided on the main travelling truck 11 to travel widthwise of the hull 8. A dredger 4 is suspended from the truck 14 through a dredger suspending wire 15 to the bottom 5 of water. Transversally travelling wire pole trucks 21a, 22b are provided on a bow and stern of the hull 8 to travel widthwise of the hull 8. Wire poles 23a, 23b are stretched out of the respective trucks 21a, 21b to be vertically moved in the water. Dredger moving wires 28a, 28b are mounted on the front and rear of the dredger 4 and erected by the guide of the wire poles 23a, 23b. Dredger towing winches 30a, 30b for taking up and drawing out the wires 28a, 28b are provided on the trucks 21a, 21b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled dredge device for suspending a dredging machine from a hull to dredge earth and sand at the bottom of the water.

[0002]

2. Description of the Related Art Conventionally, when dredging sediments with a shallow water depth, a spud-type pump dredger was used to carry out dredging work by manipulating the ship so as to continuously dredge a predetermined area. When the water depth is deep, as shown in Fig. 5,
The dredger 1 suspends the dredging machine 4 consisting of the submersible sand pump 3 with the pump suspension device 2, dredges the sediment 6 on the water bottom 5, and conveys it by the sand discharging hose 7 to a gravel disposal site (not shown).

[0003]

However, in such a dredging device in which the dredging machine 4 is simply suspended and dredged as described above,
It is difficult to operate the dredged area so as to continuously dredge the area, and only one point can be dredged (so-called pot moat), and there is a problem that the dredging dig remains uneven. In addition, since it takes time to operate the ship, there is a problem that work efficiency is poor.

It is an object of the present invention to provide a self-propelled dredging device capable of continuously dredging a predetermined area even if the dredging of the bottom of the water is deep.

[0005]

The feature of the present invention for achieving the above-mentioned object is that the dredging machine is suspended from the hull by the dredger suspension wire to dredge the sand and sand at the bottom of the water, and the sand discharging hose. In a self-propelled dredging device that discharges at, an opening for suspending and running the dredger is provided on the hull, and the main running in the front-back direction of the hull on the hull on the left and right of the opening. A rail is provided, a main traveling carriage is movably provided on the main traveling rail, a main traverse rail is provided on the main traveling carriage in a direction orthogonal to the main traveling rail, and the main traverse rail is provided. A dredger traverse trolley is provided so as to traverse freely, and the dredger traverse trolley is a sand dredge winch for feeding and hoisting the dredge drooping wire and a sand discharge hoist for feeding and hoisting the sand discharge hose. A reel is provided, and an auxiliary traverse rail is provided on the bow and stern of the hull in a direction parallel to the main traverse rail, and on each of the auxiliary traverse rails, the dredger traverse trolley and the synchronous traverse are provided. A wire pole traversing carriage to be traversed is provided, and each of the wire pole traversing carriages has a wire pole protruding upward and downward in water and a wire pole raising and lowering mechanism for raising and lowering the wire pole according to the depth of the dredge. A dredging machine towing winch for winding and winding the dredging machine moving wire for moving the dredging machine according to the traveling of the main traveling carriage by using the wire pole as a guide.

[0006]

The self-propelled dredging device suspends the dredging machine from the opening of the hull to the bottom of the water with the dredging machine hanging wire.

On the hull, a main traveling carriage that travels across the opening in the longitudinal direction of the hull guided by a main traveling rail, and on the main traveling bogie, is guided to the main traverse rail in the width direction of the hull. A dredger traversing trolley that is traversed and a dredger winch that is installed on the dredger traversing trolley to feed and wind the dredger hanging wire,
The dredging machine suspension wire can be continuously moved arbitrarily in the opening by traveling of the main traveling carriage and traversing of the dredger traversing carriage, so that the dredger even at the water bottom corresponding to the opening. Can be continuously moved to any position.

In particular, the dredger on the bottom of the water controls the position of the hull in the front-back direction by pulling it from both the front and back directions of the hull by a dredger moving wire guided by a wire pole protruding from the front and back of the hull into the water. Since the position of the hull in the width direction is controlled by the traverse of the carriage, it is possible to correctly control the continuous movement in the desired direction even with the dredger on the suspended water bottom.

Therefore, even if the water depth is deep, it is possible to perform the dredging work while continuously moving the dredging machine 4 within a predetermined area.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to FIGS.

The dredger 1 of the self-propelled dredge device of this embodiment is
A rectangular opening 9 is provided at the center of the hull 8 with its longitudinal direction facing the front-back direction of the hull 8. On the hulls 8 on both sides of the opening 9 in the width direction, the hull 8
The main traveling rail 10 is installed in the front-back direction. A main traveling carriage 11 is provided on these main traveling rails 10 so as to travel across the opening 9. The main traveling carriage 11 is also provided with an opening 12.

On the main traveling carriage 11, the main traveling rail 1
Two main transverse rails 13 are provided in a direction orthogonal to 0. On these main traverse rails 13, a dredger traverse carriage 14 is provided so as to traverse freely.

The dredger traversing carriage 14 is equipped with a dredge winch 16 for paying out and winding up the dredge suspending wire 15. This dredger suspending wire 15 allows the center pulley 17 on the dredge traversing carriage 14.
The dredging machine 4 is suspended from the position 5 through the openings 12 and 9 on the water bottom 5.

The dredging machine 4 of this embodiment comprises an excavator 19 which is rotationally driven by a hydraulic motor 18, and a plurality of submersible sand pumps 3 which suck up the earth and sand 6 of the water bottom 5 excavated by the excavator 19. ing. The earth and sand 6 sucked up by these submersible sand pumps 3 are conveyed through the sand discharge hose 7.

A sand discharging hose reel 18 for feeding and hoisting the sand discharging hose 7 is mounted on the dredger traversing carriage 14.

Two auxiliary traverse rails 20a and 20b are provided on the bow and stern of the hull 8 in a direction parallel to the main traverse rail 13. On these auxiliary traverse rails 20a, 20b, wire pole traverse carriages 21a, 21b for synchronously traversing the dredger traverse carriage 14 are provided so as to traverse freely.

The wire pole transverse carriages 21a, 21b
Are provided with wire pole guides 22a and 22b in a vertical direction.
Wire poles 23a and 23b are vertically inserted into b so as to be vertically movable. These wire poles 23
The a and 23b are protruded in the water so as to be vertically movable.

Further, the wire pole traversing carriage 21
A main part of wire pole elevating mechanisms 24a, 24b for elevating the wire poles 23a, 23b according to the depth of the dredging machine 4 is mounted on a and 21b. The wire pole elevating mechanisms 24a and 24b are connected at their tips to the lower portions of the wire poles 23a and 23b, and the wire pole elevating wires 25a and 25b that suspend the wire poles 23a and 23b and the wire pole elevating wires 25a. , 25b wire poles 23a, 2
Pulleys 26a, 26b for guiding the portion along 3b,
The wire pole traverse carriages 21a, 21b are composed of wire pole winches 27a, 27b for feeding and winding the wire pole lifting wires 25a, 25b. The dredge 4 is pulled by the dredge moving wires 28a and 28b in the front-rear direction on the water bottom 5 side. These dredger moving wires 28a, 28b are
Pulleys 29a, 2 below the wire poles 23a, 23b
The wire poles 23a and 23b are erected via 9b. Wire pole traversing carts 21a, 2
On the 1b, the dredge towing winches 30a, 3 for paying out and winding up the dredge move wires 28a, 28b.
0b is installed.

An operation room 31 is installed on the hull 8. In the four corners on the hull 8, the maneuvering winches 32a, 32
b, 32c, 32d are installed. With these marine vessel maneuvering winches 32a to 32d, marine vessel maneuvering wires 33a, 33b, 3
The feeding and winding of 3c and 33d are performed. An anchor (not shown) is attached to the tip of each of the marine vessel maneuvering wires 33a to 33d so that the dredger 1 can be moored.

In this self-propelled dredge device, the main traveling carriage 11
By moving the dredger traversing carriage 14 in the front-back direction of the hull 8 and traversing the dredger traverse carriage 14 in the width direction of the hull 8, the dredger 4 can be continuously moved to any position within the opening 9.

At this time, the dredging machine 4 on the bottom 5 of the water has wire poles 23a, 23b projecting into the water before and after the hull 8.
The position of the hull 8 in the front-rear direction is controlled by pulling it from the front-rear direction of the hull 8 with the dredger moving wires 28a, 28b guided by the wire pole traverse carriages 21a, 21b.
Since the position of the hull 8 in the width direction is controlled by traversing, it is possible to correctly control the continuous movement of the dredger 4 of the suspended water bottom 5 in the desired direction.

Next, the dredging procedure will be described with reference to the excavation locus diagram of the dredging machine 4 shown in FIG.

(A) The dredging area is positioned by the marine vessel maneuvering winches 32a to 32d, the wire pole traversing carriages 21a and 21b are moved to the line a, and the main traveling carriage 1 is operated.
1 and the dredger traversing trolley 14 are moved to set the center of the dredger 4 to the position e to prepare for operation.

(B) The main traveling carriage 11 is made to travel in front of the hull 8 and, at the same time, the dredger moving wire 28 is moved by the front dredger towing winch 30a so as to synchronize with the traveling speed.
Winding a and pulling back the dredging machine winch 30
While the back tension is applied to b, the dredger moving wire 28b is paid out, and the dredge 4 is moved forward.

(C) When the dredging machine 4 reaches the position of f,
The main traveling carriage 11 is stopped and the dredger traversing carriage 14 is moved to the position g.

(D) While the main traveling carriage 11 is traveling to the rear of the hull 8, at the same time as the dredge mover wire 28b is wound by the dredge tow winch 30b, the back tension is applied to the front dredge winch 30a. The dredger moving wire 28a is paid out, and the dredge 4 is moved backward to the position h.

(E) The same operation is repeated thereafter, and when the dredging is completed up to the position of l, the marine vessel maneuvering winches 32a to 32 are formed.
By the operation of d, the dredger 1 is moved to the next dredging area.

The dredger 4 may be composed of only the submersible sand pump 3 as shown in FIG.

[0029]

As described above, in the self-propelled dredging device according to the present invention, the main traveling carriage for moving the dredging machine suspension wire for suspending the dredging machine from the hull in the longitudinal direction of the hull, and A dredger traversing carriage that traverses the width of the hull above and continuously moves it to an arbitrary position within the opening, and at the bottom of the water, a dredger moving wire that pulls the dredge from the front-back direction and moves it in the front-back direction, Since the dredger moving wire is moved in the width direction of the hull via the wire pole, the dredge is moved synchronously in the moving direction of the suspension wire with the wire pole traverse carriage, so that the dredge can be continuously operated even when the water depth is deep. It is possible to perform dredging by moving it to the required direction, and the ship maneuvering time is shorter than the conventional method, and the work efficiency is improved, which is economical. In addition, even if the water depth is deep, the dredging excavation trace can be finished smoothly.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a self-propelled dredge device according to the present invention.

FIG. 2 is a plan view of the self-propelled dredge device shown in FIG.

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a locus diagram showing a dredging locus of the dredging machine according to the apparatus of the present embodiment.

FIG. 5 is a side view of a conventional dredging device.

[Explanation of symbols]

 1 Dredger 2 Pump Suspension Device 3 Submersible Sand Pump 4 Dredge Machine 5 Water Bottom 6 Sediment 7 Sand Discharge Hose 8 Hull 9, 12 Opening 10 Main Traveling Rail 11 Main Traveling Truck 13 Main Traverse Rail 14 Dredging Machine Trapping Truck 15 Dredging Machine Wire 16 Dredge winch 17 Center pulley 18 Hydraulic motor 19 Excavator 20a, 20b Auxiliary traverse rail 21a, 21b Wire pole traverse trolley 22a, 22b Wire pole guide 23a, 23b Wire pole 24a, 24b Wire pole lifting mechanism 25a, 25b Wire pole Lifting wire 26a, 26b, 29a, 29b Pulley 27a, 27b Wire pole winch 28a, 28b Dredger moving wire 30a, 30b Dredge tow winch 31 Operating room 32a-32d Maneuvering winch 33a-33 Maneuvering wire

Claims (1)

[Claims] 1. A self-propelled dredge device in which a dredger is suspended from a hull by a dredge suspending wire to dredge soil at the bottom of the water, and is discharged by a sand discharging hose. An opening is provided for, a main traveling rail is provided on the hull on the left and right of the opening in the front-back direction of the hull, and a main traveling carriage is provided on the main traveling rail so as to be freely movable. A main traverse rail is provided on the main traveling carriage in a direction orthogonal to the main traveling rail, a dredger traversing carriage is provided on the main traversing rail so as to be traversable, and the dredger traversing carriage is provided with the dredge. A dredging machine winch for feeding and hoisting the machine suspension wire and a sand discharging hose reel for feeding and hoisting the sand discharging hose are provided, and a bow and a stern on the hull with respect to the main traverse rail. Auxiliary traverse rails are provided in parallel with each other, and on each of the auxiliary traverse rails, a wire pole traverse trolley that is synchronously traversed with the dredger traverse trolley is provided movably, and each wire pole traverse trolley is underwater. A wire pole protruding upward and downward to the wire pole and a wire pole elevating mechanism for elevating and lowering the wire pole according to the depth of the dredge, and a dredger moving wire for moving the dredge according to the traveling of the main traveling carriage. A self-propelled dredging device, which is equipped with a dredging machine towing winch that winds and winds a pole as a guide.