JPS6172128A - Bucket dredger with cutter - Google Patents

Abstract

PURPOSE:To exploit resources present very deep in a ground at low cost, by a method wherein cutter wheels, each having projecting blades for excavation, are mounted to both ends of the rotary shaft of a bucket conveyor, and the blades are attached in an inclining manner to the cutter wheel. CONSTITUTION:Cutter wheels 7 are attached to both ends of a rotary shaft 8 of a bucket conveyor at the forward end of a ladder 3, and plural blades 9 for excavation are attached in a projecting manner to the outer periphery of the cutter wheel. The blades 9 for excavation are attached in an inclining manner so that excavated soil is discharged in a space where buckets for conveyance between the cutter wheels 7 pass. A cover 10, with which the whole of buckets 6 for conveyance is covered, is placed to the upper surface of the ladder 3 so that sea surface is prevented from contamination by spilled excavated soil. This causes reduction of a building cost of a bucket dredger ship, and reduction of a driving power for the bucket conveyor.

Description

[Detailed Description of the Invention] [Field of Application of +1i Length] 2] The present invention relates to a dredger, and particularly to a bucket dredger with a cutter equipped with a bucket conveyor for transporting excavated material from the seabed to a shipboard.

[Conventional technology]

In a conventional bucket dredger, as shown in FIG. 4, a rudder 3 extending to the seabed 2 is swingably attached to a fleet 1.

A plurality of buckets 4 are connected in an endless manner so as to move along the outer periphery of the ragout 3 from the seabed 2 to above the fleet 1, thereby forming a bucket conveyor.

These buckets 4 are moved along the outer periphery of the rudder 3 by the rotation of a bucket drive gear 5 provided at the base end of the rudder 3, and as the buckets 4 move, the seabed at the bottom end of the rudder 3 2, bucket 4
excavates and scoops up the earth and sand, and transports it from seabed 2 to fleet 1.

[Problem that the invention seeks to solve]

However, in such a conventional bucket dredger, in order to use the buckets 4 to excavate the hard ground on the seabed 2, it is necessary to make each of the buckets 4 a heavy structure, which increases the weight of the entire bucket conveyor. There is a problem that it becomes thicker.

In particular, in a bucket dredger for the purpose of mining resources in deep waters, a large number of buckets 4 are connected, so the weight of the rags 3 and buckets 4 becomes extremely difficult. Dredger jl! There is a problem that the cost increases.

The present invention aims to solve these problems, and describes the structure of the bucket and its driving power:
. The purpose of this project is to develop a 1:1 cutter bucket dredger that can be used to extract resources at great depths at low cost.

tI! [Means for determining the point of illumination] For this reason, the cutter one-inch bucket dredger of the present invention has a lagoon extending from the fleet to the seabed and a lagoon + storage (
A bucket dredging l1ar equipped with a bucket conveyor consisting of a plurality of buckets connected in an endless manner so as to be able to move to the ragout, and several driving mechanisms for the same brush and toffun conveyor is suspended, and the above-mentioned at the tip of the ragout is suspended. Cutter wheels each having a plurality of digging blades protruding from the outer periphery are attached to both ends of the rotating shaft of the bucket conveyor.
It is characterized in that the blade is attached at an angle to the rotor wheel so as to discharge the excavated soil to the passage side of the bucket.

[For production]

In the above-mentioned bucket with canter of the present invention, the dredger rotates the cutter wheel and the bucket conveyor while moving the lagoon from side to side, thereby excavating seabed ground with the excavation blade of the cutter wheel, and excavating this soil. is guided to the bucket by the slope of the blade, and dredging work is carried out.

〔Example〕

Hereinafter, a bucket dredger with a canter as an embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a side view showing an enlarged tip of the lagoon, and Fig. 2 is a cross section taken along the line ■-■ of Fig. 1. FIG. 3 is a sectional view taken along the line ■-■ in FIG. 1.

As shown in Figure 1, there is a ZI in fleet 1 (see figure).
It is stored in the bottom 2 of the ladder 2 and the extended lagoon 3 or the floating town f1, and the bucket 6 for funerals with one tier is carried from the seabed 2 to the fleet 1 along the outer periphery of this ladder 3. They are connected in an endless manner so that they can move up to two buckets, either on a bucket conveyor or horizontally.

2J'l: The conveying bucket 6 is transported by a bucket jI and a 12-movement carriage 5 (see Fig. 1) as a driving mechanism of a bucket conveyor installed at the end of the ladder 3.
The outer circumference of rudder 3) ``,・It is designed to move.

-)j, As shown in Figures 1 and 2, there are seven ts on both sides of the rotating shaft 8 of the bucket conveyor at the tip of the ladder 3.
It is equipped with cutter wheels 7 and 7 having a plurality of digging blades J projecting from the outer periphery at equal intervals, and 1 and 2 j'.
When the eyelet 13 is moved, it rotates via a rotation shaft 3, and the transportation bucket 6 is arranged so that it can pass through the space therebetween.

In order to discharge the excavated plate 3 to a space where the conveyance bucket F6 between the cutter wheels 7.7 passes, as shown in FIG. 2.3, the cutter wheels 7. It can be installed at an angle on the outer circumference of 7.

In addition, the upper surface of Ladder 3 was covered with waves while the excavated soil was being transported.

In order to prevent the top of the excavation from spilling due to tidal currents, movement of the ladder 3, etc. and polluting the sea surface, a cover '-1n is provided to cover the entire transport bucket 6.

Since the bucket dredger with a cutter of the present invention is configured as described above, while moving the rudder 3 from side to side,
Dredging work is performed by rotating the transport bucket 6 and cutter wheel 7.

At this time, the ground on the seabed 2 is excavated by the excavation blade 9 attached to the outer periphery of the cutter wheel 7, and this excavated soil is transferred to the υ cutter wheel 7.7 by the inclination of the blade 9.
After being discharged into the passage space of the transport drum/toro between them, it is scooped up by the transport bucket 6 and transported.

In this way, the transportation bucket 6 only scoops up the excavated soil excavated by the excavation blade 9 and transports it once to the fleet 1, so the strength for excavating hard ground is as follows.
Just hold it on the excavation blade 9, for transportation/\care)
(6) (This is important, and the transport bucket 6, the connection part of the transport bucket 6, and the ladder 3 can be made light in structure. Therefore, the construction cost of the bucket dredger can be reduced.

1, Y (near (1) A bucket dredger that performs tributary mining, etc. is equipped with transport bucket 6 and 1 rudder 3.
The weight of τ1) has been significantly reduced, and the power for driving the bucket conveyor is also II! ；iWi″Ckiru.

〔Effect of the invention〕

As described in detail, the bucket dredger with a cutter of the present invention includes a ladder extending from inside the ship to the seabed;
A conveyor consisting of a plurality of buckets connected endlessly along the outer circumference of the rudder from the seabed to the ship, and the drive machine for the bucket conveyor +? In a bucket dredger lacking Q, cutter wheels each having a plurality of excavation blades protruding from the outer periphery are attached to both ends of the rotary shaft of the bucket conveyor at the tip of the rudder, However, the excavated soil can be transferred to the passage section of the bucket/throat (which is attached at an angle to the cutter wheel in order to discharge it to Ill, which has a simple construction and has no dog-like effect). I can do it.

(1) Is it possible to make the bucket and rudder light in structure? As a result, the construction cost of bucket dredgers can be reduced (particularly for bucket dredgers used for resource extraction in Ohodo), the weight of the rudder and rudder has been significantly reduced, and the weight of the bucket dredger has been significantly reduced. The power can also be destroyed by one person.

(Z) The shape of the drilling blade depends on the hardness of the seabed ground1.
Since the strength can be easily changed, dredging efficiency can be improved.

[Brief explanation of drawings]

Figures 1 to 3 show a force/ter bucket dredger as an embodiment of the present invention; Figure 1 is an enlarged side view of the tip of the rudder; ■-I[
Cross-sectional view, Figure 3 is a cross-sectional view taken along ■-■ of Figure 1, and t54
The figure is a side view showing a conventional bucket dredger. 1...GIGH book, 2...i last bottom, 3...ladder, 5...
・)＼Kenotofunheya! Drive (as a substitute lecturer)\Kenoto Inkiya, (5...transportation) 11 bucket, 7...power/knotter wheel, U...rotating shaft, 9...flade for excavation, 10...force 1< -0 Return 1 (Science A, fP Physician Yoshihiko Iinuma Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] A bucket conveyor consisting of a ladder extending from the fleet to the seabed, a plurality of buckets connected in an endless manner so as to be able to move along the outer circumference of the ladder from the seabed to the shipboard, and a drive mechanism for the bucket conveyor. In the bucket dredger, cutter wheels each having a plurality of excavation blades protruding from the outer periphery are attached to both ends of the rotating shaft of the bucket conveyor at the tip of the rudder,
A bucket dredger with a cutter, characterized in that the blade is attached to the cutter wheel at an angle so as to discharge the excavated soil to the passage side of the bucket.