JPH11247221A - Water bottom self-propelled dredge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widen the transverse moving range of a dredge cutter as compared with the whole size of a dredge. SOLUTION: A cutter boom 2 is provided projectingly frontward of a base body 1 and a dredge cutter 3 is provided on the front end of the cutter boom 2. A spud boom 4 is provided projectingly rearward of the base body 1 so that it can freely make a vertical turning in a form of moving relatively to the base body 1 in the vertical and longitudinal directions and a spud 5 is provided on the rear of the spud boom 4 so that it can freely turn on its axis in the horizontal direction. Supporting legs 6, 6 are provided on the base body 1 so that it can freely descend and ascend and slewing crawlers 7, 7 are provided on the lower ends of the supporting legs 6, 6 in the horizontal direction. The spud boom 4, the base body 1 and the cutter boom 2 are horizontally slewed centering the spud 5 by driving the slewing crawlers 7, 7 with the 5 planted in the water bottom and the dredge cutter 3 is horizontally moved on a large scale. The dredge cutter 3 is moved forward by making the spud boom 4 make a turning movement with the spud 5 planted in the water bottom and advancing the base body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water bottom self-propelled dredging machine which performs a dredging operation while moving the water bottom by itself.

[0002]

2. Description of the Related Art Generally, a dredging operation of a water bottom is performed from above water by a pump dredger, a grab dredger, or the like.
These are susceptible to sea conditions such as waves, and work efficiency may be reduced due to interruption or suspension of work. Therefore, there is a case where a water-bottom self-propelled dredging machine (a dredging robot) that performs dredging while moving on the water bottom that is less affected by waves and the like is used in some cases.

[0003] In a conventional water bottom self-propelled dredging machine, as disclosed in, for example, Japanese Patent Application Laid-Open No. 5-187036, a base (main body) is provided by two sets of supporting legs which move relatively to each other, so that the water bottom can be moved by itself. A boom (ladder) is provided at the front of the base so as to swing freely from side to side, and a dredge cutter is provided at the tip of the boom. The base is moved forward while swinging the boom from side to side. Then, dredging is performed by a dredge cutter.

[0004]

As described above, when the dredging cutter is laterally moved by swinging the boom, the moving range (width) of the dredging cutter is limited by the length of the boom. Since the size of the dredging machine becomes shorter than the size of the base, the dredging work proceeds with a narrow dredging width, and there is a problem that the working efficiency is lower than the size of the dredging machine.

The present invention has been made in view of such a conventional problem,
The purpose of the present invention is to provide a water-bottom self-propelled dredging machine in which the lateral movement range of the dredge cutter is larger than the whole size and the work efficiency is high.

[0006]

SUMMARY OF THE INVENTION The features of the present invention for solving the conventional problems as described above and achieving the intended purpose are as follows.
A base that contains the equipment, a cutter boom that protrudes forward from the base, and a spud boom that protrudes rearward from the base, a dredge cutter that dredges a water bottom is provided at a front end of the cutter boom, At the rear end of the spud boom, a spud protruding from the bottom is rotatably provided, and the base is provided with a turning crawler running horizontally on the bottom, and the base and the spud boom are relatively positioned. The spud boom, the base body, and the cutter boom are pivoted laterally around the spud by traveling of the turning crawler in a state where the spud is protruded to the bottom of the water, movably connected back and forth, The relative movement between the base and the spud boom causes the base and the spud to alternately advance.

The spud boom has a front end connected to the base so as to be pivotable up and down and up and down. A support leg is provided on the base so as to be able to move up and down. A turning crawler is provided at a lower end of the support leg. Preferably, the base is advanced by the rotation of the spud boom, and is supported by the support legs against a change in height accompanying the advance.

The support leg is provided on the base so as to be rotatable back and forth, and the base or the cutter boom is provided with an auxiliary leg so as to be able to move up and down. The base is supported by the support leg during turning. The support leg may be supported by the inclined support leg when moving forward, and may be supported by the auxiliary leg when returning from the inclined state of the support leg.

An auxiliary leg is provided on the base so as to be able to move up and down, and a crawler for traveling on the bottom of the water is provided at a lower end portion of the auxiliary leg. At times, it may be supported by the auxiliary legs.

[0010] Further, a float tank may be provided on the base so that the buoyancy can be adjusted, and the base may be supported by supporting legs during turning, and may be supported by the buoyancy of the float tank during forward movement.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.
8 will be described. In the figure, 1 is a base (body),
2 is a cutter boom (ladder), 3 is a dredge cutter, 4
Is a spud boom (ladder), 5 is a spud, 6 is a supporting leg, 7 is a crawler for turning, and 8 is an auxiliary leg. Base 1
Houses equipment (not shown) such as a dredge pump, and a float tank is provided so as to be able to adjust buoyancy.

At the front end of the base 1, a cutter boom 2 is provided so as to protrude forward from the base 1, and the cutter boom 2 is connected to the base 1 via a rotating shaft 2a and a driving cylinder 2b. Vertical direction (up and down and front and back)
It is freely rotatable. A dredge cutter 3 is provided at the front end of the cutter boom 2 via a rotation shaft 2c.

On the other hand, a spud boom 4 is provided at the rear end of the base 1 so as to protrude rearward from the base 1.
The spud boom 4 includes a rotating shaft 4a, a driving cylinder 4b.
, It is rotatable in the vertical direction with respect to the base 1. And, at the rear end of the cutter boom 4, a rotating shaft 4c is provided.
, A supporting member 5a is provided.
A vertical (vertical) spud 5 is provided on a so as to be rotatable in the horizontal direction and protrude and retreat in the vertical direction (up and down) via the drive cylinders 5b and 5b.

Support members 6a, 6a are provided at the front portions on both left and right ends of the base 1 so as to be rotatable in the vertical direction. The support members 6a, 6a are provided with vertical support legs 6, 6, respectively. Is provided so as to be rotatable in the lateral direction and to be able to move up and down by a rack and pinion mechanism so as to protrude downward from the base 1. At the lower ends of the support legs 6, 6, turning crawlers 7, 7 are provided in a horizontal direction. Further, auxiliary legs 8, 8 are provided at the center of the base 1 so as to be able to move up and down by a rack and pinion mechanism so as to protrude downward from the base 1.

The water-bottom self-propelled dredger is constructed as described above. To install the dredger on the water bottom, as shown in FIG. 5 (b), support legs 6, 6, auxiliary legs 8, 8 The lower ends of the turning crawlers 7, 7 at the lower ends of the support legs 6, 6 and the lower ends of the auxiliary legs 8, 8 are grounded to the bottom of the water, with the
The base 1 is supported by supporting legs 6 and 6 and auxiliary legs 8 and 8. Then, the spud boom 4 is rotated downward to lower the spud 5 to the bottom of the water, and press the spud 5 into the bottom of the water.

Then, in order to dredge the water bottom, as shown in FIG. 1, the auxiliary leg 8 is raised, the base 1 is supported by the spud boom 4 and the support legs 6, 6, and the cutter boom 2 is supported.
Is rotated downward to lower the dredging cutter 3 to the bottom of the water. Then, the turning crawler 7, 7 is driven to rotate (turn) the spud boom 4, the base 1, and the cutter boom 2 in the lateral direction about the spud 5, and the dredging cutter 3 is largely enlarged in the lateral direction. Move back and forth.

That is, since the dredging cutter 3 is moved in the lateral direction by rotating substantially the entire dredging machine in the lateral direction, the dredging cutter 3 can be laterally moved in a wide range even with a small dredging machine. The dredging operation can be performed efficiently with a wide dredging width.

In order to advance the base 1, FIG.
As shown in (a), with the spud 5 protruding from the bottom of the water, the spud boom 4 is rotated so as to protrude backward from the base 1, and the base 1 is advanced. At this time, the base 1
The support legs 6, 6 supporting the front are inclined forward. next,
As shown in FIG. 3B, the auxiliary legs 8, 8 are lowered,
The base 1 is supported by the spud boom 4 and the auxiliary legs 8, 8, and the support legs 6, 6 are raised to turn the crawlers 7, 7.
Is separated from the water bottom, and the support legs 6, 6 are returned to the vertical state. Then, as shown in FIG. 3 (c), the support legs 6, 6 are lowered again, the turning crawlers 7, 7 are grounded, the base 1 is supported by the spud boom 4, and the support legs 6, 6, and the auxiliary legs are provided. Increase 8,8.

As described above, the dredging cutter 3 is largely reciprocated in the lateral direction while the spud 5 is pushed up to the bottom of the water, and the base 1 is sequentially advanced to perform the dredging operation.
As the base 1 is advanced, as shown in FIG. 4, the spud boom 4 projects to the rear as much as possible, and the base 1 cannot move forward any more.

To replace the spud 5, first, FIG.
As shown in (a), the auxiliary legs 8, 8 are lowered, the base 1 is supported by the support legs 6, 6, and the auxiliary legs 8, 8, and the spud 5 is pulled out from the water bottom. Then, as shown in FIG. 5B, the support legs 6, 6 and the auxiliary legs 8, 8 are projected downward from the base 1, and the base 1 and the spud boom 4 are raised. Then, rotate the spud boom 4 downward and forward,
The spud 5 is advanced and lowered, and the spud 5 is pressed into the water bottom.

Further, as shown in FIG. 6, maintenance during the operation of the dredging machine can be easily performed by rotating the cutter boom 2 upward and floating the dredging cutter 3 on the water. As shown in FIG. 7, the cutter boom 2 and the front portion of the base 1 can be floated on the water while the spuds 5 are pushed up to the bottom of the water. You can return. In addition, as shown in FIG.
By rotating the cutter boom 2 and the spud boom 4 upward, the base 1 is lifted by the buoyancy of the float tank,
It can be suitably performed.

In the above-described embodiment, the auxiliary leg 8 is provided on the base 1 so as to be able to move up and down.
Has been described in a state where the inclined support leg 6 is returned to the vertical position while the support leg 8 is supported by the auxiliary leg 8, but as shown in FIG.
The auxiliary leg 8 may be provided on the cutter boom 2. The rest is the same as the above-described embodiment.

In the above-described embodiment, the support leg 6 is provided so as to be rotatable (tilted) with respect to the base 1, so that the base 1 can be moved forward when the base 1 is advanced. As shown in FIG. 10, when the advancing crawler 9 is provided at the lower end of the auxiliary leg 8 to advance the base 1, as shown in FIG. 10, the base 1 is supported by the cutter boom 4 and the auxiliary leg 8. You may make it. The rest is the same as the above-described embodiment.

In the above-described embodiment, the support leg 6 is provided so as to be rotatable (tilted) with respect to the base 1, and the base 1 is moved forward when the base 1 is advanced.
Further, the case where the auxiliary legs 8 are provided on the base 1 so as to be able to move up and down, and the inclined support legs 6 are returned to the vertical state while the base 1 is supported by the auxiliary legs 8 after the base 1 is advanced. However, as shown in FIG. 11, when the base 1 is advanced, the base 1 may be supported by the buoyancy of the float tank. The rest is the same as the above-described embodiment.

[0025]

As described above, the water-bottom self-propelled dredge according to the present invention comprises a base housing equipment, a cutter boom protruding forward from the base, and a spud boom protruding rearward from the base. Equipped, at the front end of the cutter boom,
A dredge cutter for dredging the water bottom is provided, a spud protruding to the water bottom is rotatably provided at the rear end of the spud boom, and a turning crawler running on the water bottom is provided on the base in a lateral direction, and the base and the spud boom are provided. The spud boom, the base and the cutter boom are swiveled in the lateral direction around the spud by traveling of the turning crawler in a state where the spud is protruded to the bottom of the water, so that the spud and the spud can be relatively moved back and forth. By alternately advancing the substrate and the spud by relative movement with respect to the boom, the dredging cutter is advanced by the advancing of the substrate, and is largely traversed by the lateral rotation of the spud boom, the substrate and the cutter boom. The dredging operation can be performed efficiently with a wide dredging width.

The front end of the spud boom is connected to the base so as to be rotatable up and down and up and down. A support leg is provided on the base so as to be movable up and down. A turning crawler is provided at the lower end of the support leg. By moving the spud boom forward by turning it and supporting the height fluctuations caused by the forward movement by the support legs, the forward moving mechanism and the turning mechanism can be simplified.

Further, the supporting leg is provided on the base so as to be rotatable back and forth, and the auxiliary leg is provided on the base or the cutter boom so as to be able to move up and down. The supporting leg is supported by the supporting leg when turning, and the supporting leg is inclined when moving forward. When the support leg returns from the inclined state, it is supported by the auxiliary leg, so that the base can be appropriately advanced.

An auxiliary leg is provided on the base so as to be movable up and down.
At the lower end of the auxiliary leg, a forward crawler that runs on the bottom of the water is provided, and the base is supported by the support leg at the time of turning, and is supported by the auxiliary leg at the time of forward movement.

Further, the float can be adjusted in buoyancy on the base, and the base is supported by the supporting legs when turning and the float is supported by the float of the float tank when moving forward, so that the base can be suitably advanced. .

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of a water-bottom self-propelled dredge according to the present invention, showing a state immediately after a spud is replaced.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view showing a method of advancing the dredge of FIG. 1;

FIG. 4 is a side view showing a state of the dredging machine in FIG. 1 immediately before spud replacement.

FIG. 5 is a side view showing a method of changing spuds of the dredge of FIG. 1;

FIG. 6 is a side view showing a method of maintaining the dredging cutter of the dredge of FIG. 1;

FIG. 7 is a side view showing a method of maintaining the front part of the dredge of FIG. 1;

FIG. 8 is a side view showing a method of maintenance of the whole dredging machine of FIG. 1;

FIG. 9 is a side view showing a second embodiment of the water-bottom self-propelled dredge according to the present invention, showing a method of moving forward.

FIG. 10 is a side view showing a third embodiment of the water-bottom self-propelled dredge according to the present invention, showing a method of moving forward.

FIG. 11 is a side view of a fourth embodiment of the water-bottom self-propelled dredge according to the present invention, illustrating a method of advancing the dredger.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base (body) 2 Cutter boom 2a Rotating shaft 2b Drive cylinder 2c Rotating shaft 3 Dredging cutter 4 Spud boom 4a Rotating shaft 4b Drive cylinder 4c Rotating shaft 5 Spud 5a Support member 5b Drive cylinder 6 Support leg 6a Support member 7 Crawler for turning 8 Auxiliary leg 9 Crawler for forward

Claims (5)

[Claims] 1. A dredge for dredging a water bottom at a front end of the cutter boom, comprising: a base housing equipment, a cutter boom protruding forward from the base, and a spud boom protruding rearward from the base. A cutter is provided, and at the rear end of the spud boom, a spud protruding from the water bottom is rotatably provided. On the base, a turning crawler running on the water bottom is provided laterally, and the base and the spud boom are provided. The spud boom, the base body, and the cutter boom are horizontally moved around the spud by traveling of the turning crawler in a state where the spud is pushed up to the bottom of the water. And the spud boom moves relative to each other, so that the base and the spud advance alternately. Traveling dredge. 2. A spud boom having a front end portion rotatably connected to the base in a front-rear and up-and-down direction, a support leg provided on the base so as to be able to move up and down, and a turning crawler provided at a lower end portion of the support leg. 2. The submersible self-propelled dredger according to claim 1, wherein the base is advanced by the rotation of the spud boom, and is supported by the support legs against a change in height caused by the advance. 3. A support leg is provided on the base so as to be rotatable back and forth, and an auxiliary leg is provided on the base or the cutter boom so as to be able to move up and down. The base is supported by the support leg during turning. The submersible self-propelled dredger according to claim 2, wherein the dredging machine is supported by the support legs that are inclined when the vehicle advances, and is supported by the auxiliary legs when the support legs return from the inclined state. 4. An auxiliary leg is provided on the base so as to be able to move up and down, and a crawler for advancing on the bottom of the water is provided at a lower end portion of the auxiliary leg. 3. The submersible self-propelled dredge of claim 2, sometimes supported by the auxiliary legs. 5. The water bottom according to claim 2, wherein a float tank is provided on the base body so that the buoyancy can be adjusted, and the base body is supported by support legs when turning, and is supported by the buoyancy of the float tank when moving forward. Self-propelled dredge.