JPH0624427Y2 - Underwater rubble leveler - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to an underwater gravel leveling machine for leveling rubble stones thrown into a water bottom, and more particularly to a rubble leveling machine suitable for leveling rubble stones in deep water.

(Prior Art) Various methods and devices have been proposed and implemented for leveling rubble in water, but in general, there is a floating method in which a leveling machine is suspended from a work boat and directly operated. It can be divided into a water bottom method in which a self-propelled leveling machine is placed on a rubble layer and operated remotely. Among them, the water-based method has a certain restriction on the water depth as a working distance because the leveling machine must be operated directly from the work boat, and the water-bottom method is used for leveling rubble stones at high water depth (for example, 20 to 30M). There is no choice but to adopt it.

And conventionally, as a leveling machine used for this water bottom system,
An underwater bulldozer with a leveling blade attached to the front surface, a screw device with a leveling screw on the lower surface, or a leveling device with a rolling roller and a leveling rake on the lower surface have been put into practical use.

(Problems to be Solved by the Invention) However, according to the above-described conventional leveling machine, for example, in the case of an underwater bulldozer, traveling becomes difficult if there is a large amount of unevenness, and it becomes necessary to make a reference crown by a diver. Not only that, it is difficult to even out large rubble because it only pushes the rubble with a blade, and since it is necessary to change the direction using a caterpillar, a leveling surface that is carefully leveled when changing direction is used. There was a problem of vandalism.

On the other hand, in the case of a leveling device equipped with a screw device or a compaction roller, the structure is unavoidably complicated, and a large screw or compaction roller is required to increase the uniform leveling efficiency. There was a problem that operating costs increased. Furthermore, these levelers are generally poor in steering,
Not only can the equalization efficiency not be increased as desired, but there is also the problem that the equalizing surface is roughened when changing directions, as with the underwater bulldozer.

The present invention was made in order to solve the problems of the above-mentioned conventional leveling machine, and is an underwater rubble that can perform leveling efficiently and accurately regardless of the size and surface condition of the rubble. The purpose is to provide a leveling machine.

(Means for Solving Problems) In order to solve the above-mentioned conventional problems, the present invention has a frame fixed to an upper turning portion of a backhoe which can be remotely operated by a watertight structure so as to be orthogonal to the turning axis. , At least four extendable support legs capable of lifting the entire backhoe from the ground are provided in a part of the frame located outside the turning range of the lower traveling part of the backhoe with respect to the upper turning part, and the upper part of the backhoe The gist of the present invention is that a water bottom detection device, which is formed by arranging a plurality of acoustic sounding machines side by side, is attached to the swivel portion.

(Operation) In the underwater rubble leveling machine with the above configuration, by using a backhoe having a large action radius and a large excavation capacity, it is possible to level a wide area regardless of the size and surface condition of the rubble and It is possible to drive on the rubble surface where the smoothing is completed, and the smoothing efficiency is remarkably improved. Further, by raising the entire backhoe with the support legs provided on the frame, the lower traveling unit can be swung with respect to the upper swiveling unit, and the direction can be easily changed without roughening the leveling surface. Furthermore, since the frame having the support legs is simply fixed to the backhoe, a leveling machine having a simple structure can be realized.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a backhoe, a lower traveling unit 2 having a caterpillar 2a, and an upper revolving unit 3 rotatably installed on the lower traveling unit 2 via a revolving shaft 1a.
And consists of. This backhoe 1 is a rubble S on the bottom of the water.
It has a watertight structure so that it can be run over, and it can be run by remote control. The backhoe 1 has the same basic structure as the well-known backhoe except that it can be remotely operated from the watertight structure, and an articulated arm having a leveling claw 4 at the tip of the upper swivel part 3. 5
Is provided.

Reference numeral 6 denotes a frame fixed to the upper revolving unit 3 so as to be orthogonal to the revolving axis 1a, and the frame 6 is provided with four support legs 7, 7 ... Support leg 7
Has an extension distance sufficient to lift the entire backhoe on the rubble S (FIG. 1), and is attached to the frame 6 so as to be located outside the turning range of the lower traveling unit 2 with respect to the upper turning unit 3 of the backhoe 1. (Fig. 2). That is, when the backhoe 1 is turned in the lifted state, since the upper turning portion 3 is restrained, the lower traveling portion 2 turns relatively, and as a result, the backhoe 1 can change its direction on the spot. Become.

Further, a water bottom detection device 8 is provided on the upper turning portion 3 of the backhoe 1. This water bottom detection device 8 includes an upper turning portion 3
A frame 8a rotatably stopped by a shaft 9 and a plurality of acoustic sounders 8b attached to one side of the frame 8a are provided, and a bridge is provided between the frame 8a and the upper swivel unit 3. The cylinder 10 allows the whole to be tilted and lowered. That is, the frame 8a is brought into a horizontal state by the operation of the cylinder 10 as shown in FIG. 1, and the upper turning portion 3 is turned with respect to the lower traveling portion 2 of the backhoe 1, so that the surface state of the rubble stone S to be leveled is set. It can be detected in a wide range with high accuracy.

Here, as shown in FIGS. 3 and 4, the leveling claw 4 includes a substrate 4a that serves as a mounting portion to the arm 5 and the substrate 4a.
It is similar to a so-called ripper, which is composed of a plurality of claw bodies 4b attached to a, and is characterized in that the claw body 4b is formed linearly. As a result, pressure can be applied to the rubble layer S in both the pushing and pulling directions, and the leveling can be easily performed regardless of the size and existing state of the rubble stone.

A pipe 11 for accommodating a hydraulic pipe for driving each cylinder or a signal wire for remote operation is attached to the upper turning portion 3 of the backhoe 1. Further, these pipes and wirings are connected to a work ship (not shown) floated on the water surface above the leveling machine 20. The work boat is provided with a display device for taking in image data such as data regarding the operation of the backhoe 1 or data regarding the water bottom condition obtained by the water bottom detecting device 8.

The operation of the above-structured rubble leveler will be described below.
It will be described with reference to FIGS.

First, the work boat is towed and positioned above the leveling target point, and the leveling machine 20 is lowered onto the rubble S. The rubble at the point where the leveling machine 20 is lowered is leveled in advance by the diver. Next, while the caterpillar 2a is landed, the frame 8a of the water bottom detection device 8 is set in a horizontal state, the upper turning portion 3 is turned, and the acoustic sounding machine 8b is used to detect the surface state of the rubble stone layer S at the target point. . Then, the support leg 7 is extended to lift the entire backhoe 1 horizontally, and the leveling claw 8 at the tip of the arm 7 is moved onto the rubble stone layer S to perform leveling work (FIG. 1).
At this time, the rubble layer S is displayed on the display device on the work ship (not shown).
In a state where the arm 5 including the leveling claws 4 is lapped on the surface shape of, the operating state of the arm 5 is displayed in real time, and the worker shakes the arm 5 in the front-back direction while looking at this screen. Since the leveling claw 4 has the claw body 4b extending in a straight line, pressure can be applied to the rubble in both directions of pushing and pulling, and the rubble can be easily leveled regardless of the size or the existing state of the rubble. You can do it.

After finishing the leveling work within the radius of action of the arm 5 of the backhoe 1, the support leg 7 is contracted to rotate the upper turning part 3, and the leveling target position is detected again by the acoustic sounding machine 8b.
Upon confirming that the leveling condition is good, as shown in FIG. 5, the arm 5 and the frame 8a of the water bottom detection device 8 are lifted upward and the caterpillar 2a is driven to move the leveling machine 20 to the next leveling target point. Then, the above operation is repeated again to execute the next leveling work. If a change in direction is required for this movement, the support leg 7 may be extended and the backhoe 1 may be turned, whereby the lower traveling unit 2 is turned relative to the backhoe 1, and the backhoe 1 may be moved on the spot. You can change direction.

Here, the leveling work using the leveling machine 20 is performed by, for example,
This can be done as shown. That is, the leveling area
21 is divided into zones according to the action radius of the backhoe 1, such as I, II, III ..., and the start leveler is run on the I zone as indicated by the arrow A. The II zone parallel to is simultaneously leveled. After finishing the leveling of the I and II zones, the support legs 7 are extended on one side of the I zone to change the direction of the backhoe 1, and the leveling machine 20
Is moved onto the II zone as indicated by arrow B. Subsequently, the zone II is run as indicated by the arrow C, and the zone III is leveled during this time, and thereafter the leveling machine 20 is run as indicated by the arrows D, E, and F to successively finish the adjacent zones. .

In this way, the leveling machine 20 can travel on the rubble surface that has been leveled, so that leveling work can be performed extremely efficiently.

(Effect of Device) As described above in detail, the underwater gravel leveling machine according to the present invention uses the backhoe, which has a large action radius and a large excavation ability, and therefore, it may be different depending on the size and surface condition of the rubble. Therefore, the leveling work can be performed with high efficiency. In addition, the backhoe can be run on a rubble surface after completion of leveling, and the supporting legs can lift it up to change the direction on the spot, so the backhoe can be moved smoothly without roughening the leveling surface. It is possible to expand the leveling range with high efficiency. Moreover, since the water bottom detection device can be turned integrally with the upper turning part of the backhoe to detect the surface condition of the rubble layer,
The surface condition of the rubble layer can be confirmed before and after the leveling work, and the leveling accuracy can be significantly improved, and the utility value of the present invention will be greatly enhanced.

Further, since the frame having the supporting legs is simply attached to the backhoe, there is an effect that it is possible to realize an underwater leveling machine having a simple structure, which is cheap in construction cost and operation cost.

[Brief description of drawings]

FIG. 1 is a front view of an underwater rubble leveler according to the present invention, and FIG.
The figure is also a plan view thereof, FIGS. 3 and 4 are side views and a plan view of a part of the leveling claw, FIG. 5 is a side view showing how the leveling machine is used, and FIG. It is explanatory drawing which shows the execution aspect of the rubble stone leveling by this leveling machine. 1 …… Backhoe 2 …… Lower traveling part 3 …… Upper turning part 4 …… Leveling claw 5 …… Arm 6 …… Frame 7 …… Supporting leg 8 …… Water bottom detection device

Claims (1)

[Scope of utility model registration request] 1. A watertight structure, wherein a frame is fixedly mounted on an upper turning part of a backhoe which can be remotely controlled, and is located outside the turning range of a lower running part of the backhoe with respect to the upper turning part. At least four extendable support legs capable of lifting the entire backhoe from the ground are provided in the frame part, and a water bottom detection device having a plurality of acoustic sounding machines arranged side by side on the upper turning part of the backhoe is attached. Underwater rubble leveling machine characterized by.