JP2003105797A - Waterborne work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waterborne work machine transformed to a land work machine only by detaching a float. SOLUTION: A machine frame 2 is provided with a work machine 3 and a traveling apparatus 4 to forma land work machine 1, and the traveling apparatus 4 is provided with a float 20, and a spud 30 is vertically movably installed on the float 20 to form the waterborne work machine. By this arrangement, when the float 20 is detached, the spud 30 can be simultaneously detached, so that waterborne work machine can be transformed to the land work machine only by detaching the float 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface working machine mainly for dredging work in a shallow harbor or a estuary with a large tide difference.

[0002]

2. Description of the Related Art As a surface work machine for dredging work, for example, a mud work machine equipped with a float and a sbat has been proposed. Specifically, the mud work machine,
A truck frame with buoyancy so that the working machine is mounted on the machine body and the machine body has a remarkably low ground pressure,
A crawler type traveling device in which crawler belts are wound is attached to it. This mud work machine can run and work on mud above the ground pressure of the machine. The above-mentioned mud work machine is a track frame in a track type traveling device,
A floating work machine is installed with a vertically movable svat and a floating work machine.

This floating work machine floats on the surface of water by the buoyancy of a float and is towed by a ship or mounted on a barge for navigation. At the time of work, the sbat is lowered and pierces the bottom of the water to support the machine body, and the work machine is operated in this state.

[0004]

When the float work is removed from the above-mentioned water work machine to make it a mud work machine, the subattack is obstructed. For this reason, the float and the subattack are respectively removed, and the work is troublesome.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to provide a surface work machine which can be easily made into a land work machine simply by removing a float.

[0006]

[Means for Solving the Problems and Actions / Effects] The first invention is a surface work machine in which a float 20 and a stub 30 are attached to the land work machine 1, and the float 20 is mounted on the traveling device 4 of the land work machine 1. Installation, this float 20
The water work machine is characterized in that a vertically movable slatt 30 is attached to the.

According to the first aspect of the present invention, by removing the float 20, the bat 30 can be removed at the same time, and the trouble of removing the bat 30 is unnecessary. Therefore, the land working machine can be easily made by simply removing the float 20.

A second aspect of the present invention is the above-mentioned floating work machine according to the first aspect of the present invention, in which a float 20 is attached with a vertically movable and up-and-down freely movable butt 30.

According to the second aspect of the present invention, by moving the batts 30 upward and laying them down, the batts 30 can be stored in a horizontal position above the float 20. Therefore, the stability is good at the time of sailing on the water, and the subat 30 does not hinder the sailing. Especially, it doesn't get in the way when passing under the bridge.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a land work machine 1 has a work machine 3 and a traveling device 4 mounted on a machine body 2. In the machine body 2, an upper machine body 6 is attached to a lower machine body 5 by a revolving mechanism 7 so as to be freely rotatable. A driver's cab 8, a power source 9 and the like are attached to the upper body 6. The working machine 3 includes a boom 10 vertically swingably attached to an upper machine body 6, an arm 11 vertically swingably connected to the boom 10, and a work tool such as a bucket attached to a tip portion of the arm 11. Have twelve. The traveling device 4 includes a track frame 13 attached to both left and right sides of the lower body 4, a track 14 rotatably mounted around the track frame 13, a sprocket 15 for rotating the track 14, and an idler 1.
It is a crawler type traveling device including 6 and the like. The track frame 13 has buoyancy, the track frame assembly (crawler type traveling device) around which the crawler belt 14 is wound has a significantly small ground pressure, and the above-mentioned land work machine 1 is a mud work machine. The land-based working machine 1 may be a normal general land-based working machine having a crawler type traveling device provided with a crawler belt having a large ground pressure or a land-based working machine having a wheeled type traveling device.

A float 20 is detachably attached to the traveling device 4, for example, each track frame 13. The height (vertical dimension) of this float 20 is the track frame 1
The lower surface 20a of the crawler belt 1 is
4, the upper surface 20b is lower than the upper crawler belt 14. Because it is like this, the float 20
It is possible to travel on land by rotating the crawler belt 14 with the attached. The length (front-back dimension) of the float 20 is longer than the length of the track frame 13, and the front and rear ends of the float 20 project forward and rearward of the front and rear portions of the crawler belt 14. Further, the front end portion and the rear end portion of the float 20 are provided with a drainage angle in order to improve the propelling property on muddy water.

A pair of front and rear mounting cross members 21 are detachably attached to the outer surface of each track frame 13. For example, as shown in FIG. 3, a flange 21a fixed to the end of the mounting cross member 21 is fixed with a bolt 21b. The horizontal mounting member 21 is a long member having a rectangular cross section. Each float 2
A pair of front and rear outer mounting brackets 22 and inner mounting brackets 23 are fixed to the outer surface and inner surface of No. 0, respectively. Each of the outer mounting bracket 22 and the inner mounting bracket 23 projects upward from the upper surface 20b of the float 20 and has a mounting hole 24. The mounting hole 24 has a shape, for example, a rectangular shape, into which the mounting lateral member 21 is fitted.

The mounting cross member 21 is fitted over the mounting hole 24 of the outer mounting bracket 22 and the mounting hole 24 of the inner mounting bracket 23 as shown in FIG. 3, and protrudes from the outer mounting bracket 22. A retaining member, for example, a pin 25 is inserted in the portion. Therefore, the float 20 can be removed by pulling out the pin 25.

Vertically movable and up-and-down movable batts 30 are attached to the front and rear portions of each float 20. For example, brackets 31 are fixed to the upper surface 20b of the float 20 on the front side and the rear side. A guide tube 32 is attached to each bracket 31 by a pin 33 so as to be vertically swingable. The guide 30 is slidably fitted into the guide 30. In this embodiment, the subat 30 is a long member having a rectangular cross section, and the guide tube 32 is also rectangular in cross section, so the subat 30 slides on the guide tube 32 without rotating.

The upper surface 20b of the float 20 and the guide tube 32
A cylinder 34 is attached to the above. When the cylinder 34 is extended and operated, the guide cylinder 32 is in the vertical posture.
When the cylinder 34 is contracted and actuated, the guide cylinder 32 takes a horizontal posture.

The guide cylinder 32 is provided with a subattack moving mechanism 3
5 is attached. For example, a motor-driven winch 36 is attached to the guide cylinder 32, and a wire 37 that is wound by the winch 36 and paid out is connected to the tip of the butt 30. Therefore, the guide cylinder 32 is set in the vertical posture, and the motor 36a is driven to wind the wire 37, whereby the subat 30 moves upward along the guide cylinder 32,
By paying out the wire 37, the subat 30 moves downward along the guide tube 32 by its own weight.

Because of this, by placing the guide cylinder 32 in the vertical posture and the subbat 30 in the standing posture, the subbat 30 can be moved up and down. At the time of work, the subattack 30 is lowered and butted against the bottom of the water to be supported. When the guide cylinder 32 is set in the horizontal posture and the subtilt 30 is in the lying posture while the subbat 30 is moved upward, the subbat 30 is stored sideways above the float 20 as shown by an imaginary line in FIG. 2. Therefore, the aircraft 2 is stable during navigation on the water, and the subat 30 does not get in the way. In particular, the subat 30 does not get in the way when passing under the bridge.

The working tool is not limited to the bucket 12 and may be a clam shell, a sand pump or the like. The sbat moving mechanism 35 may be configured such that a rack is attached to the stub 30, a pinion is attached to the guide cylinder 32, and the sbat moving mechanism 35 is rotated by an electric motor or a hydraulic motor.

The cylinder 34 is adapted to expand and contract using the pressure oil supplied to the traveling motor that rotates the sprocket 15 that rotates the crawler belt 14. For example, two ports on the output side of the traveling direction switching valve provided in the upper body 6 are connected to the switching valve provided in the lower body 5 via a swivel joint provided at the center of rotation of the swing mechanism 7. When this switching valve is in the first position, it is connected to the traveling hydraulic motor, and when it is in the second position, it is connected to the cylinder 34.

[Brief description of drawings]

FIG. 1 is a side view of a surface work machine.

FIG. 2 is a plan view in which a working machine is omitted.

FIG. 3 is a perspective view of a subat mounting portion.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Land work machine, 2 ... Airframe, 3 ... Working machine, 4 ... Traveling device, 20 ... Float, 21 ... Mounting cross member, 22 ... Outer side mounting bracket, 23 ... Inner side mounting bracket, 30 ... Sbutt, 32 ... Guide cylinder, 34 ... Cylinder, 35 ... Subt moving mechanism, 36 ... Winch, 37 ... Wire.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Hasegawa             5-1-3 Moriyamacho, Minokamo City, Gifu Prefecture

Claims (2)

[Claims] 1. A float (20) on a land work machine (1).
A float working machine (4) of the land working machine (1) is provided with a float (20), and the float (20) is vertically movable.
0) is attached to the surface work machine. 2. The surface work machine according to claim 2, wherein a float (20) is provided with a vertically movable and up-and-down movable sbat (30).