Amphibious dredging machine

Abstract

[Problem] The present invention makes it possible to perform dredging work in a wide range of terrain. The purpose of the present invention is to provide an amphibious dredging machine capable of performing stable dredging work by preventing a decrease in moving speed and durability caused by sediment or the like being caught in a float. [Solution] Provided is an amphibious dredging machine comprising: drum-shaped first, second, and third floats that are provided at the bottom of the amphibious dredging machine, and that can rotate independently around a widthwise axis of a machine body, wherein blades are provided in the longitudinal direction of each of the floats so as to extend toward the widthwise central axis of the float, as viewed from the front of the machine body, and the floats each have, at both ends thereof, power units for rotating the float; a first connection part that is provided so as to be rotatable about an axis in a direction perpendicular to an upper plane of the machine body; a rotatable hydraulic excavator; spuds; and a rotatable frame part that is connected to the third float, which is provided at the rear end as viewed from the longitudinal direction of the upper plane of the machine body, and a second connection part connected to a screw part. [Selected drawing] FIG. 1

Description

Amphibious Dredge

[0001] The present invention relates to an amphibious dredger.

[0002] Dredging work involves the use of work vessels called dredgers, such as grab dredgers equipped with grab buckets and backhoe dredgers equipped with backhoes. Dredging work involves removing sediment and sludge, i.e., removing sediment and sludge from areas other than shores or coasts, such as in icy waters, during subsidence or flooding caused by liquefaction due to heavy rain or earthquakes, in wetlands, on soft ground, or underwater. Dredging requires the use of amphibious dredgers that can move both on water and on land. Traditionally, work has been carried out using ship-type or crawler-type dredgers, but for example, amphibious crawler-type dredgers with tracks have issues with durability, such as the tracks getting stuck with sediment or sludge and being damaged when working on soft ground such as in muddy areas where sediment and sludge are mixed together.In addition, the dredger's movement speed drops significantly due to a decrease in propulsion power, which reduces work efficiency.

[0003] To solve this problem, dredgers equipped with propellers on a vehicle with tracks have been developed, but although this has improved the speed of movement on water, soil and sludge still get caught between the tracks and the propeller on soft ground such as in muddy areas, making it impossible to improve the dredger's speed or durability. The problem of reduced speed and durability on water and soft ground, i.e., damage to the vehicle and reduced work efficiency, remains unresolved.

[0004] Patent Document 1 discloses that an amphibious dredging machine having a bladed rotating float with a spiral blade arranged on the bottom of the grab device body can be used to perform various tasks and garbage collection operations on shores, coasts, wetlands, etc. However, this only enables the machine to move on water or in wetlands, and there are still issues with soil, sludge, etc. getting caught in the floats, reducing propulsion force and slowing down movement speed, as well as the durability of the dredging machine's floats, making it impossible to perform stable dredging operations.

[0005] In recent years, disasters have been increasing, and dredging work is becoming more common when ground subsides or floods occur due to liquefaction caused by heavy rain or earthquakes, or when dredging work is being carried out on soft ground such as in wetlands. In particular, dredging work in cold regions is not only limited to the soft ground mentioned above, but also to the fact that the soft ground freezes due to the drop in temperature, causing frozen soil and sludge to become trapped, resulting in a decrease in the speed at which the dredger can move and a decrease in the durability of the machine itself. Measures to address this issue have not been adequately implemented, and these measures are now necessary.

[0006] Jitszen No. 59-129610

[0007] The amphibious dredger of the present invention can perform dredging operations in a wide range of terrains, such as on snow, in icy seas, in cold regions such as snowy areas, in terrains that have changed due to ground subsidence caused by liquefaction due to heavy rain or earthquakes, and on soft ground such as in muddy areas.The amphibious dredger of the present invention aims to provide an amphibious dredger that can perform stable dredging operations by preventing a decrease in movement speed and durability caused by soil, sludge, etc. getting caught in the floats.

[0008] The invention of claim 1 is an amphibious dredger comprising first, second and third drum-shaped floats mounted on the bottom of the body of the amphibious dredger and each of which can rotate independently around the widthwise axis of the body, and when viewed from the front of the body, blades having spiral structures are provided in the longitudinal direction of each of the first, second and third drum-shaped floats toward the widthwise central axes of the first, second and third drum-shaped floats, and power units for rotating each of the first, second and third drum-shaped floats are provided at both ends of each of the first, second and third drum-shaped floats, The present invention relates to an amphibious dredging machine, characterized in that it comprises: a first connection part that is provided so as to be rotatable around an axis perpendicular to the upper surface of the body, a rotatable hydraulic excavator connected to the first connection part; and a rotatable frame part that is provided on the upper surface of the body with two spats that can move back and forth in the vertical direction, and is connected to a second connection part that is provided at the rear end when viewed from the longitudinal direction of the upper surface of the body, the frame part being connected to the drum-shaped third float, the frame part being rotatable about a central axis in the width direction of the body, and having a screw part connected to the second connection part and the connection part of the frame part.

[0009] The invention of claim 2 relates to an amphibious dredger as described in claim 1, characterized in that the frame portion can rotate up to 20 degrees about the central axis of the width direction of the body.

[0010] The invention of claim 3 relates to an amphibious dredger as described in claim 1, characterized in that the drum-shaped second float has a smaller diameter than the first or third float.

[0011] The invention according to claim 4 relates to an amphibious dredging machine according to claim 1, characterized in that the material of the spiral structure is iron.

[0012] The invention of claim 5 relates to an amphibious dredging machine as described in claim 1, characterized in that the drum-shaped first, second and third floats are configured along the longitudinal axis that passes through the center of each float, and a power unit is configured so that the drum-shaped first, second and third floats and the axis rotate integrally, and the axis is connected to the power unit.

[0013] The invention of claim 6 relates to an amphibious dredger as described in claim 1, characterized in that the blade consisting of the spiral structure has a thickness of 9 mm to 15 mm.

[0014] The invention of claim 7 relates to an amphibious dredger described in any one of claims 1 to 6, characterized in that the spiral structure of the blade is welded to the drum-shaped first, second and third floats, respectively.

[0015] According to the amphibious dredger of claim 1, the amphibious dredger comprises first, second and third drum-shaped floats mounted on the bottom of the body of the amphibious dredger and each of which can rotate independently around an axis in the width direction of the body, and when viewed from the front of the body, blades having a spiral structure are provided in the longitudinal direction of each of the first, second and third drum-shaped floats toward the central axis in the width direction of the first, second and third drum-shaped floats, and power units are provided at both ends of each of the first, second and third drum-shaped floats to rotate each of the first, second and third drum-shaped floats, and the blades are rotatable around an axis perpendicular to the upper plane of the body. a rotatable hydraulic excavator connected to the first connection part, and a rotatable frame part having two spats on the upper surface of the machine body that can move back and forth in the vertical direction and connected to a second connection part provided at the rear end when viewed from the longitudinal direction of the upper surface of the machine body, the frame part being connected to the drum-shaped third float, the frame part being rotatable about the central axis in the width direction of the machine body, and having a screw part connected to the connection part of the second connection part and the frame part, thereby achieving the effect of enabling stable dredging work by preventing a decrease in movement speed and a decrease in durability due to soil, sludge, etc. getting caught in the float.

[0016] According to the amphibious dredging machine of claim 2, the frame portion is characterized in that it can rotate up to 20 degrees around the central axis of the width of the body, so that the propulsion direction can be stably determined even on snow, in icy seas, in snowy and icy areas, in wetlands, muddy areas, etc., and a decrease in movement speed due to a decrease in propulsive force can be prevented, thereby achieving the advantageous effect of enabling dredging work to be carried out efficiently.

[0017] According to the amphibious dredger of claim 3, the drum-shaped second float is characterized by being smaller in diameter than the first or third float.Therefore, when traveling on soft ground, if the main body runs over a stone or the like using only the first and third floats, the second float can provide auxiliary running support, allowing the dredger to travel efficiently on soft ground where stable running is not possible, thereby achieving the effect of preventing a decrease in the amphibious dredger's moving speed.

[0018] According to the amphibious dredger of claim 4, the spiral structure is made of iron, which gives it excellent durability, making the spiral structure of the float less likely to break and allowing it to efficiently scoop out soil and sludge.Therefore, for example, when the amphibious dredger is traveling through muddy areas or on icy seas, the float is not worn down by rocks, ice, etc., which prevents a decrease in its ability to scoop out soil, sludge, etc., and thereby provides the excellent effect of preventing a decrease in movement speed.

[0019] According to the amphibious dredger of claim 5, the drum-shaped first, second and third floats are configured along the longitudinal axis that passes through the center of each float, and the power unit is configured so that the drum-shaped first, second and third floats and the axis rotate integrally, and the axis is connected to the power unit, thereby achieving the excellent effect of efficiently transmitting energy from the power unit to each float unit through the axis.

[0020] According to the amphibious dredger of claim 6, the invention of claim 7 is characterized in that the blade consisting of the spiral structure has a thickness of 9 mm to 15 mm, thereby achieving the excellent effect of being able to perform dredging operations using an amphibious dredger with excellent durability on snow, icy seas, snowy and icy areas, muddy areas, etc.

[0021] According to the amphibious dredger of claim 7, the spiral structure of the blade is characterized by being welded to the drum-shaped first, second and third floats, respectively, thereby achieving the excellent effect of being able to form a blade whose durability is prevented from being reduced by soil, sludge, etc.

[0022] 1 is a left side view of an amphibious dredger according to an embodiment of the present invention; 2 is a top plan view of an amphibious dredger according to an embodiment of the present invention, taken along the line AA in FIG. 1 from above; 3 is a partial view of a top plan view of an amphibious dredger according to an embodiment of the present invention, taken along the line AA in FIG. 1 from above, when the amphibious dredger travels straight; 4 is a partial view of a top plan view of an amphibious dredger according to an embodiment of the present invention, taken along the line AA in FIG. 1 from above, when the amphibious dredger turns left; 1. A partial top plan view showing an amphibious dredger according to an embodiment of the present invention, taken along the line AA in FIG. 1, when the amphibious dredger is turning right. FIG. 2. A front view of an amphibious dredger according to an embodiment of the present invention. FIG. 3. A rear view of an amphibious dredger according to an embodiment of the present invention.

[0023] An amphibious dredger according to an embodiment of the present invention will be illustrated below with reference to the accompanying drawings, but it goes without saying that this is merely one example.

[0024] The terms used herein should not be construed as limiting the scope of the present invention, which is limited only by the appended claims. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art.

[0025] The amphibious dredger is shown to be used on snow, in icy waters, in snowy and icy areas, in wetlands and muddy areas, but is not limited to these, and the amphibious dredger of the present invention can also be used in rivers and estuaries, for example.

[0026] The materials for the helical structure included in the present invention include metals, alloys, and synthetic metals, such as iron, aluminum, aluminum alloys, cupronickel, steel, and stainless steel, with iron being particularly preferred.

[0027] <Amphibious Dredger> Figure 1 is a left side view of an amphibious dredger according to one embodiment of the present invention. Figure 2 is a top plan view of an amphibious dredger according to one embodiment of the present invention, taken along the line AA in Figure 1 from above. Figure 3 is a partial view of the top plan view of an amphibious dredger according to one embodiment of the present invention, taken along the line AA in Figure 1 from above, when the amphibious dredger is propelled forward. Figure 4 is a front view of an amphibious dredger according to one embodiment of the present invention. Figure 5 is a rear view of an amphibious dredger according to one embodiment of the present invention. 1 to 5, an amphibious dredger (1) according to one embodiment of the present invention is provided with first, second, and third drum-shaped floats (4a, 4b, 4c) that are mounted on the bottom of a body (2) of the amphibious dredger (1) and can independently rotate around a widthwise axis (S1) of the body (2). Next, blades (10) each having a spiral structure (5) are provided in the longitudinal direction of each of the drum-shaped first, second, and third floats (4a, 4b, 4c) toward a widthwise central axis (S2) of each of the drum-shaped first, second, and third floats (4a, 4b, 4c) when viewed from the front of the body (2). The excavator (3) is provided with a power unit (8) at each end of each of the drum-shaped first, second, and third floats (4a, 4b, 4c) for rotating them through shafts (7) of the first, second, and third floats, a first connecting unit (9a) for rotation about an axis (V) perpendicular to the upper plane of the machine body, and a rotatable hydraulic excavator (3) connected to the first connecting unit (9a). The excavator (3) is provided with two spat (11) on the upper plane of the machine body (2) that are reciprocable in the vertical direction, and further has a rotatable frame unit (6) connected to a second connecting unit (9b) provided at the rear end as viewed in the longitudinal direction (L1) of the upper plane of the machine body (2). This frame portion (6) is connected to the drum-shaped third float (4c), and the frame portion (6) is rotatable about the central axis (S1) in the width direction of the aircraft body, and includes a screw portion (12) connected to the connection portion of the second connection portion (9b) and the frame portion (6). The material used for the spiral structure (5) is as described above.

[0028] 1 to 3(a-c), an amphibious dredger (1) according to one embodiment of the present invention is provided with first, second, and third drum-shaped floats (4a, 4b, 4c) that are mounted on the bottom of a body (2) of the amphibious dredger (1) and that can independently rotate around a widthwise axis (S1) of the body (2). Next, blades (10) each having a spiral structure (5) are provided in the longitudinal direction of each of the drum-shaped first, second, and third floats (4a, 4b, 4c) toward a widthwise central axis (S2) of each of the drum-shaped first, second, and third floats (4a, 4b, 4c) when viewed from the front of the body (2). A power unit (8) for rotating the drum-shaped first, second, and third floats (4a, 4b, 4c) is provided at each end of each of the first, second, and third floats (4a, 4b, 4c), and a first connection unit (9a) is provided to be rotatable around an axis (V) perpendicular to the upper plane of the machine body (2), and a rotatable hydraulic excavator (3) is connected to the first connection unit (9a).The upper plane of the machine body (2) is provided with two spat (11) that can reciprocate in the up and down direction, and the machine body (2) further has a rotatable frame unit (6) connected to a second connection unit (9b) provided at the rear end when viewed from the longitudinal direction of the upper plane of the machine body (2). The frame section (6) is connected to the drum-shaped third float (4c), and the frame section (6) is rotatable about the central axis (S1) in the width direction of the body, and includes a screw section (12) connected to the second connection section (9b) and the connection section of the frame section (6). Furthermore, the drum-shaped first, second, and third floats (4a, 4b, 4c) each have a shaft section (7) configured along the longitudinal axis (L2) passing through the center of the float, and a power section is configured so that the drum-shaped first, second, and third floats (4a, 4b, 4c) and the shaft section (7) rotate integrally, and the shaft section (7) is connected to the power section (8). The frame section (6) can rotate up to 20° about the central axis (S1) in the width direction of the body (2), and can stably determine the propulsion direction of the amphibious dredger forward, backward, left, and right. This prevents a decrease in movement speed due to a decrease in propulsive force, allowing dredging work to be carried out efficiently.The material used for the helical structure (5) is as described above.

[0029] 1 to 5, an amphibious dredger (1) according to one embodiment of the present invention is provided with first, second, and third drum-shaped floats (4a, 4b, 4c) that are mounted on the bottom of a body (2) of the amphibious dredger (1) and that can independently rotate around a central axis (S1) in the width direction of the body (2). Next, when viewed from the front of the body (2), blades (10) are provided toward the central axis (S2) in the width direction of the drum-shaped first, second, and third floats (4a, 4b, 4c), each of which has a spiral structure (5) that is alternately provided clockwise from the right end and counterclockwise from the left end in the longitudinal direction of the drum-shaped first, second, and third floats (4a, 4b, 4c). Furthermore, a power unit (8) for rotating each of the drum-shaped first, second, and third floats (4a, 4b, 4c) is provided at each end of each of the drum-shaped first, second, and third floats (4a, 4b, 4c), and a first connection unit (9a) is provided to be rotatable around an axis (V) perpendicular to the upper plane of the machine body (2), and a rotatable hydraulic excavator (3) is connected to the first connection unit (9a).The upper plane of the machine body (4) is provided with two spat (11) that can reciprocate in the vertical direction, and further has a rotatable frame unit (6) connected to a second connection unit (9b) provided at the rear end when viewed from the longitudinal direction of the upper plane of the machine body (2). The frame portion (6) is connected to the drum-shaped third float (4c), and the frame portion (6) is rotatable about a central axis (S1) in the width direction of the fuselage (2), and includes a screw portion (12) connected to the second connection portion (9b) and the connection portion of the frame portion (6). Furthermore, the drum-shaped first, second, and third floats (4a, 4b, 4c) each have a shaft portion (7) configured along the longitudinal axis (L2) that penetrates the center of the float, and a power unit (8) is configured so that the drum-shaped first, second, and third floats (4a, 4b, 4c) and the shaft portion (7) rotate integrally. The shaft portion (7) is connected to the power unit (8). In addition, the frame portion (6) can rotate up to 20° around the widthwise central axis (S1) of the machine body (2), allowing for stable determination of the propulsion direction and preventing a decrease in movement speed due to a decrease in propulsive force, thereby enabling dredging work to be carried out efficiently.The material used for the helical structure (5) is as described above.

[0030] 1 to 5, the blade (10) made of the spiral structure (5) has a thickness of 9 mm to 15 mm, and the thickness is preferably within this range. This thickness provides excellent propulsion and durability.

[0031] Although not shown, the power unit (8) uses a hydraulic motor, but the power unit (8) is not limited to this embodiment, and various modifications, alterations, and changes can be made within the scope obvious to those skilled in the art.

[0032] The amphibious dredger of the present invention will be described in more detail below based on examples. However, the present invention is not limited to the following examples. An amphibious dredger was manufactured based on the embodiment of the present invention.

[0033] Although not shown, referring to an embodiment of the present invention, the traveling speed of the amphibious dredger is approximately 3 (km / h) on land and approximately 3 (km / h) on water. The traveling speed on soft ground such as a muddy area is also approximately 3 (km / h). As described above, the amphibious dredger can be operated at a stable speed on various types of terrain, and because the amphibious dredger of the present invention has excellent propulsive power, dredging operations can be performed without a decrease in the traveling speed of the amphibious dredger.

[0034] 1 to 5, the amphibious dredger is provided with spat to fix the body of the machine during dredging work and to perform dredging work stably. The present embodiment is not limited to this embodiment, and various modifications, alterations, and variations are possible within the scope of what is obvious to those skilled in the art.

[0035] 1 to 5 and the embodiment of the present invention, the blade having a spiral structure has a thickness of 9 mm to 15 mm, which allows the amphibious dredger to perform dredging work on snow, ice, snowy areas, wetlands, muddy areas, etc., with high durability.

[0036] Here, the hydraulic excavator used for dredging work is "Product name SK75SR Bucket capacity: 0.28m ３The hydraulic excavator is not limited to the one described in this embodiment, and various modifications, alterations, and changes can be made within the scope obvious to those skilled in the art.

[0037] The amphibious dredging machine of the present invention is capable of performing dredging operations in a wide range of terrains, including cold regions such as snow, icy seas, and snowy areas, wetlands, and terrain that has changed due to subsidence caused by liquefaction due to heavy rain or earthquakes, as well as soft ground.Furthermore, the amphibious dredging machine of the present invention combines excellent movement speed with high durability, making it possible to provide an amphibious dredging machine that enables stable dredging operations.

[0038] DESCRIPTION OF SYMBOLS 1 Amphibious dredger 2 Machine body 3 Hydraulic excavator 4a Drum-shaped first float 4b Drum-shaped second float 4c Drum-shaped third float 5 Spiral structure 6 Frame section 7 Shaft section 8 Power section 9a First connecting section 9b Second connecting section 10 Blade 11 Spat 12 Screw section AA AA cross section L1 Longitudinal axis (machine body) L2 Longitudinal axis (float) S1 Widthwise central axis of machine body S2 Widthwise central axis of drum-shaped first, second and third floats V Vertical axis

Claims

1. An amphibious dredger comprising: first, second and third drum-shaped floats mounted on the bottom of the amphibious dredger's body and each of which can rotate independently around a widthwise axis of the body; when viewed from the front of the body, blades having spiral structures are mounted in the longitudinal direction of each of the first, second and third drum-shaped floats toward the widthwise central axis of each of the first, second and third drum-shaped floats; power units for rotating each of the first, second and third drum-shaped floats are mounted at both ends of each of the first, second and third drum-shaped floats; a first connecting part is mounted so as to be rotatable around a vertical axis relative to the upper flat surface of the body; a rotatable hydraulic excavator connected to the first connecting part; and two spattle rods mounted on the upper flat surface of the body that can reciprocate up and down; An amphibious dredger, characterized in that it comprises a rotatable frame portion connected to a second connection portion provided at the rear end when viewed from the longitudinal direction of the upper plane of the body, the frame portion being connected to the drum-shaped third float, the frame portion being rotatable about a central axis in the width direction of the body, and a screw portion connected to the second connection portion and the connection portion of the frame portion.

2. The amphibious dredger according to claim 1, wherein the frame section can rotate up to 20° about the central axis in the width direction of the body.

3. An amphibious dredger as described in claim 1, characterized in that the diameter of the drum-shaped second float is smaller than that of the first or third float.

4. The amphibious dredger according to claim 1, characterized in that the material of the spiral structure is iron.

5. An amphibious dredging machine as described in claim 1, characterized in that the first, second and third drum-shaped floats are configured along the longitudinal axis that passes through the center of each float, and a power unit is configured so that the first, second and third drum-shaped floats and the axis rotate integrally, and the axis is connected to the power unit.

6. The amphibious dredger according to claim 1, wherein the blade having a spiral structure has a thickness of 9 mm to 15 mm.

7. An amphibious dredger as claimed in any one of claims 1 to 6, characterized in that the spiral structure of the blade is welded to the first, second and third drum-shaped floats, respectively.

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