KR101324695B1 - Dredger - Google Patents

Abstract

PURPOSE: A dredging vessel is provided to minimize a space which is required for turning the dredging vessel, since a rotatable spud minimizes the protrusion part of the spud on the outside of a hull when the dredging vessel moves. CONSTITUTION: A dredging vessel comprises an elevating rod (23), a slider (28), an elevating cylinder, a guide (21), and an acquiring unit (30). The acquiring unit is installed on the guide and the slider respectively. The acquiring unit has an acquiring cylinder which is a fluid pressure cylinder installed in between a pair of parallel compression plates (31). The compression plates are separated from each other and get close to each other. The elevating rod between the compression plates is acquired when the compression plates get close to each other. The acquiring cylinder is movable in the axial direction due to a movement support which is connected to the center of the acquiring cylinder. The acquiring cylinders are connected through the movement support to the guide and the slider respectively.

Description

Dredger {DREDGER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dredger dredging a seabed, a bed, an appeal bottom, and the like. The capture device 30 is connected to the guide 21 supporting the lifting bar 23 of the lifting rod 23 and the lifting bar 23 of the lifting cylinder 25 mounted on the guide 21 to drive the lifting rod 23. By installing the above, it is possible to elevate the elevating bar 23 above the stroke of the elevating cylinder (25).

Dredgers equipped with the Spurd 20 can firmly fix the dredger's hull 10 to the bottom of the dredging water, compared to mooring dredgers, so that stable work can be performed even in a fast-flowing or fast-flowing water, even when moving on land. By utilizing the spud 20, the hull 10 can be lifted by a magnetic force and mounted on a vehicle, or a plurality of spuds 20 may be combined to perform short distance walking.

As shown in FIG. 1, the spud 20 mounted on the dredger is a lifting rod inserted into the guide 21 and the guide 21 of a tubular pipe connected to the dredger hull 10 to allow free movement in the axial direction. (23) and the lifting cylinder (25) which is connected to the guide 21 and the lifting bar (23) at both ends as a fluid pressure cylinder, respectively, as the lifting cylinder (25) is stretched, the lifting bar (23) It is common to have a structure that

1 and 2, the guide 21 and the hull 10 are connected to each other through the bracket 22 hinged to the hull 10, and both ends of the hull 10 and the bracket 22 are connected to the hull 10 and the bracket 22, respectively. By installing the connected rotary cylinder 26 so that the spud 20 can be rotated, the dredger may be folded in a horizontal state when the dredger is moved. As a prior art, patent number 729864 is mentioned.

In a dredger equipped with a conventional spud 20 including Patent No. 729864, the lifting range of the lifting bar 23 is the stroke of the lifting cylinder 25 in the lifting driving of the lifting bar 23 of the spud 20. There is a problem that is limited within the stroke.

That is, as shown in Figure 2, when the lifting cylinder 25 is connected to the guide 21 and the other end is connected to the lifting rod 23, the lifting rod 23 is raised to the highest point, the lifting cylinder When the bar 25 is fully contracted, the lifting bar 23 is lowered to the lowest point, and the lifting bar 23 cannot move in a range beyond the stroke of the lifting cylinder 25.

Accordingly, as shown in FIG. 2, the movable bar 23 can be secured by applying a multi-stage hydraulic cylinder as the lifting cylinder 25. However, even when the multi-stage hydraulic cylinder is applied, the stroke may be limited. In addition, when the hydraulic cylinder is configured in multiple stages, the likelihood of a problem such as a working fluid leak is relatively increased, which is disadvantageous for stable operation of the dredger.

Particularly, in the case of a dredger to which the folding folding spud 20 is applied, as shown in the lower end of FIG. 2, even when the spud 20 is folded horizontally with the hull 10, the elevating rod 23 outside the hull 10 is provided. Since the bottom is inevitably protruded, the hull 10 can not be turned in a narrow space, and there is a serious problem that it is difficult to mount the vehicle even when moving on land.

The present invention was devised in view of the above-described problems, and the lifting type spud 20 is mounted at the end of the hull 10 on which the dredging equipment 15 is mounted, and the lifting bar 23 of the spud 20 is provided. When descending, the hull 10 is fixed to the bottom of the dredging water, the spud 20 is inserted into the tubular guide 21 and the guide 21 connected to the hull 10 to allow free movement in the axial direction. The lifting bar 23 is formed, and the lifting cylinder (25) connected to the guide 21 and the lifting bar 23, both ends as a fluid pressure cylinder, respectively, as the lifting cylinder 25 is stretched the lifting bar (23) In the dredger that elevate), the lifting bar 23 is coupled with a slider 28 that can be freely moved in the axial direction of the lifting bar 23, and both ends of the lifting cylinder 25 are guide 21 and respectively. Is connected to the slider 28, the guide 21 and the slider 28 is provided with a capture device 30, respectively, the capture device 30 is parallel to each other As the capture cylinder 32 which is a fluid pressure cylinder is installed between the pair of compression plates 31 and the capture cylinder 32 is stretched, the pair of compression plates 31 are spaced apart from each other and close to each other. As it moves closer, the lifting rods 23 between the pressing plates 31 are captured, and an active support 33 is coupled to the center of the capture cylinder 32 so that the capture cylinder 32 can act in the axial direction, and the capture cylinder ( 32 are dredgers characterized in that they are connected to the guide 21 and the slider 28 through the active support 33, respectively.

In addition, the active support 33 is formed with a projection 34, the projection 34 is provided with a guide rod 35 parallel to the capture cylinder 32, the pressing plate 31, the coupling hole 37 ) Is formed so that both ends of the induction bar 35 is coupled to the coupler 37, and both ends of the induction bar 35 are formed with a blocking plate 36, and as the capture cylinder 32 extends, the compression plate ( It is a dredger characterized in that the pressing plate 31 reached to the cut-off panel 36 is stopped at 31 is spaced apart from each other.

Through the present invention, not only can drastically improve the available depth of the dredger's spud 20, but also in the case of the rotating spud 20, minimizes the protrusion of the outer hull 10 of the spud 20 when the dredger is moved. It is possible to minimize the space required for turning the dredger, as well as to ensure convenience when moving on land.

1 is a perspective view of a conventional spud mounted dredger
Figure 2 is an exemplary view of the operation state of the spud mounted dredger conventional
3 is a perspective view of the present invention
Figure 4 is a perspective view of the capture device of the present invention
5 is a plan view and a side view of the capture device of the present invention
Figure 6 is an excerpt side view of the present invention
7 is an explanatory view of a spud operation method of the present invention
8 is an exemplary view of an operating state of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

First, Figure 3 is a perspective view showing the appearance of the present invention, as shown in the present invention is a dredger equipped with a spud (20), the lifting type on the end of the hull 10 is mounted dredging equipment (15) The spud 20 is mounted so that the hull 10 is fixed to the bottom of the dredging water when the lifting rod 23 descends, and the spud 20 is tubular connected to the hull 10. Lifting rod 23 is inserted into the guide 21 and the guide 21 of the guide to allow the free movement in the axial direction, and the lifting cylinder which is connected to the guide 21 and the lifting rod 23 at both ends as a fluid pressure cylinder, respectively. It consists of (25), and has the structure which the lifting bar 23 raises and lowers as the lifting cylinder 25 expands and contracts.

In the illustrated embodiment, a single bucket type excavator is applied as the dredging equipment 15 mounted on the hull 10, but various types of dredging equipment such as a clam-shell type excavator or a suction dredging device are provided. (15) may apply.

In addition, the illustrated embodiment connects the guide 21 and the hull 10 through the bracket 22 hinged to the hull 10, and both ends of the rotation cylinder 26 connected to the hull 10 and the bracket 22, respectively. By installing it so that the spud 20 can be rotated, it is configured to be able to fold the spud 20 in a horizontal state when the hull 10 moves.

In the present invention, as a characteristic configuration, as in the enlarged part of the circle of FIG. 3, a slider 28 coupled to the elevating rod 23, a guide 21, and a capture device 30 respectively provided on the slider 28 are configured. do.

First, the slider 28 is a kind of tubular body through which the same opening as the elevating rod 23 penetrates, and one end of the elevating cylinder 25 is hinged, as in the enlarged part of the circle of FIG. The lifting bar 23 is restrained of lateral movement by the slider 28, but free sliding in the axial direction is ensured.

The capturing device 30 provided on the guide 21 and the slider 28, respectively, is a device for capturing the lifting bar 23, and a pair of pressing plates 31 are formed, and both sides of the lifting bar 23 are provided. Each pressing plate 31 is installed in the pair of the pressing plate 31 is in close proximity to each other in close contact with the lifting bar 23, the lifting bar 23 is fixed, on the contrary a pair of pressing plate 31 is mutually When spaced apart has a structure in which the fixed state of the lifting bar 23 is released.

That is, as shown in FIGS. 3 to 5, the capture device 30 is installed in the guide 21 and the slider 28, respectively, and the capture device 30 has a fluid between a pair of pressing plates 31 parallel to each other. As the capture cylinder 32, which is a compression cylinder, is installed and the capture cylinder 32 is expanded and contracted, a pair of compression plates 31 are spaced apart from each other and close to each other, and as the compression plate 31 approaches, between the compression plates 31. The lifting bar 23 is captured.

As shown in FIGS. 4 and 5, between the pair of pressing plates 31 constituting the capturing device 30, a capturing cylinder 32 which is expanded and contracted according to the application of fluid pressure is provided. The pressing plate 31 is bonded to each other at a right angle, and the capture cylinder 32 is coupled to the active support 33 so that both of the compression plates 31 are centered around the active support 33 as the capture cylinder 32 is stretched. Spacing and proximity.

Here, the active support 33 is a sliding mounting table in which a coupling hole having an inner diameter equal to the diameter of the capture cylinder 32 is drilled in a direction perpendicular to the pressing plate 31 as shown in FIG. 5. As in, the lower end is joined to the guide 21 or the slider 28, and serves to secure the capture device 30 to the guide 21 and the slider 28, and at the same time, the axis of the capture cylinder 32 Induces direction movement.

By allowing the capture cylinder 32 itself to move in the axial direction during expansion and contraction of the capture cylinder 32 through the active support 33, as shown in the upper part of FIG. 5, the uniform movement of both compression plates 31. As well as ensuring the compression plate 31, the compressive force of the same strength can be applied even when the pressing plate (23) pressing both sides of the lifting bar 23 and unnecessary deformation of the lifting bar (23) and the pressing plate (31) Suppression and stable operation of the capture device 30 are possible.

In addition, as shown in FIG. 4, the upper and lower ends of the pressing plate 31 may be joined to the reinforcing ribs 39 to suppress deformation of the pressing plate 31, which may occur when the capture cylinder 32 contracts. .

On the other hand, in the capture device 30 of the present invention by coupling the guide bar 35 having the blocking plate 36 formed at both ends to the pressing plate 31, the direction of movement during the separation movement of the pressing plate 31 is biased to both sides compression One side of the plate 31, the pressing plate 31 is to prevent the phenomenon that the lifting bar 23 in contact with the surface.

As shown in FIGS. 4 and 5, a protrusion 34 is formed on the rear side of the active support 33, that is, on the side opposite to the lifting bar 23, and parallel to the capture cylinder 32 on the protrusion 34. One guide rod 35 is installed, and the pressing plate 31 forms a coupler 37 so that both ends of the guide rod 35 are coupled to the coupler 37 and both ends of the guide rod 35. The blocking plate 36 is formed so that the pressing plate 31 reaching the blocking plate 36 can be stopped while the pressing plate 31 is spaced from each other as the capture cylinder 32 extends.

In the capturing device 30 of the present invention having the structure as shown in FIG. 5, when the fluid pressure is applied to the capturing cylinder 32 under ideal conditions, the capturing cylinder 32 is extended and the capturing cylinder coupled to the active support 33. While the 32 is sliding, both pressing plates 31 are spaced at a uniform speed about the active support 33, but in actual operation, the activity of the capture cylinder 32 in the active support 33 is It may not be smooth or a phenomenon such as one side of the pressing plate 31 is adhered to the lifting bar 23 in the process, the movement of the pressing plate 31 may be biased.

That is, one side of the pressing plate 31 may maintain the state in contact with the lifting bar 23 and only the other side of the pressing plate 31 may occur, which may prevent the smooth lifting of the lifting bar 23 afterwards. In addition, since it may cause a result of damaging the surface of the elevating rod 23, in the present invention, as shown in Figure 5, by configuring the guide rod 35 is formed on both ends of the blocking plate 36, even if one side pressing plate Even if only 31 is spaced apart, after the pressing plate 31 is stopped by the blocking plate 36, the other pressing plate 31 may be spaced apart. As a result, both pressing plates 31 may be separated from each other in the final space. ) Is to achieve a precise symmetry around the lifting bar 23 on the plane and to be completely released.

In addition, the guide rod (35) fixed to the active support (33) through the protrusion (34) suppresses the phenomenon in which the capture cylinder 32 of the circular cross section is coupled to the active support (33) is pressed plate It is also possible to play a role of stably maintaining the attitude of (31).

As such, in the present invention, in driving the elevating rod 23 of the dredger spud 20, one end of the elevating cylinder 25 is not directly connected to the elevating rod 23, but is connected through the slider 28. , Respectively, by attaching the capturing device 30 to the guide 21 and the slider 28 to which the lifting bar 23 is coupled, and operating the pair of the capturing device 30 and the lifting cylinder 25 in combination. The elevating drive of the elevating bar 23 exceeding the stroke of 25 is possible, and the principle thereof will be described in detail with reference to FIG. 7.

As shown in FIG. 7, as in the left end of the drawing, the lifting cylinder 25 is extended, and the pressing plate 21 side pressing plate 31 and the slider 28 side pressing plate 31 are placed on the lifting bar 23. In the state in which all of the close contact with the slider 28, the lifting cylinder 25 is contracted after the slider 28 side pressing plate 31 is spaced apart, the slider 28 is lowered, and then the slider 28 side pressing plate 31 is in close contact When the lifting cylinder 25 is extended in the state in which the guide 21 side pressing plate 31 is spaced apart, the lifting bar 23 is raised.

Subsequently, if the above-described process is repeated, the lifting bar 23 may be lifted and lifted without limit of the lifting cylinder 25 stroke.

In addition to the advantage that the lifting bar 23 can be lifted indefinitely, as shown in the lower end of Figure 8, the lifting rod 23 can be folded in a state in which the lifting rod 23 is fully raised, so that the dredger It is possible to dramatically shorten the length of the ship when moving.

10: Hull
15: Dredging Equipment
20: Spurd
21: guide
22: Bracket
23: lifting rod
25: lifting cylinder
26: rotating cylinder
28: Slider
30: capture device
31: pressing plate
32: capture cylinder
33: Activity Support
34: protrusion
35: induction rod
36: blocking panel
37: coupling sphere
39: reinforcement rib

Claims (2)

The lifting type spud 20 is mounted at the end of the hull 10 on which the dredging equipment 15 is mounted, and the hull 10 is fixed to the bottom of the dredging water when the lifting bar 23 of the spud 20 is lowered. The spud 20 has a tubular guide 21 connected to the hull 10 and a lifting bar 23 inserted into the guide 21 so as to allow free movement in the axial direction, and both ends as fluid pressure cylinders. In the dredger which consists of the elevating cylinder 25 connected to the guide 21 and the elevating rod 23, respectively, as the elevating cylinder 25 is stretched,
A slider 28 which is freely movable in the axial direction of the lifting bar 23 is coupled to the lifting bar 23, and both ends of the lifting cylinder 25 are connected to the guide 21 and the slider 28, respectively;
The capture device 30 is installed in the guide 21 and the slider 28, respectively;
The capture device 30 has a capture cylinder 32, which is a fluid pressure cylinder, is installed between a pair of compression plates 31 parallel to each other, so that the pair of compression plates 31 are spaced apart from each other. Close, and the lifting bar 23 between the pressing plates 31 is captured as the pressing plates 31 come close;
An active support 33 is coupled to the center of the capture cylinder 32 so that the capture cylinder 32 can be actuated in the axial direction, and the capture cylinders 32 are guides 21 and sliders 28 through the active support 33, respectively. Dredger characterized by
The method according to claim 1, wherein the active support 33 is formed with a projection 34, the projection 34 is provided with a guide rod 35 parallel to the capture cylinder 32;
The pressing plate 31 is formed with a coupler 37 so that both ends of the guide rod 35 are coupled to the coupler 37;
Blocking plates 36 are formed at both ends of the induction bar 35, and the pressing plates 31 reaching the blocking plate 36 are separated from each other by the pressing plates 31 being spaced apart as the capture cylinders 32 extend. Dredger characterized by stationary.

Images