JPS6285798A - Flat ship transport device - Google Patents

Abstract

PURPOSE:To prevent a transport device from being excessively large by providing a plurality of struts supported vertically movably on a flat ship and supporting on the lower ends rotatable wheels detachably about the lateral axes respectively and also providing a means for urging the struts to the bottom side of the water. CONSTITUTION:Transport devices 11 for holding a flat ship 2 at a predetermined position on the water and transporting it on the water are respectively provided on the front and rear portions at both broad sides of the flat ship 2. When the flat ship 2 is transported in the desired direction, the turning hydraulic motor 34 of a turning device 23 is first driven to rotate the outer ring 31a of a turning bearing so that a wheel 16 at the lower end of a strut 15 is directed in the desired advancing direction. Next, a lifting/lowering hydraulic motor 38 is driven to move the strut 15 downward and urge the wheel 16 toward the water bottom. And a travelling hydraulic motor 18 is driven to rotate the wheel 16 so that the flat ship 2 is moved in the desired direction. Thus, since loads from the flat ship can be shared by the respective struts and wheels, the strength of these struts and wheels can be lessened and a drive force of a single wheel can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a moving device that enables a barge used for maritime construction etc. to be moved in a desired direction.

(Prior Art) Some moving devices for moving barges on water are constructed as follows.

That is, a plurality of struts are provided on the barge so as to rotate back and forth alternately. The lower ends of some of these struts support the barge and rotate so as to push the water bottom backward in the direction of travel, and at this time, the other struts are raised and their lower ends touch the water bottom. Rotate the upper part forward. Then, the above-mentioned two branches operate to walk by repeating this action alternately, and the barge is moved forward by the reaction force when pushing against the bottom of the water (for example, -44960).

(Problems to be Solved by the Invention) By the way, when moving a barge, the above conventional configuration causes the following inconvenience.

In other words, each prop operates as if walking, and when some props push the water bottom, the other props move away from the water bottom and are located above it, so the barge moves one of the multiple props against the water bottom. Therefore, each support is required to have great strength. For this reason, as this support becomes large, the barge that supports it becomes correspondingly large, which increases the resistance to movement of the barge, and accordingly the support is required to have a corresponding increase in strength.
There is an inconvenience that the barge moving device becomes excessive synergistically. Furthermore, since the props act as if they are walking, there is a risk that the barge will oscillate.

(Objective of the Invention) This invention was made with attention to the above-mentioned circumstances, and it is intended to prevent the barge moving device from becoming excessively large and to prevent rocking from occurring when the barge is moved. The purpose is to enable smooth movement.

(Structure of the Invention) - The feature of this invention for achieving the object is to provide a plurality of columns that are supported by a barge in a vertically movable manner and extend toward the bottom of the water. Each support wheel is rotatable about a horizontal axis, and a biasing means is provided for biasing the support to move the support toward the bottom of the water.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

In Figures 2 and 3, 1 is a continuous dredger and 2 is its barge. An engine room 3 is provided on one side of the barge 2 in its traveling direction (hereinafter, this is simply referred to as the front (arrow Fr in the figure), and the opposite direction is referred to as the rear), and an operator's cabin 4 is provided at the rear. A packet elevator 5 is provided approximately at the center of the barge 2 for dredging earth and sand e from the bottom of the water. A discharge conveyor 7 is provided at the rear of the barge 2 to receive and take away the earth and sand e discharged from the packet elevator 5.

The barge 2 is provided with a pedestal 8.8 that rotatably supports the upper end of the packet elevator 5, so that the lower end of the packet elevator 5 can freely rotate in the front-rear direction. In addition, winches 9 are installed on both sides of the barge 2L.
A winch 9 is provided, and wires 10 and 10 connected to the front and rear of the lower part of the elevator 5 are wound around each drum of the winch 9. Then, both the winches 9 are driven, and the wire 10.
When the winding and unwinding operations of 10 are performed, the packet elevator 5 can be rotated to a desired rotational posture (as shown by the dotted chain line in Figure 3).By moving the packet elevator 5, dredging can be carried out at a desired position on the water bottom. will be done.

Further, the front and rear portions of both sides of the barge 2 are provided with movable parts for holding the barge 2 at a predetermined position on the water and moving it on the water. cM 11 are provided respectively, and these mobile JA
The storage units 11 have the same configuration.

In FIGS. 1, 4, and 5, the moving device 11 shown in - will be explained.

The moving device 11 is movably supported by a barge 2 via a support 13 and has a support 1 extending toward the bottom of the water.
5.

Wheels 16 that are rotatable about horizontal axes are supported at the lower ends of the pillars 15, respectively.

A reversible and i+
A 7-speed traveling hydraulic motor 18.18 is connected to this wheel 16.
installed on the same axis as the Further, hydraulic means 1 is a biasing means for biasing the support column 15 toward the bottom of the water.
4 is provided.

The wheel 16 has a plurality of protrusions 19 on its outer peripheral surface that protrude radially outward. The tip of this protrusion 19 preferably has a pointed shape as shown in the figure when the bottom sediment e is rough and lumpy particles. Moreover, when the underwater sediment e is sand-like particles, the tips of the protrusions 19 preferably have a flat rectangular shape (not shown). In this way, depending on the properties of the bottom sediment e, the wheel 1
By changing 6, the protrusion 19 of the wheel 16 can easily dig into the bottom sediment e. For this reason, when the wheel 16 rotates, the resistance due to the bottom sediment e increases, and the force for moving the barge 2 on the water can also be increased.

The support platform 13 includes a lifting platform 20 that is movable up and down along the side of the barge 2, and a rotating platform 21 that is supported within the lifting platform 20 and is rotatable around the vertical axis of the platform 20. A second column 15 is supported on this rotating table 21 so as to be vertically slidable.

Moreover, between the lifting platform 20 and the barge 2, this lifting platform 2
A lifting device 22 for raising and lowering the elevator is provided, and a turning device 23 for rotating the turning table 21 with respect to the lifting table 20 is interposed between the lifting table 20 and the turning table 21.

The elevating device 22 will be explained. A pair of lifting guides 25.25 extending in the vertical direction are provided on the side of the barge 2, and a sliding plate 26.2 is attached to the lifting platform 20.
6 is supported by the lifting guide 25° 25 so as to be vertically slidable. The sliding plate 26 allows the lifting platform 20 to move up and down.

Further, a hydraulic cylinder 27 is provided on the barge 2 to protrude upward and is vertically extendable and retractable. A pulley 28 is supported on the upper end of the piston rod of this hydraulic cylinder 27. On the other hand, the barge 2 and the lifting platform 20 are connected by a wire lobe 29, and a midway portion of the wire lobe 29 is wrapped around the pulley 28. Then, when the hydraulic cylinder 27 is extended, the pulley 28 is moved upward (arrow U in FIG. 1), so that the wire lobe 2
9, the +f1 landing platform 20 is pulled up (as shown by the two-dot chain line in the figure). The lifting platform 20 is moved to the desired position below L by means of a locking means (not shown) on the barge 2 side! J! It is said that it can be determined.

Next, to explain the swivel head mount 23, the swivel base 2
The upper part of 1 is a swing bearing 31, and the lower part is a swing bush 3.
2 and is supported within the lifting platform 20. in this case,
The above-mentioned swivel bearing 31 has an outer ring 31a and an inner ring 3.
1b, the outer ring 31a is attached to the swivel table 21, and the inner ring 31b is attached to the A-descending table 20, respectively. A ring gear 33 is formed on the outer peripheral surface of the outer ring 31a, and a swing hydraulic motor 34 is provided on the lifting platform 20, and a swing pinion 35 attached to the output shaft of the hydraulic motor 34 and the ring gear 33 are connected to each other. are interlocked.

The swing base 21 is rotated by the drive of the swing hydraulic motor 34 via the ring gear 33 and the swing pinion 35.

To explain the hydraulic means 14, a rack 37 is formed on one side of the support column 15, and on the other hand, a rack 37 is formed on one side of the support column 15.
A lifting hydraulic motor 38 is provided on the upper surface of the hydraulic motor 38, and a pinion 39 attached to the output shaft of the hydraulic motor 38 is engaged with the rack 37. Also. Above pillar 1
The side opposite to the rack 37 of 5 has a bushing of 40.40
It is vertically slidably abutted against the rotating table 21 via the swivel table 21.

The pinion 39 is rotated by the driving of the lifting hydraulic motor 38, and the column 15 is moved up and down by the up and down movement of the rank 37 that meshes with the pinion 39. Moreover, this lifting hydraulic motor 38 moves the column 15 downward by its drive,
The wheels 16 are pressed against the bottom of the water by a constant urging force driven by the lifting hydraulic motor 38. This biasing force causes the wheels 16 to follow the depth of the water bottom and the undulations of the water bottom.

Furthermore, since the four supports 15 are always urged toward the bottom of the water, each wheel 16 is always on the bottom. For this reason, the force for supporting the barge 2 and moving it is shared between each support 15 and the wheels 16, so the strength of the support 15 is relatively small, and the power of the traveling hydraulic motor 18 is relatively low. Even if the load is small, the barge 2 can be moved against the external force generated when the packet elevator 5 scoops up the bottom sediment e.

On the other hand, when the barge 2 is towed by a tugboat or the like, the hydraulic means 14 is used to pull up the columns 15 and wheels 16, and the elevating device 22 is used to pull the columns 15 and wheels 16 together with the support platform. 13 is pulled up as one and fixed to the barge 2 side (as shown by the dotted chain line in FIGS. 1 and 5). This prevents the wheels 16 from protruding below the bottom of the barge 2. For this reason, during towing of the barge 2, the shallow water bottom surface and the wheel 6 come into contact, causing this rji
Damage to the ring 16 is prevented.

Also, when moving one ship in a desired direction, first,
The outer ring 31 of the swing bearing 31 is moved so that the swing hydraulic motor 34 is driven so that the wheel 16 faces in the desired direction of travel.
Rotate a. Next, +ji step-down hydraulic motor 38
The wheel 16 is urged toward the bottom of the water. and,
The traveling hydraulic motor 18 is driven to rotate the wheels 16. Then, this barge 2 is moved in the desired direction.

In the above case, a moving direction selection means 42 for automatically selecting the moving direction of the barge 2 is provided. This moving direction selection means 42 is arranged on the upper surface of the lifting platform 20 at equal pitches on the same circumference (
8 proximity switches 43 arranged at a pitch of 45 degrees, and a swivel base 2 corresponding to the 43rd position 8 of the proximity switches 43.
It has one detected object 44 disposed on one side.

When selecting the moving direction of the barge 2, first, a desired one of the proximity switches 43 shown in - is energized, and then the swing device 23 is driven. Then, the object to be detected 44 is also turned together with the turning table 21, and when it reaches above the proximity switch 43 that is energized by Kitami, the proximity switch 4
3 detects this and outputs a stop signal to the swing hydraulic motor 34. As a result, the turning hydraulic motor 34 is stopped, and the turning of the turning table 21 is stopped. This automatically ends the selection of the moving direction of the barge 2.

By the above procedure, the swivel base 21 in the four swivel devices 23
The sixth example shows the movement direction of the barge 2 when the
From the figure to FIG. 9, the arrow in the figure indicates the direction of travel.

That is, in FIG. 6, the vehicle moves backward, and in FIG. 7, it moves to the left. Also, in Fig. f1m8, it moves to the right rear, and in Fig. 9, it moves to the left rear.

In addition, when operating the swivel bases 21 of each of the swivel devices 23 at the same time, the proximity switches 43 corresponding to each direction are connected to each other in the swivel devices 23, and these are wired to one operation console. The swivel base 21 in the base swivel device 23 can be simultaneously swiveled in a desired direction. In this case, if it is necessary to select the moving direction of the barge 2 in smaller increments, the arrangement pitch of the proximity switches 43 may be further reduced.

Furthermore, the proximity switch 43 may be a rimming switch, and in this case also the same effects as in the above embodiment can be obtained.

(Effects of the Invention) According to the present invention, a plurality of columns are provided which are supported by one barge so as to be movable up and down and extend toward the bottom of the water, and each of the columns has a structure at the lower end thereof which is rotatable about a horizontal axis. Since a bias stage is provided that supports the wheels and urges the support column to move toward the bottom of the water, all the wheels can be pressed 17 to the bottom of the water at all times. Therefore, compared to the conventional method in which multiple columns are operated to walk and the barge is supported by some of the plurality of columns, the load from the barge is transferred to each column or column. This can be shared by the wheels, thus reducing their strength. Moreover, since all wheels act on the movement of the barge, the driving force required for one wheel can be reduced. Therefore, it is possible to prevent the number of moving devices for one ship from becoming too large.

Moreover, in the case of item 1-, since the strut is biased toward the water bottom, the wheels can be pressed against the water bottom while maintaining a certain pressure. Therefore, the barge can be moved reliably.

Furthermore, since the prop is always urged toward the bottom of the water by hydraulic means, even if there are irregularities on the bottom of the water, the wheels will move up and down to follow them.

For this reason, the barge is always moved evenly without being affected by the shape of the underwater ground. Therefore, it is possible to prevent the barge from rocking during movement, ensuring smooth movement. .

[Brief explanation of drawings]

The figures show an embodiment of the present invention; FIG. 1 is a partially enlarged sectional view of FIG. 3, FIG. 2 is an overall plan view of the dredger, FIG. 3 is an overall side view of the dredger, and FIG. Partially enlarged plan view of the figure.
Figure 5 is a side view taken along the line V-V in Figure 4, and Figures 6 to 9.
The figure is a diagram showing the relationship between the moving direction of this dredger and the orientation of the swivel base. 2. Battle barge, 11.. Movement device, 13. Fist/support stand, 14.
・Hydraulic means (biasing means), 15th column, 16. Wheels, 1811. Hydraulic motor (drive device). Figure 6 Fr ”81 Figure 7

Claims (1)

[Claims] 1. A plurality of columns are provided that are supported by the barge in a vertically movable manner and extend toward the bottom of the water, and each of the columns supports a wheel rotatable about a horizontal axis at the lower end of the column.
A barge moving device, further comprising a biasing means for biasing the support column to move toward the bottom of the water.