JPH092375A - Connecting device for pushboat and barge - Google Patents

Abstract

PURPOSE: To realize the artificially controlled draft adjustment by movably providing a wedge on a supporting body which is movable in the vertical direction on the outer side of another wedge to be slidably provided on a pressing body of a connection device. CONSTITUTION: The bow of a push boat is inserted into a recessed part of a barge, and after a fender is brought into contact with the farthest end of the recessed part, a hydraulic cylinder is operated to push a connection shaft outboard. A pressing body 23 is advanced into a groove 5, and forward and rear diagonal surfaces 26, 27 are respectively brought into forward and rear surfaces 6, 7 of the groove 5. The hydraulic cylinder is operated, and a first wedge 32 is pushed outside, and a tip part 32a selects a recess at the same height among recesses 9-9'' and is fitted thereto. When the draft of the barge is changed, the hydraulic cylinder is operated to elevate a supporting body 50 to the highest position, and then, the hydraulic cylinder is operated to push out a second wedge 53, and a tip part 53a is fitted to a recess at the same height among te recesses 9-9''.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device between a pushing ship and a barge that can form a pushing fleet with excellent seaworthiness. Even if the watering of the barge changes due to loading and unloading while moored, This is an improvement that allows the height of the connecting point to be adjusted according to the change in the watering of the barge while maintaining the connection between the two ships without loosening.

[0002]

2. Description of the Related Art As a connecting device for connecting a push boat and a barge, various types of connecting devices have been proposed in addition to a rope used for a long time. Among them, it has considerable seaworthiness and
One of the features of the stepless friction locking system according to the invention of the applicant is that the height of the connecting point can be adjusted according to the change in the water level due to the loading and unloading of the barges while maintaining the connected state even when anchored. There is a coupling device (Japanese Patent Publication No. 54-37397).

This device is of a pure friction locking type and remains connected and held even while moored, and the connection is loosened at appropriate time intervals as the watering of the barge changes so that the barge and the pushing ship do not separate. By creating a state in which it can slide freely only in the vertical direction, it is possible to respond to a change in the watering of the barge by repeating the action of reconnecting both ships under the condition that they are naturally floating. However, as the fate of the pure friction locking method, there was a weak point that when the waves became high during the joint navigation, relative slippage between the two ships occurred in the vertical direction, making the joint navigation difficult.

Therefore, the applicant of the present invention has proposed a coupling device using both the friction locking method and the multi-step tooth selective meshing method (Japanese Patent Publication No. 3-8).
1989), and for the time being achieved the goal of enabling high-speed seakeeping performance while allowing for stuttering adjustment while docking and unloading. With this combined device, multistage tooth selective meshing is performed during stuttering adjustment. After the lock is completely released and the connection is made only by the pure friction lock, the same method as that of the above-mentioned stepless friction lock system is adopted. As described above, in both of these two types of connecting devices, the water-saving adjustment cannot be performed unless the connection is loosened so that the two ships can slide freely in the vertical direction.

Needless to say, it is only necessary to loosen the connection in such an extremely short time. However, when exchanging cargo with other ships offshore rather than in the port, or when the civil engineering materials piled on the barge are dropped into the sea. In addition, loosening the friction locking connection to adjust the waterfall when the waves are high, such as when performing sand sampling work in which the sand on the seabed is sucked by a sand pump equipped on the barge and loaded in the barge of the barge The pusher may immediately make a violent up-and-down motion and feel dangerous. In addition, it may happen that the waves are connected during the relative up-and-down motion due to this wave, and they are not connected in a properly adjusted water-saving relationship.

[0006] Such a problem is to loosen the connection between the pushing ship and the barge by frictional locking when adjusting the water so that the two ships do not separate in the front / rear and left / right directions but can slide freely in the up / down direction. This is due to the fact that both ships were temporarily left floating.

Therefore, an object of the present invention is slidably provided on a crimping body of a connecting device (Japanese Patent Publication No. 3-8998) which uses both the friction locking method and the multi-step tooth selective meshing method. The wedge body is used as the first wedge body, and the second wedge body is slidably provided on the support body that is attached to the crimp body outside the wedge body and slides in the vertical direction by the operation of the hydraulic cylinder or the like. While sliding the body intermittently in the vertical direction,
-Although the second wedges are alternately projected from the end face of the crimping body in order, and at least one of the wedges is always engaged and maintained so as to prevent free mutual vertical movements of the two ships, It is an object of the present invention to provide a coupling device between a pushing boat and a barge, which can change the coupling height of the pushing boat, that is, the drinking water, to perform artificially controlled drinking water adjustment.

[0008]

In order to achieve the above-mentioned object, the pusher-barge connecting device, which is a feature of the present invention, has a recess formed in the stern of the barge into which the bow of the pusher can be inserted. , Both side walls of this recess are provided along the vertical direction with a groove that opens toward the recess and has a width that gradually increases toward the opening side. And a front hypotenuse surface and a rear hypotenuse surface which are vertical planes on the stern side, and a bottom surface connecting the front and rear hypotenuse surfaces with the bottom of the groove, and the bottom surface is substantially along the vertical centerline. From the upper part to the lower part at substantially equal intervals, and each is provided with recesses of the same shape that open toward the recess, while the pusher has It is projectable from both sides, and the above-mentioned recess is A connecting shaft provided with a crimping body that can be closely fitted to the groove at an arbitrary height in the front position is provided, and the connecting shaft is associated with a hydraulic cylinder etc. In the connection device, the crimp body is actuated by a hydraulic cylinder or the like so that the tip end side can freely project from the end surface of the crimp body, and the tip end portion can be tightly fitted to one of the recesses. The wedge body is slidably provided, and is positioned at a height different from that of the first wedge body, and is operated by a hydraulic cylinder or the like to slide vertically along the height direction of the crimp body. A movable support is attached to the pressure-bonding body, and the support is actuated by a hydraulic cylinder or the like so that the tip side can project from the end face of the pressure-bonding body, and the tip portion is one of the recesses. The second wedge that can be fitted closely with It is those composed of Te.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 8, a recess 2 into which a bow 4 of a push boat 3 can be inserted is provided at the stern of the barge 1, and the recess 2 is formed when the push boat 3 is connected to the barge 1.
The bow 4 portion of the push boat 3 is formed in a size to be inserted into the recess 2 with a required gap. On both side walls of the recess 2, there are provided grooves that open toward the recess 2 such that their widths gradually increase, preferably grooves 5 having a trapezoidal cross section and extending vertically as shown in the drawing.

The groove 5 comprises a front oblique side surface 6 and a rear oblique side surface 7 which are vertical planes which correspond to the bow side and the stern side of the barge 1, respectively, and the bottom surface 8 of the groove 5, and the bottom surface 8 has the bottom surface. 8 are arranged in multiple stages at substantially equal intervals along the center line in the direct direction, and each of them is provided with recesses 9, 9 ′, 9 ″ ... These recesses 9, 9 ', 9 ". . . . Between each other is raised 1
It is formed at 0, 10 ', 10 "...

Thus, two vertical planes, namely the front hypotenuse surface 6 and the rear hypotenuse surface 7, and the depressions 9, 9 ',
Groove 5 whose bottom part 8 has a 9 ″ ...
As will be described later, accepts a crimping body attached to the tip of the connecting shaft projecting from both sides of the push boat 3, crimps the crimping body to the front slanted surface 6 and the rear slanted surface 7, and further projects from the crimped body. The first and second wedge bodies receive the tips of the first and second wedge bodies in a recess at a height position corresponding to the relation of water-driving at that time, and form a crimping and biting locking portion of a system capable of supporting the recess.

On the other hand, a connecting shaft 12 is slidably mounted on a relatively long bearing 11 provided at symmetrical positions with respect to the center line of the hull on both sides of the bow of the push boat 3 near the bow. The inner end of the boat is connected to a piston rod 14 of a hydraulic cylinder 13 provided on the hull of the push boat 3 by a joint 15 that allows relative rotation with respect to each other.

The connecting shaft 12 is moved forward and backward by the action of a hydraulic cylinder 13 which is operated by a hydraulic pressure sent from a hydraulic pressure source (not shown) provided inside the ship. By supplying the hydraulic pressure supplied by a pressure accumulator or the like (not shown) through a check valve (not shown), the force for pushing outward is maintained, and at the same time, the connecting shaft 12 may be pushed back by the force from the outside. In this case, the check valve works to prevent this. In addition,
As a mechanism for moving the connecting shaft 12 forward and backward, it is possible to use another type of device such as a combination of a rotary motor and a screw rod.

A bulge 21 is provided at the outboard end of the connecting shaft 12, and a vertically long crimping body 23 is rotatably attached to this by a horizontal pin 22. The outer surface of the crimping body 23 has a cross-sectional shape corresponding to the cross-sectional shape of the groove 5 of the barge 1, preferably a trapezoidal cross-sectional shape as shown in the drawing, the dimensions of which are the connecting shaft 1
2 is pushed out of the ship by the action of the main hydraulic cylinder 13, and when the crimping body 23 is pushed into the groove 5, the front oblique side surface 26 and the rear oblique side surface 27 of the outer surface of the crimping body 23 have the groove 5
Of the front oblique side 6 and the rear oblique side 7,
The end surface 28 has a protrusion 1 formed on the bottom surface 8 of the groove 5.
It does not come into contact with 0, 10 ′, 10 ″ ... In addition, in order to rotatably attach the crimping body 23 to the connecting shaft 12, in addition to the horizontal pin 22, a spherical joint (not shown). No)
Etc. can be used.

The crimping body 23 is provided with a guide hole 3 at a position different in height from the pin 22 substantially on the vertical center line.
1 is provided with a tip 32a having a recess 9 in the groove 5,
A long first wedge body 32 having a shape corresponding to the shape of 9 ', 9 "... Is slidably inserted. The inside of the first wedge body 32 forms a cylindrical space. None hydraulic cylinder 33
The piston 34 is fitted into the piston rod 35, the piston rod 35 penetrates the lid 36 and projects rearward, and the notch 37 provided in the vicinity of the outer end thereof is provided with the crimp body 23.
The hook-shaped projection 39 at the other end of the stopper 38 fixed to the rear surface is engaged to stop the movement of the piston rod 35 in the longitudinal direction.

Two passages 40 and 41 are opened in the piston rod 35, one of which communicates with the head side of the first sub-hydraulic cylinder 33 and the other of which communicates with the rod side. The outer ends of the high pressure hoses 42, 4
3, the flow paths 44 and 45 in the connecting shaft 12, and the high-pressure hoses 46 and 47, and the like, are connected to a hydraulic pressure source (not shown) in the ship, and the hydraulic cylinder 33 is operated by the hydraulic pressure sent from this. The first wedge body 32 slides in the lateral direction so that the tip portion 32a thereof projects from the end surface 28 of the crimp body 23.

On the other hand, the horizontal pin 22 is provided on the rear side of the crimping body 23.
And a rectangular recess 4 at a position different in height from the guide hole 31.
8 and the protrusions 5 are provided in the guide grooves 49, 49 'on both sides thereof.
A support 50 is provided so that 1, 51 ′ can fit and slide in the recess 48. A guide hole 52 having a shape similar to that of the guide hole 31 is provided substantially at the center of the support body 50, and the tip portion 53a corresponds to the shape of the recesses 9, 9 ', 9 "... In the groove 5. A long second wedge body 53 having a shape is slidably inserted, and the inside of the second wedge body 53 forms a cylindrical space to form a hydraulic cylinder 54, and a piston 55 is fitted therein. Then, the piston rod 56 penetrates through the lid 57 and projects rearward.

A notch 58 provided near the outer end of the piston rod 56 is engaged with a hook-shaped projection 60 at the other end of a stopper 59 fixed to the rear surface of the support body 50, and the length of the piston rod 56 is increased. The movement in the vertical direction is stopped. Two passages 61 and 62 are opened inside the piston rod 56, one of which communicates with the head side of the hydraulic cylinder 54 and the other of which communicates with the rod side, and the outer ends of these communicate with the high pressure hose. 63, 64, a flow path 65 in the connecting shaft 12,
66, further connected to a hydraulic pressure source (not shown) inside the ship by high pressure hoses 67, 68, etc., and hydraulic cylinder 54 is actuated by hydraulic pressure sent from this, and second wedge body 53 slides laterally. Then, the tip portion 53a is the end surface 2 of the crimping body 23.
It has a structure that projects more than 8.

Further, the support body 50 preferably contains two upwardly directed hydraulic cylinders 69, 69 ', and pistons 70, 70' fitted therein are piston rods 71, 72 extending upward and downward. And 71 ', 72'
Which, after penetrating the upper and lower lids 73, 74 and 73 ', 74' of the hydraulic cylinders 69, 69 ', then the upper ends 75, 75' of the upward piston rods 71, 71 '.
75 'reaches the upper end surface 48' of the recess 48, and the lower ends 76, 76 'of the downward piston rods 72, 72' reach the lower end surface 48 "of the recess 48, respectively.

Piston 7 of hydraulic cylinder 69, 69 '
The spaces above 0 and 70 'are connected to each other by a communication flow passage 77, and the spaces below the pistons 70 and 70' are connected to each other by a communication flow passage 78, which are high pressure hoses 79 and 80, A hydraulic pressure source (not shown) in the ship by the passages 81 and 82 in the connecting shaft 12 and the high pressure hoses 83 and 84.
The support body 50 is moved relative to the crimp body 23 by simultaneously operating the hydraulic pressure sent to the space above or below the piston 70, 70 'of the hydraulic cylinder 69, 69'. The second wedge body 53 moves downward or upward, and the relative height of the second wedge body 53 on the pressure-bonding body 23 changes downward or upward.

The range in which the support 50 can move vertically within the recess 48 is the recess 9 provided in the groove 5.
The distance is substantially equal to the distance 9 ', 9 "... And is not less than the distance.
When the front oblique side surface 26 and the rear oblique side surface 27 are fitted with coatings 29 and 30 having a large friction such as hard rubber, the pressing force of the pressing body 23 after the pressing body 23 is pushed into the groove 5 is maintained, so that the pressing body 23 is pressed. A large frictional force due to the wedge action can be generated between the groove 5 and the groove 5, and the crimping body 23 can be prevented from sliding to a great extent in the groove 5 by the action of waves.

Next, the operation and operation of the coupling device of the present invention according to the above embodiment will be described. Before connecting,
As shown in FIGS. 1 and 2, the connecting shaft 12 is drawn into the bearing 11 and is in a position retracted toward the inside of the push boat 3. A soft fender 4a is usually attached to the tip of the bow 4 of the pusher 3. The bow 4 of the push boat 3 is inserted into the recess 2 of the barge 1, and after the fender 4a comes into contact with the innermost end of the recess 2, the hydraulic cylinder 13 is operated to operate the connecting shaft 1
When 2 is pushed out in the outboard direction, the crimping body 23 enters into the groove 5, and when the front and rear hypotenuse surfaces 26 and 27 contact the front and rear hypotenuse surfaces 6 and 7 of the groove 5, respectively, the connecting shaft 12 Stop the outward movement of.

Here, the hydraulic cylinder 13 is operated for a short time in the direction opposite to that at the time of connection so that the connecting shaft 12 can be retracted very slightly, or the connecting shaft 12 cannot be positively retracted. Simply release the pressure of the hydraulic cylinder 13 that pushes it outward, immediately send pressure oil to the hydraulic cylinder 33 to operate it, and push out the first wedge body 32, the tip portion 32a will Recesses 9, 9 ',
Choose a recess at approximately the same height out of 9 "... and fit it into it.

At this point, pressure oil is again sent to the hydraulic cylinder 13 to push the connecting shaft 12 outward, and the front and rear oblique side surfaces 26, 27 of the crimping body 23 are moved to the front and rear oblique side surfaces 6, 6. If they are crimped to each other, the push boat 3 is firmly and surely connected to the barge 1 due to the combined effect of the crimping of the crimping body 23 and the groove 5 and the engagement of the recess and the first wedge body 32. It is capable of navigating in high waves without relative vertical slippage between. Crimped body 23 during connected navigation
Is press-fitted into the groove 5 of the barge 1 and moves integrally with the barge 1, and the connecting shaft 12 and the crimping body 23 cannot perform relative rotational movement. It will make a reciprocating roundabout movement at an angle equal to the swaying angle.

As described above, the front and rear hypotenuse surfaces 26 and 27 of the crimping body 23 have coatings 29 and 3 having a large friction.
When 0 is installed, the hydraulic cylinder 1 with the crimping body 23 being pushed into the groove 5 in the initial stage of connection.
By maintaining the pressure of 3 and holding the force of press-fitting the crimping body 23 into the groove 5, the frictional force between the coatings 29, 30 and the front and rear oblique sides 6, 7 of the groove 5 is maintained to move up and down. If slippage is prevented, it is possible to maintain a state where temporary connection should be made only by frictional force.

Further, the case where the stall water of the barge 1 changes due to loading or unloading while the ship is moored will be described for the case where the stall water gradually deepens due to the loading. First, the hydraulic cylinders 69, 69 'are operated to raise the support body 50 to the highest position, and then the hydraulic cylinder 54 is operated to push out the second wedge body 53, and the tip portion 53a thereof is recessed. Insert in the same height of 9 ', 9 "...

Next, the hydraulic cylinder 33 is operated to retract the first wedge body 32 to remove it from the recess, and the hydraulic cylinders 69 and 69 'are operated to slide the support 50 along the crimp body 23. If it is moved and lowered to the lowest position, the crimping body 23
The height relative to the barge 1 of the second wedge body 53 is 9,
Since it does not change by being fitted into one of 9 ', 9 "..., the guide groove 49 of the crimping body 23 of the support 50,
Sliding down movement along 49 'means that the crimping body 23 and thus the pusher 3 ascend relative to the barge 1.

When this operation is completed, the first wedge body 32 is fitted into one of the recesses 9, 9 ', 9 "... Changes by one step with respect to the barge 1. By repeating this operation at an appropriate interval according to the situation of the barter 1's watering change, it is possible to adjust the watering of the pusher 1 without loosening the connection. Even when the water consumption of the barge 1 gradually decreases due to the unloading, the water consumption of the push boat 1 can be adjusted by performing the operation in the reverse order.

[0029]

The present invention is as described above, and the sea resistance performance of the connecting device is the same as the connecting device of the present invention (Japanese Patent Publication No. 3-8998) in which the friction locking method and the multi-step tooth selective meshing method are used in combination.
Although it is the same as the one in the bulletin), in the case where the water drainage adjustment is performed while docking and unloading while the boat is still connected, the conventional connecting device including the previous invention loosens the connection and temporarily suspends both ships. Since there is a danger of causing a large up-and-down motion when the wave is high, since the present invention allows the dwarfing adjustment to be performed while the connection is securely made without loosening the connection. It is extremely easy and safest to perform water-stabilizing work.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention partially cut away.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is an enlarged perspective view of the groove shown in FIG. 1. FIG.

FIG. 4 is an enlarged perspective view of the crimp body and its related members shown in FIG. 1, and is a view in which a wedge body projects.

5 is a plan view of the crimp body shown in FIG. 1. FIG.

FIG. 6 is a side sectional view of what is shown in FIG. 4, with the wedge retracted.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

8 is a sectional view taken along the line CC of FIG.

[Explanation of symbols]

1 is a barge, 2 is a recess, 3 is a push boat, 4 is a bow, 5 is a groove, 6
Is the front hypotenuse, 7 is the rear hypotenuse, 8 is the bottom, 9 and 9 ',
9 "is a recess, 12 is a connecting shaft, 13 is a hydraulic cylinder, 1
5 is a joint, 22 is a horizontal pin, 23 is a crimping body, 26 is a front hypotenuse surface, 27 is a rear hypotenuse surface, 32 is a first wedge body, 32a
Is a tip part, 33 is a hydraulic cylinder, 50 is a support, 53
Is a second wedge body, 53a is a tip portion, 54 is a hydraulic cylinder, and 69 and 69 'are hydraulic cylinders.

Claims (1)

[Claims] 1. A recess is formed in the stern of the barge into which the bow of a pusher can be inserted, and both side walls of the recess are opened to the recess and the width gradually increases toward the opening side. Grooves of larger shape are provided along the vertical direction.These grooves are vertical planes that correspond to the bow side and the stern side of the barge, that is, the front oblique side and the rear oblique side, and the front and rear oblique sides to the bottom of the groove. And a bottom surface which is connected to the bottom surface, and the bottom surface is arranged in a multi-tiered manner at substantially equal intervals along the vertical center line from the upper part to the lower part, and each of them faces the recess. On the other hand, the push boat is capable of projecting from both sides of the push boat, and the outer end of the push boat has an arbitrary height at the position immediately before the above-mentioned depression. Provide a connecting shaft with a crimping body that can be closely fitted to the groove. In a connecting device between a push boat and a barge which is configured to be operably associated with the connecting shaft to a hydraulic cylinder or the like, the crimping body is actuated by the hydraulic cylinder or the like so that a tip portion from an end surface of the crimping body is provided. A first wedge body is provided slidably on the side, the tip of which is in close contact with one of the recesses, and is positioned at a height different from that of the first wedge body. Then, a support that is actuated by a hydraulic cylinder or the like and is slidable in the vertical direction along the height direction of the crimp body is attached to the crimp body, and the support is operated by the hydraulic cylinder or the like. And a second wedge body slidably provided on the tip end side of the crimping body from the end surface thereof, the tip end portion of which is in close contact with one of the recesses and is slidably provided. Connecting device between ship and barge.