JPH0995297A - Hull connecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of damage to a connection part by forming pin holes in a verge, and providing blocks supported by the verge freely to be elevated. SOLUTION: A pin 3, which is to be appeared and disappeared from/into a broadside toward a verge 2, and a pin driving cylinder 4 for driving the pin 3 for forward and backward movement are provided in each broadside of a pusher boat 1. A stern part of the verge 2 is formed with a recessed part 5, in which the pusher boat 1 goes in and out, and this recessed part 5 is provided with a block 7, which is formed with a pin hole at a position corresponding to the pin 3 of the pusher boat 1, freely to be elevated. During the sailing, in the case where a draft difference is generated relatively slowly, since the pin holes 6 and the blocks 7 are elevated for following in response to the elevation of the pins 3, draft difference is absorbed by the elevation of the pin holes 6 and the blocks 7, and application of the displacement difference due to the draft difference to the pins 3, the pin holes 6 and the blocks 7 as a load is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hull connecting device for connecting a push boat and a barge.

[0002]

2. Description of the Related Art Conventionally, as a hull connecting device for connecting a push boat and a barge, for example, as shown in the front view of FIG. 4, a pin 1 projecting from a push boat 101 toward a barge 102.
03 and a large number of pin holes 104 formed in the barge 102 at appropriate intervals in the vertical direction, and one pin hole 104 selected from among the large number of pin holes 104 corresponding to the draft difference. There is one in which the pin 103 is inserted.

Further, in addition to the pin 103 and the pin hole 104, a pin called an outer pin 105 protruding from the push boat 101 toward the barge 102 and a vertically long groove 106 provided in the barge 102 are provided. When the draft difference fluctuates drastically due to time, the pin 103 should be attached to the pin hole 10
4, and the outer pin 10 is attached to the bottom of the groove 106.
There is also one that presses 5 and connects the pusher and the barge by friction between the outer pin 105 and the groove bottom. Furthermore, in this case,
A large number of the above-mentioned pin holes 104 are formed in the groove bottom of the groove 105 by forming them in the form of paragraphs, and the pin 103 extracted from the pin hole 104 is pressed against the groove bottom together with the outer pin 105. is there.

[0004]

In these conventional hull connecting devices, the draft difference between the push boat and the barge is adjusted stepwise with the vertical pitch of the pin hole 104 as a unit, so that the vertical pitch of the pin hole 104 is half the vertical pitch. It is not unusual that the drainage amount of the following draft difference acts as a load and the pin 103, the portion of the pusher supporting the pin 103 and the pin hole 104 are loaded.

Further, the pin 103 and the outer pin 105 are formed in the groove 106.
When pressed to the bottom of the pin, the pin 103 and the outer pin 105 are shockedly contacted and separated from the groove bottom due to the difference in the motion of the hull, and the pin 1
03, the outer pin 105, the portion of the pusher supporting these, the groove 106, etc. may be damaged.

The present invention has been made in view of the above circumstances, and provides a hull connecting device capable of absorbing a load due to a draft difference acting on a hull connecting portion and preventing damage to the connecting portion. The purpose is.

[0007]

In order to achieve this object, the present invention provides a hull connecting device having a pin for retracting from a push boat and a pin hole provided in a barge for inserting and removing the pin. Is formed, and a block supported by a barge so that it can be moved up and down is provided.

The block may be supported by a barge so that it can be raised and lowered within a predetermined range, but when connecting the block, it is necessary to position the block at a height where the heights of the pin and the pin hole match. Therefore, in the present invention, in order to facilitate the height adjustment of the pin hole and the block at the time of this connection, a cylinder for driving the block up and down is provided, and the block and the pin hole at the time of connecting the hull by expansion and contraction of this cylinder It is preferable to adjust the height of the pin to the height corresponding to the pin.

The drive source of this cylinder can be freely selected such as hydraulic pressure, pneumatic pressure, water pressure, and electricity. However, this cylinder has a block until the pin is pulled out from the pin hole after the pin is inserted into the pin hole. It is preferable to be able to freely expand and contract following up and down. For example, in the case of a hydraulic, pneumatic or hydraulic cylinder, the direction changeover valve is used to communicate the pressure receiving chambers on both sides of the piston of the cylinder so that the block can be freely expanded and contracted in accordance with the elevation of the block.

When a draft difference occurs between the pusher and the barge, the block having the pin hole moves up and down corresponding to the draft difference. As a result, the drainage amount of the draft difference does not act on the pin and the pin hole as a load, and the pin, the pusher part supporting the pin, the pin hole, the block and the barge part supporting the block may be damaged by this load. Also disappears.

In addition, when a ship motion difference occurs between the push boat, the barge and the hull, the motion difference can be suppressed by adjusting the internal pressure of the cylinder, electric braking, and the buffering action of the working fluid circuit of the cylinder.

Further, in the present invention, when the pin is slightly loosely inserted into the pin hole, the pin and the block collide with each other due to the difference in the motion of the hull to generate an impact. It can be buffered by the buffering action of the working fluid circuit of the cylinder.

In addition, in the present invention, the block and the barge may collide with each other due to this impact, and this impact is generated by disposing a cushioning material such as rubber between the block and the barge. Can be buffered.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The following is a detailed description of a hull connecting device according to an embodiment of the present invention with reference to the drawings.

FIG. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view. Pins 3 projecting and retracting from the port side toward the barges 2 on both port sides of the push boat 1 are driven forward and backward. A pin drive cylinder 4 is provided.

A recess 5 is formed at the stern of the barge 2 so that the pusher 1 can move in and out, and a block 7 having a pin hole 6 formed at a position facing the pin 3 of the pusher 1 protruding into the recess 5 can be lifted and lowered. To be This barge 2 has this block 7
A guide 8 for guiding the lifting and lowering of the block 7 and a hydraulic cylinder 10 suspendedly supported by a column 9 standing on the deck and connected to the block 7 at the lower end are provided. By expanding and contracting the hydraulic cylinder 10, the height of the block 7 is increased. The pin hole 6 can be adjusted to have the same height as the pin 3 of the pusher 1.

After the height of the pin hole 6 and the block 7 is adjusted, the pin 3 is advanced and the pin 3 is inserted into the pin hole 4, whereby the push boat 1 and the barge 2 are connected.
After that, the pressure-receiving chambers on both sides of the piston of the hydraulic cylinder 10 are made to communicate with each other, and an appropriate throttle channel is interposed in the oil passage that makes these pressure-receiving chambers on both sides communicate with each other, so that the cylinder 10 expands and contracts more slowly than a certain amount. On the other hand, it freely expands and contracts,
It is designed to exert a cushioning effect against sudden expansion and contraction.

As a result, when the draft difference occurs relatively slowly, such as during navigation, the pin hole 6 and the block 7 can freely move up and down in response to the elevation of the pin 3, so that the draft is lifted. The difference is absorbed by the elevation of the pin hole 6 and the block 7, and the difference in drainage amount due to the difference in draft does not act on the pin 3, the pin hole 6 and the block 7 as a load. Therefore, the pin 3 and the pin hole 6 can be reduced in diameter to achieve weight reduction.

In addition, when a draft difference suddenly occurs during loading and unloading, the rocking action of the push boat 1 with respect to the barge 2 is suppressed by the cushioning action of the cylinder 10, and an impact is generated between the push boat 1 and the barge. In addition, the shock absorbing action of the cylinder 10 reduces the impact generated between the pusher 1 and the barge.

Further, in this embodiment, a cushioning material 11 made of rubber or the like is inserted between the block 7 and the guide 8 and is generated between the pusher 1 and the barge 2 by the cushioning action of the cushioning material 11. The shock in the lateral direction (lateral direction) is buffered.

When the vertical and lateral impacts are buffered in this manner, the pin 3, the portion of the pusher 1 supporting the pin 3, the cylinder 4, the pin hole 6, the block 7 and the guide 8 are damaged. Is prevented for a long period of time.

In the above-mentioned embodiment, a cylinder is provided for moving the block 7 up and down during connection, but a lifting device such as a chain block or a hoist can be used instead of this cylinder. It is also possible to use a screw jack that is hung on a column so as to be detachable and suspended, or a screw jack that is fixed to the bottom of the guide 8 and that receives the block 7 from below and moves up and down, a hydraulic jack, a hydraulic jack, and the like.

[0023]

As described above, in the hull connecting device of the present invention, the pin hole is formed and the block supported by the barge so as to be able to move up and down is provided. Therefore, even if a draft difference occurs in the hull, Since the pin hole is always moved to the same height as the pin with respect to the pin inserted in the pin hole, the drainage amount of the draft difference does not act on the pin and the pin hole, and the pin and the pin hole are made smaller in diameter to prevent the pushing ship. The weight can be reduced.

Further, in the present invention, particularly when the cylinder for raising and lowering the block is provided at the time of connection, it becomes easy to adjust the position of the block and the pin hole with respect to the pin at the time of connection.

Further, in this case, by using the cylinder and / or the drive circuit of the cylinder having a cushioning action, the swinging action of the pushing boat is suppressed by this cushioning action, and the impact generated between the pushing boat and the barge is suppressed. Can be relaxed.

[Brief description of drawings]

FIG. 1 is a front view of the present invention.

FIG. 2 is a side view of the present invention.

FIG. 3 is a plan view of the present invention.

FIG. 4 is a front view of a conventional example.

[Explanation of symbols]

 1 Pusher 2 Barge 3 Pin 6 Pin Hole 7 Block 10 Cylinder

Claims (3)

[Claims] 1. A hull connecting device comprising a pin to be pushed in and out of a push boat and a pin hole provided in a barge into which the pin is fitted and removed, wherein the pin hole is formed in the barge, and the barge is supported so as to be able to move up and down. A hull connecting device having a block. 2. The hull connecting device according to claim 1, further comprising a cylinder for driving the blocks up and down when connecting. 3. The hull connecting device according to claim 2, wherein the cylinder and / or the drive circuit for the cylinder has a buffering action.