JPS58136585A - Ship mooring method - Google Patents

Abstract

PURPOSE:To easily and safely motor a ship, by leading an eye splice carried at the front end of a muli-step cylinder device to a ship mooring bit in association with a detected signal indicating the position relative to the ship mooring bit on a quaywall corresponding to the multi-step cylinder device. CONSTITUTION:The transmission and receiving of signals between the first to third PTRs 50A, 50B, 50A and a PTR53 on a quaywall 47 causes a position of a multi-step cylinder device 9 relative to a mooring bit 52 to be calculated by and stored in a main computer 55 and the ship mooring bit 52 for accessing each multi-step cylinder device 5 is determined and is inputted in the main computer 55 from which a signal is transmitted to an auxiliary computer 56 incorporated in a base 4, for driving a turning hydraulic motor, a derricking cylinder and the multi-step cylinder device 9. Thereby, each eye splice is led and moored to each ship mooring bit 52.

Description

[Detailed description of the invention] The present invention relates to a method for mooring a ship.

Conventionally, when a large ship is moored at a quay, its mooring line is carried to quay J11 by a tugboat, and after the ice splice at the end of the mooring line is hooked to a mooring bit on the quay, the mooring line is wound up. The mooring was in progress. However, the above-mentioned mooring work was carried out manually by many workers, and was laborious and dangerous work.

Therefore, the purpose of zero-start BA is to provide a mooring method that allows a small number of people to perform mooring work easily, quickly, and safely.

That is, the present invention provides a multi-stage cylinder device that is rotatably and vertically supported at a plurality of locations along the upper deck of a ship and has an eye splice at its tip, and a quay corresponding to each of these multi-stage cylinder devices. The relative position with respect to the upper mooring bit is detected by a detection means, and the signal from the detection means causes the multi-stage cylinder device to swivel and move up and down, as well as to move its piston rod back and forth to open the eye splice at its tip. A mooring method characterized by guiding the mooring bit to the above-mentioned mooring bit.

Hereinafter, one embodiment of the present invention will be described based on the drawings. 1st
6, (1) is a plurality of mooring device bodies provided along one side of the upper deck (3) of a large ship (2), which are driven and controlled by a control pupil to be described later. The mooring device main body (1) Fi is provided on the upper deck (3) on the 1st string side and has a nine base (4) and is rotatably supported on the base (4) via a swing bearing (5). A multi-stage type having a support (6) and an ice cube chair (7) at the tip, and a base (9a) supported on the upper part of the support (6) via a horizontal shaft (8) so as to be able to rise and fall freely. (3-stage type in this embodiment) Cylinder * 1112 (9), Rete arranged in the base (9a),
A hydraulic motor (an example of a turning device) (6) rotates a large gear Q1 at the bottom of the support (6) via a small gear OOt, and when one end is connected to the side of the support (6), the Ka end is Multi-stage cylinder device (9) K connected hydraulic cylinders (
An example of an elevating device) o4. In addition,(
4405 (le#i hydraulic motor (b), hydraulic cylinder (to), multi-stage cylinder device (9) hydraulic line,
α? ) 08 G groan is hydraulic line 04 (Lie (1
Hydraulic switching valve installed in the middle of 11, ■ (2) @ is the hydraulic supply line before each hydraulic switching valve (B) (To) (To)
14a015g) (16a) are nine flowmeters.

Here, the multistage cylinder device (9) will be explained based on FIG. 4. The multi-stage cylinder device (9) has an integral cylinder having a first cylinder chamber 4 therein, and a second cylinder which is movably disposed inside the first cylinder chamber and has a second cylinder chamber inside. 1 piston rod (E), a 2nd piston rod which is arranged to be able to move in and out of this IJ2 cylinder chamber (E) and has a II 3 cylinder chamber inside, and a 2nd piston rod that can be moved out and out of this 3rd cylinder chamber. It consists of a freely arranged third piston rond. A stopper...8η (2) is provided on the inner wall of each cylinder chamber (E) to restrict the retracting position of each piston rod (E).
A stopper @ e4 (to) is provided on the outer periphery of (to) 4 for each piston rod cI4 to restrict the protruding position of (to) 4. Then, in order to make each of the piston rods (4) successively protrude from the outside, the first head side cylinder chamber (
23a) into the second head side cylinder 1 (25a) and from the second head side cylinder chamber (25a) into the third head side cylinder chamber (27a). ) is provided in the sequence valve, and in order to discharge the oil in the rod side cylinder chamber (23b x 25b), the 10th rod side cylinder chamber (23b) is provided.
From inside the 20th side cylinder chamber (25b), the 2nd
Eleventh and second check valves (to) are provided which communicate from the 0-side cylinder chamber (25b) to the 11N30-side cylinder chamber (27b), respectively. In addition, in order to move each piston rod g4@(2) in and out sequentially from the center, the second
Pressure oil is supplied into the 0-side cylinder chamber (25b) and from the 20th-side cylinder chamber (25b) to the 10th-side cylinder chamber (23b). 3. 4th
A sequence valve-1 is provided, and its head side cylinder m! (25a) In order to drain the oil in (27a), the second head cylinder chamber (27a) is
In the head side cylinder chamber (25a), there are third and fourth check valves that communicate from the second head side cylinder chamber (25a) to the $1 head side cylinder chamber (23a), respectively.
One is provided. A high pressure hose from one boat of the hydraulic switching valve DI is connected to the first head side cylinder chamber (23a), and the other one is connected to the 9th and 30th head side cylinder chamber (27b). A high pressure hose from the boat is connected. In addition, a hose reel is interposed in the middle of the high pressure hose connected to the 30th side cylinder chamber (27b) K so as to accommodate the movement of the piston rods (e) and (to) four. . Also,
Each of the sequence valves IIU is configured to open when the pressure within the cylinder chamber 2 exceeds a certain value. Therefore, in this configuration, when pressure oil is supplied into the first head side sill chamber (23a), the first piston rond (e) first protrudes 4.
．． The first piston rod (to) is the stopper),
i: i) When stopped, the first head side cylinder chamber (23
a) When the pressure of , -4, reaches the set pressure of the first sequence valve (to), the first sequence valve (to) opens;
Next, the second piston rod sticks out, and even more! After the 82 piston rod member protrudes, the third piston rod 4 protrudes. In addition, each rod side cylinder chamber (23b) (2
5b) (27b) is directed through the first and second check valves cnw.

Conversely, when pressure oil is supplied into the 30th cylinder side cylinder chamber (27b), the third piston rod, the second piston rod (2), and the first piston rod 4 move in and out in sequence. By the way, as shown in FIGS. 5 and 6, the eye splices (7) ## provided at the four tips of the third piston rod
'i, the workers are on the shore! ! ! Auxiliary side mooring bit (goods) K
For easy locking, it is attached so that it can be rotated and moved forward and backward.

Next, the control device for driving and controlling the main body of the mooring device will be explained. As shown in FIG. 2 and FIG.
4) First, second, and third pulse signal transmitters/receivers (Pulse si-gnal T
Transmitter & Receiver and below, P
(referred to as TR) (50A) (50B) (50C) and each mooring pin on shore Mloη) 62
The mobile PTRelJ installed in 1 and the antenna 6
11 and a mobile PTR 631, and a main computer (usually installed in the wheelhouse) that stores and processes the signals from the detection means, and a main computer connected to this main computer group by wire or wirelessly. An auxiliary computer that drives the turning device (6) for the multi-stage cylinder device (9), the elevating device (b), and the piston rond of the multi-stage cylinder device (9)) (7) 4. It is made up of a group. By the way, the first antenna of the antenna 6Ll
~3rd PTR (50A) (50B) (50C) #i,
It transmits pulse signals with the same pattern at regular intervals, and the mobile PTR6J on the Ma-ku Quay (47) has antennas 611 and each PTR (50A) (50B) (50C).
), it immediately sends back the same signal. In addition, if a plurality of mobile PTRs are provided for each mooring pin, they are made to respond to different signals in advance, and this mobile PTRωi
Either there is no time lag between receiving the t signal and replying to the same signal, or even if there is a time lag, the reply is always returned with a certain delay. And, PTRMa3 of these antenna 611 side and quay-example
1, the relative position between the multistage cylinder device (9) and the mooring bit is detected. That is, as shown in FIG. 9(a), the first PTR (50A) and a predetermined number, for example,
, l Mobile PTR (53A) and transmission (e
) and reception (f) (t) K Therefore, the first PT
The distance (rx) between R (50A) and No-1 mobile PTR (53k) is known. Similarly, the distance (r2) between the 1st 2nd PTR (50B) and No. 1 mobile PTR (53A) and the 3rd P1'R (50C) and No. 1 mobile PTR (53A).
3A) respectively. Then, the center (0) of antenna 6υ and No. 1 mobile PTR (5
3A) That is, the following three-dimensional quadratic simultaneous equations can be set up regarding the l mooring bit (52A). In addition, in the formula, a, b, the center direction of the Fi antenna 6υ and the first
to the third PTR (50AX50BX50C), which is the coordinate position of ("y * ylPl z (p) tj mooring pin 63 with respect to the center (2) of the antenna 611).

- By solving K (1), (2), and (3), the position of the 6 mooring bits ("6 + 'lo, + 26
) can be understood. However, the solution to the above simultaneous equations is not unique, but x6. >0. The solution is determined by the condition of z(, <0. W1(x6.Y6.Z
o, ) is determined, as shown in FIG. 8, the antenna 61
With respect to the center (6) of 1, the straight line distance W1(t), elevation angle (Q%), and horizontal rotation angle (turning angle) (QR) are determined by the following formula.

Therefore, if the multi-stage cylinder device (9) is rotated, raised, raised, and extended tm7 according to the above six values (1) (Q%, ) (QR), the eye splice (7) at the tip will be No. 1 for ship maintenance. bit 621. In addition, in addition to the calculations of each of the above equations carried out by the main computer θ in the wheelhouse, the auxiliary computer also calculates the multi-stage formula necessary for the tip eye splice of this device to approach the quay bit. Schilling - A flow meter installed in the hydraulic line that calculates the amount of oil to the equipment, the amount of oil to the hydraulic motor for swinging, and the amount of oil to the hydraulic cylinder for elevation, and sends the calculated amount of oil to each device. A switching valve attached to the hydraulic line is controlled by a signal from the hydraulic line. Similarly, if you want to detect the relative position with No. 2 mooring PTR (52B), use the first to third PTRs (50A) (
50B) (50C), No. February Mobile PTR (
53B), for example, a signal as shown in FIG. 9(b) may be output.

Next, mooring work will be explained based on the overall configuration.

First, the ship (2) is brought close to the shore as shown in Figure 1. And each ans 61
1 (7) 1st to 3rd PTR (50A) (50B) (5
0C) and each mobile PTR (53) on the quay-η side, and the relative position between the multi-stage cylinder device (9) and each mooring piston 63 are calculated by the main computer 651. I will remember it together. Next, the hull waterline before and after cargo handling is input into the main computer 5. Since there is a limit to the amount of expansion and contraction of the multi-stage cylinder device (9), the distance between the multi-stage cylinder device (9) and the mooring pit (6J) must always be within that limit during cargo handling.

Therefore, since I am busy inputting the waterline before and after cargo handling, I have to pay a multi-stage cylinder ¥eI! (9) calculates the mooring bit 62 that can be approached and displays it on the CRTK of the main computer. and an accessible mooring pit) 621
Once this is known, the person in charge of the mooring work of the vessel determines the mooring bit δδ to be accessed by each multi-stage cylinder device (9), taking into consideration the wind direction, tidal flow, etc., and inputs it into the main computer (K). . The main computer sends a signal to the auxiliary computer (g) built in the base (4) of each multi-stage cylinder device (9), and the auxiliary computer marks the reverse rotation hydraulic motor (6), The elevation hydraulic cylinder Q3 and the multi-stage cylinder device (9) are each driven and controlled, and the eye splice (7) of each multi-stage cylinder device (9) is set to a predetermined mooring pitch (6L).
3, and thus the mooring bit iJK guided eye splice t7) #'i is anchored to the mooring bit 15Δ by the wharf side worker. The multi-stage cylinder device (9) is equipped with an automatic tension adjustment mechanism so that the cylinder automatically expands when the tension exceeds a certain level and automatically contracts when the tension falls below a certain level. ing. The above procedure results in a 70-chart as shown in Figure 1θ.

As described above, according to the mooring method of the present invention, the ice splice on the ship side can be automatically guided to the mooring bit on the quay side, so a small number of onboard workers (1 to 2 people) can Since the ship can be moored easily, quickly and safely, it is possible to save labor in mooring work.

[Brief explanation of the drawing]

Figure thIFi shows one embodiment of the present invention. Figure 1 is an overall plan view, Figure 2 is an enlarged view taken in the direction of arrow II in Figure 1, Figure 3 is a detailed view of Figure 2, and Figure 4 is a detailed view of Figure 2. An enlarged sectional view of the multi-stage cylinder device, Figure 5 is a detailed plan view of the eye splice, and Figure 6 is a detailed plan view of the ice splice.
The figure is a side view, FIGS. 7 to 9 are operation explanatory diagrams, and FIG. 10 is a flowchart of Fi ship maintenance work. 1)...Mooring device body, (2)...Large ship, (
3)...Upper deck, (6)...Support, (7) eye splice, (9)...Multi-stage cylinder device, (Foundation)...Hydraulic motor (I same device), □ □□...Hydraulic cylinder (elevation device), 17)...Wharf, -...
Mooring pit, ---control device, (50A)...1
1! ■PTR, (50B) --- 2nd PTR, (50B)
C)--3rd PTR, t511... antenna, 63
... Mooring bit, mobile PTR for ω. −...detection means, older sister...main computer, ω...
・Assistant, computer agent Yoshihiro Morimoto Figure 2 (2)
1st σ diagram

Claims (1)

[Claims] 1. A multi-stage cylinder device that is rotatably and vertically supported at multiple locations along the upper side of the upper deck of the ship and has an ice splice pipe at its tip, and each of these multi-stage cylinder devices 1/Ct4 on the corresponding quay. A detection means detects the relative position of the mooring bit with respect to the mooring bit, and in response to a signal from the detection means, the multi-stage cylinder device is rotated and raised, and its piston rod is moved in and out to open the eye splice at its tip. A mooring method characterized by leading to the above-mentioned mooring bit.