JPH022798B2 - - Google Patents
Info
- Publication number
- JPH022798B2 JPH022798B2 JP4511786A JP4511786A JPH022798B2 JP H022798 B2 JPH022798 B2 JP H022798B2 JP 4511786 A JP4511786 A JP 4511786A JP 4511786 A JP4511786 A JP 4511786A JP H022798 B2 JPH022798 B2 JP H022798B2
- Authority
- JP
- Japan
- Prior art keywords
- safety valve
- tugboat
- valve
- towing
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 17
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Vehicle Body Suspensions (AREA)
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明はタグボートに搭載されているトーイン
グウインチの制御方法、更に詳しくはトーイング
ラインを伸長する場合に、操作が簡単でしかも迅
速な伸長が行なえる様な方法に関するものであ
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a method for controlling a towing winch mounted on a tugboat, and more specifically, a method for controlling a towing winch mounted on a tugboat, and more specifically, a method for extending a towing line that is easy to operate and can be extended quickly. It is concerned with methods such as
〈従来の技術及びその問題点〉
大型船の狭水域での移動に使用されるタグボー
トは、大型船を押す場合にはタグボート自体を大
型船に当接し、又引く場合にはトーイングライン
と称されるロープを介して大型船を引張り所望の
場所へ移動させる。この操作の中で大型船を引く
場合には、互いの船の大小の関係上タグボートは
ある程度離れた位置で引かなければならず、その
為に引く作業に入る前にはトーイングラインを伸
長させ、タグボートを大型船から離さなければな
らない。このトーイングライン伸長方法として従
来からなされている方法に下記の２通りの方法が
ある。即ち、
トーイングドラムを駆動させている油圧モー
タをトーイングラインが繰出される方向に回転
させトーイングラインを伸長させ乍らタグボー
トを後進させる。<Prior art and its problems> Tugboats used to move large ships in narrow waters are used to push the large ship by using the tug itself against the large ship, and to pull the ship by using what is called a towing line. A large ship is pulled and moved to a desired location via a rope. When pulling a large ship during this operation, the tugboats must be pulled at a certain distance from each other due to the size of the ships, so before starting the pulling process, the towing line must be extended. The tug must be moved away from the large ship. There are the following two methods that have been conventionally used to extend this towing line. That is, the hydraulic motor driving the towing drum is rotated in the direction in which the towing line is paid out, thereby extending the towing line and moving the tugboat backward.
トーイングドラムと油圧モータ−間のクラツ
チを切りタグボートを後進させ、トーイングラ
インを自由に伸長させる。 The clutch between the towing drum and the hydraulic motor is released to move the tugboat backwards and extend the towing line freely.
しかるに上記の方法にあつてはトーイングラ
インの伸長速度は、油圧モータ−の回転速度によ
つて規制され、その速度はタグボートの可能後進
速力に比べると大幅に遅く、迅速な伸長を要求さ
れる作業にとつては大きな障害となる。又トーイ
ングドラムに対するトーイングラインの巻着状態
によつてもラインの伸長速度は変わり、これらの
伸長速度に丁度匹適する速度でタグボートを後進
させねばならずその操船技術は困難を極めるし、
万一ラインの伸長速度以上の速さでタグボートを
後進させれば、油圧モータ−が破損する心配もあ
る。 However, in the above method, the extension speed of the towing line is regulated by the rotational speed of the hydraulic motor, and that speed is significantly slower than the tugboat's possible reverse speed, making it difficult to perform tasks that require rapid extension. It is a big obstacle for. The extension speed of the line also changes depending on how the towing line is wrapped around the towing drum, and the tugboat must be moved astern at a speed that is exactly suited to these extension speeds, making maneuvering techniques extremely difficult.
If the tugboat were to move backwards faster than the line's extension speed, there is a risk that the hydraulic motor could be damaged.
次に上記の方法にあつては、トーイングライ
ンの伸長速度の点では問題はないが、トーイング
ドラムのクラツチの嵌脱作業に時間をとられ、作
業の迅速性が損なわれると共に、トーイングドラ
ムはフリーの状態で回転する為に、次第に慣性が
付して回転は速くなり、必要以上にトーイングラ
インが操出される等の欠点があり、その伸長速度
の調整が困難である。又これをメカニカルブレー
キによつて制御しようとしても衝撃が大でブレー
キ系統の消耗が大である。 Next, with the above method, there is no problem in terms of the extension speed of the towing line, but it takes time to engage and disengage the clutch of the towing drum, impairing the speed of the work, and the towing drum is free. Since the towing line rotates in this state, it gradually gains inertia and rotates faster, resulting in disadvantages such as the towing line being steered more than necessary, and it is difficult to adjust its extension speed. Furthermore, even if an attempt is made to control this using a mechanical brake, the impact is large and the brake system is subject to considerable wear and tear.
〈問題点を解決する為の手段〉
本発明は上述の問題を解決する為に、タグボー
トの後進によつて張力が加えられるトーイングラ
インに常時ある一種以上のバツクテンシヨンを付
与し乍ら伸長させるという手段を採用するもので
あり、その要旨はタグボートに塔載したトーイン
グウインチのドラムに連結された油圧モータ−
と、舶用切換弁との間にバランスピストン型安全
弁を組み込み、同安全弁の作動圧を高圧及び低圧
の２種に設定し、かつ上記安全弁に対しストツプ
弁を介し断，続可能に外部安全弁を連結し、該外
部安全弁の作動圧を上記安全弁の低圧に一致せし
め、外部安全弁が作動状態となつた時のみ上記安
全弁は低圧の設定圧で作動し、それ以外の時は高
圧の設定圧で作動する構成となし、タグボートか
らトーイングラインを伸長するに際し、ドラムの
クラツチは嵌合状態となし、上記ストツプ弁を続
となし安全弁と外部安全弁とを連結状態となして
タグボートをトーイングラインが伸長する方向へ
走行せしめることを特徴とするトーイングウイン
チの制御方法である。<Means for Solving the Problems> In order to solve the above-mentioned problems, the present invention provides at least one kind of back tension to the towing line, which is tensioned by the backward motion of the tugboat, while extending the towing line. The gist of this method is to use a hydraulic motor connected to the drum of a towing winch mounted on a tugboat.
A balanced piston type safety valve is installed between the and the marine switching valve, the operating pressure of the safety valve is set to two types, high pressure and low pressure, and an external safety valve is connected to the above safety valve so that it can be disconnected and connected via a stop valve. The operating pressure of the external safety valve is made to match the low pressure of the safety valve, and the safety valve operates at a low set pressure only when the external safety valve is activated, and at other times operates at a high set pressure. When extending the towing line from the tugboat, the drum clutch is engaged, the stop valve is connected, the safety valve and the external safety valve are connected, and the tugboat is moved in the direction in which the towing line extends. This is a method of controlling a towing winch, which is characterized by causing the towing winch to run.
上述した本発明で用いる安全弁としては、ある
設定圧以上になると作動する他に、その設定圧よ
りも低い圧力で作動する別の安全弁と連結され、
該別の安全弁が該低い圧力以上で作動した場合に
は、同じく安全弁も作動する様なバランスピスト
ン型の物を用いる。又外部安全弁としてはある一
つの設定値で作動すればよいのでどんなタイプの
物を用いてもよい。 The safety valve used in the present invention described above operates when the pressure exceeds a certain set pressure, and is also connected to another safety valve that operates at a pressure lower than the set pressure.
A balanced piston type device is used that also operates the safety valve when the other safety valve operates at a pressure equal to or higher than the low pressure. Furthermore, any type of external safety valve may be used as it only needs to operate at a certain set value.
〈実施例及び作用〉
以下本発明方法を、その実施例を示す図面を参
酌し乍ら詳述する。<Examples and operations> The method of the present invention will be described in detail below with reference to the drawings showing examples thereof.
図面は本発明方法で用いる油圧回路図を示し、
図中１は油圧ポンプで、この油圧ポンプ１から圧
送される油は舶用切換弁２を経て、トーイングラ
インを繰出す方向にドラムを回転させる場合には
図中の矢印Ａ方向へ流れ、油圧モータ−３に至り
一巡し、逆にトーイングラインを巻上げる場合に
は図中の矢印Ｂ方向へ流れる様になつている。こ
の油圧モータ−３と舶用切換弁２との間に並列的
に安全弁４を設け、該安全弁４にはストツプ弁５
を介し外部安全弁６が直列的に連結されている。
このストツプ弁５はその操作で安全弁４と外部安
全弁６との連結をON，OFFさせ得る様な弁であ
ればどの様な物でもよく通常は電磁弁を用いる。
図中７は油圧回路内に於ける洩油補給の為の逆止
弁、８は油圧モータ−内の油圧を調整する為のカ
ウンターバランス弁である。 The drawing shows a hydraulic circuit diagram used in the method of the invention,
1 in the figure is a hydraulic pump, and the oil pumped from the hydraulic pump 1 passes through a marine switching valve 2, and when the drum is rotated in the direction of delivering the towing line, it flows in the direction of arrow A in the figure, and the oil is transferred to the hydraulic motor. -3, and when winding up the towing line, it flows in the direction of arrow B in the figure. A safety valve 4 is provided in parallel between the hydraulic motor 3 and the marine switching valve 2, and the safety valve 4 has a stop valve 5.
An external safety valve 6 is connected in series through.
This stop valve 5 may be any type of valve that can be operated to turn on and off the connection between the safety valve 4 and the external safety valve 6, and usually a solenoid valve is used.
In the figure, 7 is a check valve for replenishing leaked oil in the hydraulic circuit, and 8 is a counterbalance valve for adjusting the oil pressure in the hydraulic motor.
この様な油圧回路に於いて、例えば安全弁４の
高圧側設定値を30Kg／cm2、又低圧側設定値を30
Kg／cm2と設定し、外部安全弁６の設定値を30Kg／
cm2に設定し、トーイングラインの巻上げ時はスト
ツプ弁５により外部安全弁６を安全弁４と遮断状
態にして、油圧ポンプ１を駆動させ、回路中油を
矢印Ｂ方向へ流し巻上げ操業を行なう。この巻上
げ操業時にはドラムの回転によつてトーイングラ
インに生じる張力以上の大きな力が油圧モータ−
３にかかる事はないので、この方向への安全弁は
必要とされない。次いでトーイングラインを伸長
する場合には、ストツプ弁５を操作し安全弁４と
外部安全弁６とを接続状態にし、油圧モーター３
とドラムとの間のクラツチは入れた状態で油圧ポ
ンプ１は停止してタグボートを後進即ちタグボー
トと大型船とが離れる方向に走行させる。この様
にすればタグボートが後進するにつれ、トーイン
グラインには張力が働き、その調力はドラムから
油圧モータ−３へ伝わるが、油圧モータ−３にか
かる油圧が30Kg／cm2以下の場合には油圧回路内の
油の流れはないので、油圧モータ−３は作動出来
ず、ドラムの回転は無いのでトーイングラインは
操出されない。タグボートがより後進しトーイン
グラインの張力が増し、上記外部安全弁６の設定
値である30Kg／cm2を超える圧力に相当する張力に
なれば、外部安全弁６が作動し、それに伴なつて
安全弁４も低圧側設定値である30Kg／cm2で作動す
るので油圧モータ−３と安全弁４とを結ぶ閉回路
内を油が流れ油圧モータ−３は作動しドラムが回
動してトーイングラインが伸長される。 In such a hydraulic circuit, for example, the high pressure side setting value of the safety valve 4 is 30 kg/cm 2 and the low pressure side setting value is 30 kg/cm 2 .
Kg/cm 2 , and set the external safety valve 6 to 30Kg/cm2.
cm 2 , and when hoisting the towing line, the stop valve 5 isolates the external safety valve 6 from the safety valve 4, drives the hydraulic pump 1, and flows the oil in the circuit in the direction of arrow B to perform the hoisting operation. During this hoisting operation, a force greater than the tension generated on the towing line due to the rotation of the drum is applied to the hydraulic motor.
3, so a safety valve in this direction is not required. Next, when extending the towing line, the stop valve 5 is operated to connect the safety valve 4 and the external safety valve 6, and the hydraulic motor 3 is
The hydraulic pump 1 is stopped with the clutch between the pump and the drum being engaged, and the tugboat is moved astern, that is, in the direction in which the tugboat and the large ship are separated. In this way, as the tugboat moves backwards, tension will be applied to the towing line, and the tension will be transmitted from the drum to the hydraulic motor 3, but if the hydraulic pressure applied to the hydraulic motor 3 is less than 30 kg/cm 2 Since there is no oil flow in the hydraulic circuit, the hydraulic motor 3 cannot operate, and the drum does not rotate, so the towing line is not steered. When the tug moves further astern and the tension on the towing line increases, and the tension reaches a pressure that exceeds the set value of the external safety valve 6, 30Kg/cm 2 , the external safety valve 6 operates, and the safety valve 4 also operates. Since it operates at the low pressure side set value of 30Kg/ cm2 , oil flows in the closed circuit connecting the hydraulic motor 3 and the safety valve 4, the hydraulic motor 3 operates, the drum rotates, and the towing line is extended. .
この様にしてタグボートを後進させ続ければ、
その分だけトーイングラインは伸長され、タグボ
ートを止めるあるいは低速とすればトーイングラ
インにかかる張力がゼロあるいは小さくなり油圧
モータ−３が作動しなくなるのでその時点でトー
イングラインの操出しは停止する。こうして必要
な長さにトーイングラインを伸長させた後は、再
びストツプ弁５により外部安全弁６を切り離し、
タグボートを操船して大型船を所定の位置へ移動
させるが、この場合には大型船からトーイングラ
インを介し必要以上の引張力を受ける事もあり、
その様な場合に安全弁４は高圧側の設定値である
200Kg／cm2で作動し油圧係統の安全性を期す様に
なつている。 If you continue to move the tugboat astern in this way,
The towing line is extended by that amount, and if the tugboat is stopped or slowed down, the tension applied to the towing line becomes zero or becomes small, and the hydraulic motor 3 ceases to operate, so the towing line stops moving at that point. After extending the towing line to the required length in this way, the external safety valve 6 is disconnected again using the stop valve 5.
A tugboat is maneuvered to move a large ship to a designated location, but in this case, the tugboat may receive more pulling force than necessary from the large ship via the towing line.
In such a case, safety valve 4 is set on the high pressure side.
It operates at 200Kg/cm 2 and is designed to ensure the safety of the hydraulic system.
〈発明の効果〉
以上述べて来た如く、本発明方法によればリモ
ートコントロールが可能な外部安全弁の設定圧力
を適宜選択的に設定しておけば、トーイングライ
ンの伸長作業に際してはストツプ弁を操作するだ
けで、煩雑なクラツチの切換えをなす事なくタグ
ボートを後進させる事により該タグボートの後進
速度と同じ速さでトーイングラインの伸長が行な
え、その速さは上述の方法による場合に比べる
と３倍以上の効率である。又タグボートを停止さ
せればそれと共に油圧モータ−による抵抗が働き
トーイングラインの操出しは即座に停止されるの
で必要以上にラインが操出されるという事はな
い。<Effects of the Invention> As described above, according to the method of the present invention, if the setting pressure of the external safety valve that can be remotely controlled is selectively set as appropriate, the stop valve can be operated when the towing line is extended. By simply doing this, the tug can be moved astern without complicated clutch switching, and the towing line can be extended at the same speed as the tug's astern speed, which is more than three times as fast as the method described above. efficiency. Furthermore, when the tugboat is stopped, the hydraulic motor acts as a resistance and the towing line is immediately stopped, so the line is not moved out more than necessary.
従つてクラツチ操作の必要はなく、又タグボー
トの後進速度に対する規制もなく全体的に簡単な
操作で、迅速にラインの伸長が出来るものであ
る。 Therefore, there is no need to operate the clutch, and there is no restriction on the asterning speed of the tugboat, making it possible to quickly extend the line with an overall simple operation.
図面は本発明方法で用いる油圧回路の説明図。
図中、１：油圧ポンプ、２：舶用切換弁、３：
油圧モータ−、４：安全弁、５：ストツプ弁、
６：外部安全弁。
The drawing is an explanatory diagram of a hydraulic circuit used in the method of the present invention. In the diagram, 1: hydraulic pump, 2: marine switching valve, 3:
Hydraulic motor, 4: safety valve, 5: stop valve,
6: External safety valve.
Claims (1)
ドラムに連結された油圧モーターと、舶用切換弁
との間にバランスピストン型安全弁を組み込み、
同安全弁の作動圧を高圧及び低圧の２種に設定
し、かつ上記安全弁に対しストツプ弁を介し断，
続可能に外部安全弁を連結し、該外部安全弁の作
動圧を上記安全弁の低圧に一致せしめ、外部安全
弁が作動状態となつた時のみ上記安全弁は低圧の
設定圧で作動し、それ以外の時は高圧の設定圧で
作動する構成となし、タグボートからトーイング
ラインを伸長するに際し、ドラムのクラツチは嵌
合状態となし、上記ストツプ弁を続となし安全弁
と外部安全弁とを連結状態となしてタグボートを
トーイングラインが伸長する方向へ走行せしめる
ことを特徴とするトーイングウインチの制御方
法。1. A balance piston type safety valve is installed between the hydraulic motor connected to the drum of the towing winch mounted on the tugboat and the marine switching valve.
The operating pressure of the safety valve is set to two types, high pressure and low pressure, and the safety valve is disconnected via a stop valve.
The operating pressure of the external safety valve is made to match the low pressure of the above-mentioned safety valve, and the above-mentioned safety valve operates at the low set pressure only when the external safety valve is in the operating state, and at other times. It is configured to operate at a high set pressure, and when extending the towing line from the tugboat, the drum clutch is engaged, the stop valve is connected, the safety valve is connected to the external safety valve, and the tugboat is moved. A towing winch control method characterized by causing the towing line to run in a direction in which it extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4511786A JPS62201795A (en) | 1986-03-01 | 1986-03-01 | Method of controlling towing winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4511786A JPS62201795A (en) | 1986-03-01 | 1986-03-01 | Method of controlling towing winch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62201795A JPS62201795A (en) | 1987-09-05 |
| JPH022798B2 true JPH022798B2 (en) | 1990-01-19 |
Family
ID=12710323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4511786A Granted JPS62201795A (en) | 1986-03-01 | 1986-03-01 | Method of controlling towing winch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62201795A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5149064B2 (en) * | 2008-04-30 | 2013-02-20 | オーエスシステム株式会社 | Tugboat rope winch |
-
1986
- 1986-03-01 JP JP4511786A patent/JPS62201795A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62201795A (en) | 1987-09-05 |
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