JPS5839996Y2 - Steering gear hydraulic circuit - Google Patents
Steering gear hydraulic circuitInfo
- Publication number
- JPS5839996Y2 JPS5839996Y2 JP5449376U JP5449376U JPS5839996Y2 JP S5839996 Y2 JPS5839996 Y2 JP S5839996Y2 JP 5449376 U JP5449376 U JP 5449376U JP 5449376 U JP5449376 U JP 5449376U JP S5839996 Y2 JPS5839996 Y2 JP S5839996Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- hydraulic
- valve
- safety valve
- hydraulic pump
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
Description
【考案の詳細な説明】
本考案は船舶などの舵を駆動する舵取機の油圧回路の改
良に関する。[Detailed Description of the Invention] The present invention relates to an improvement of a hydraulic circuit for a steering gear that drives the rudder of a ship or the like.
従来船舶の舵取機の油圧回路は、舵に連結され舵を駆動
する油圧シリンダ、これに圧力油を供給する油圧ポンプ
を備え、止め弁、安全弁等を介装させた構成となってい
る。Conventionally, a hydraulic circuit for a steering gear of a ship includes a hydraulic cylinder connected to a rudder to drive the rudder, a hydraulic pump that supplies pressure oil to the hydraulic cylinder, and a stop valve, a safety valve, etc., interposed therein.
止め弁は油圧ポンプが故障したときに油圧ポンプを油圧
回路から絶縁するため油圧ポンプの前後に配置されるも
のであるが、止め弁を閉じた状態で油圧ポンプが誤って
運転された場合、油圧ポンプから吐出された油の流れが
妨げられるため、油圧が過大に上昇し油圧ポンプを破損
する危険があり、また安全弁が面舵回路用と取舵回路用
とに２個装備しているため、それぞれの安全弁を調整し
、その調整圧力を同じ値にしなければならないという面
倒な作業を要する。Stop valves are placed before and after the hydraulic pump in order to isolate the hydraulic pump from the hydraulic circuit in the event of a hydraulic pump malfunction. However, if the hydraulic pump is accidentally operated with the stop valve closed, the hydraulic Since the flow of oil discharged from the pump is obstructed, there is a risk that the oil pressure will rise excessively and damage the hydraulic pump.Also, since there are two safety valves, one for the surface rudder circuit and one for the steering circuit, each The troublesome work of adjusting the safety valve and adjusting the pressure to the same value is required.
本考案はこのような欠点を解消する目的で提案されたも
ので、舵に連結され舵を駆動する油圧シリンダと、該油
圧シリンダに圧力油を供給すべく並列配置された複数個
の油圧ポンプとを止め弁を介して連通させ、かつ安全弁
を備えた舵取機の油圧回路において、上記各油圧ポンプ
に連通した各回路を止め弁を介して油圧シリンダに連通
ずる止め弁回路と、上記止め弁と油圧ポンプとの間から
分出し逆止弁を介して安全弁に連通ずる安全弁回路とに
分岐させてなり、上記各安全弁回路は各逆止弁を経由し
合流した後安全弁に連通すべく形成されるとともに各安
全弁回路における各逆止弁が圧力油が他の油圧ポンプに
流入するのを防ぐ向きに介装されたことを特徴とする舵
取機の油圧回路を提供する。The present invention was proposed for the purpose of eliminating such drawbacks, and consists of a hydraulic cylinder connected to the rudder to drive the rudder, and a plurality of hydraulic pumps arranged in parallel to supply pressure oil to the hydraulic cylinders. In the hydraulic circuit of the steering gear, which communicates with each other via a stop valve and is equipped with a safety valve, a stop valve circuit that communicates each circuit that communicates with each of the hydraulic pumps with a hydraulic cylinder via a stop valve, and a stop valve circuit that communicates with the hydraulic cylinder via a stop valve; and a safety valve circuit which is connected to the safety valve via a separate check valve from between the hydraulic pump and the hydraulic pump, and each of the safety valve circuits is formed to connect to the safety valve after merging through each check valve. To provide a hydraulic circuit for a steering gear, in which each check valve in each safety valve circuit is interposed in a direction that prevents pressure oil from flowing into other hydraulic pumps.
本考案の油圧回路においては、油圧ポンプが故障してそ
の油圧ポンプを絶縁するため止め弁を閉じた状態で誤っ
て油圧ポンプを運転してしまった場合でも、各油圧ポン
プに連通した各回路を止め弁を介して油圧シリンダに連
通ずる止め弁回路と逆止弁を介して安全弁に連通ずる安
全弁回路とに分岐させたことにより、油が安全弁回路に
流入するため、油圧が過大に上昇して油圧ポンプを破損
する危険性がない。In the hydraulic circuit of the present invention, even if a hydraulic pump malfunctions and the hydraulic pump is accidentally operated with the stop valve closed to insulate the hydraulic pump, each circuit connected to each hydraulic pump can be maintained. By branching into a check valve circuit that communicates with the hydraulic cylinder via a stop valve and a safety valve circuit that communicates with the safety valve via a check valve, oil flows into the safety valve circuit, which prevents oil pressure from rising excessively. There is no risk of damaging the hydraulic pump.
また各安全弁回路における逆止弁を圧力油が他の油圧ポ
ンプに流入するのを防ぐ向きに介装させたことにより、
止め弁による油圧ポンプの絶縁機能を低下させることが
ない。In addition, by installing the check valve in each safety valve circuit in a direction that prevents pressure oil from flowing into other hydraulic pumps,
The insulation function of the hydraulic pump due to the stop valve does not deteriorate.
捷た、安全弁回路を他の安全弁回路と合流させた後安全
弁に連通させたことにより、１個の安全弁で面舵回路と
取舵回路の過圧防止機能を兼務できる。By merging the disconnected safety valve circuit with another safety valve circuit and then communicating with the safety valve, one safety valve can serve both the overpressure prevention function of the surface rudder circuit and the steering circuit.
従って安全弁の使用個数が減少され、部品代が低減され
、安全弁調整作業が減少するとともに、部品の減少によ
り信頼性が増大する。Therefore, the number of safety valves used is reduced, the cost of parts is reduced, the safety valve adjustment work is reduced, and reliability is increased due to the reduction in parts.
次に本考案の油圧回路の一実施例を図面に基づいて説明
する。Next, an embodiment of the hydraulic circuit of the present invention will be described based on the drawings.
まず比較のため従来の舵取機の油圧回路を第１図に基づ
いて説明する。First, for comparison, the hydraulic circuit of a conventional steering gear will be explained based on FIG.
図中１は油圧シリンダで図示しない舵に連結され舵を駆
動する。In the figure, 1 is a hydraulic cylinder connected to a rudder (not shown) and drives the rudder.
２−ａ。２−ｂは油圧ポンプで油圧シリンダ１に圧力油
を供給し油圧シリンダ１のピストンを動かす。2-a. 2-b is a hydraulic pump that supplies pressure oil to the hydraulic cylinder 1 and moves the piston of the hydraulic cylinder 1.
３−ａ、３−ｂは油圧ポンプ２−ａ、２−ｂの駆動用電
動機である。3-a and 3-b are electric motors for driving the hydraulic pumps 2-a and 2-b.
４−ａ、４−ｂは止め弁で通常は開にして油圧ポンプ２
−ａ、２−ｂが使用できる状態にしておく。4-a and 4-b are stop valves that are normally open and the hydraulic pump 2
-a and 2-b are ready for use.
もし一方の油圧ポンプが故障して回路から絶縁しなけれ
ばならない場合、その前後の止め弁２個を閉じて絶縁す
る。If one hydraulic pump fails and must be isolated from the circuit, close the two stop valves before and after it to isolate it.
例えば油圧ポンプ２ａを絶縁する場合、２個の止め弁４
−ａを閉じ、油圧ポンプ２−ｂの場合は止め弁４−ｂを
閉じる。For example, when insulating the hydraulic pump 2a, two stop valves 4
-a, and in the case of the hydraulic pump 2-b, close the stop valve 4-b.
５−ａ、５−ｂは安全弁で油圧回路が規定圧力以上にな
るのを防ぐ。5-a and 5-b are safety valves that prevent the hydraulic circuit from exceeding a specified pressure.
５−ａは取舵回路用、５−ｂは面舵回路用である。5-a is for the steering circuit, and 5-b is for the surface rudder circuit.
６はバイパス弁、７−ａ 、 ７ ｂ 、 ８−ａ
、 ８−ｂは油圧配管で７−ａ、７−ｂは取舵回路用、
８−ａ、８ｂは面舵回路用である。6 is a bypass valve, 7-a, 7b, 8-a
, 8-b is the hydraulic piping, 7-a and 7-b are for the steering circuit,
8-a and 8b are for surface rudder circuits.
このような油圧回路においては操作ミスにより止め弁４
− ａ、又Ｉ／１４−ｂが閉の状態で油圧ポンプ２−ａ
又は２−ｂが運転された場合、油圧ポンプ２ ａ％ｊ
又は２−ｂから吐出された油は閉じた止め弁４−ａ１又
Ｉ／′１４−ｂによって流れがさまたげられるため油圧
が過大に上昇し油圧ポンプ２−ａ、２−ｂを破損する。In such a hydraulic circuit, the stop valve 4 may be damaged due to an operational error.
- Hydraulic pump 2-a with I/14-b closed
Or when 2-b is operated, hydraulic pump 2 a%j
Alternatively, the flow of the oil discharged from 2-b is blocked by the closed stop valve 4-a1 or I/'14-b, so that the oil pressure increases excessively and damages the hydraulic pumps 2-a and 2-b.
また安全弁が取舵回路用５−ａと面舵回路用５−ｂとに
分けて使用されているため、それぞれの安全弁について
調整を行い、その調整圧力を同じ値にしなければならな
い。Furthermore, since the safety valves are used separately for the steering circuit 5-a and the surface rudder circuit 5-b, it is necessary to adjust each safety valve so that the adjusted pressure thereof is the same value.
次に本考案の油圧回路の一実施例を第２図に基づいて説
明する。Next, an embodiment of the hydraulic circuit of the present invention will be described based on FIG. 2.
図中油圧シリンダ１、油圧ポンプ２−ａ、２−ｂ、電動
機３−ａ、３−ｂ、止め弁４−ａ、４−ｂ、バイパス弁
６．油圧配管における取舵ライン用７−ａ、７−ｂ、面
舵ライン用８− ａ 、 −８−ｂは第１図と同ＩＪ能
をもつもので、安全弁５も第１図の安全弁５−ａ又は５
−ｂと同じ機能をもつものである。In the figure, a hydraulic cylinder 1, hydraulic pumps 2-a, 2-b, electric motors 3-a, 3-b, stop valves 4-a, 4-b, bypass valve 6. In the hydraulic piping, the steering line 7-a, 7-b and the surface rudder line 8-a, -8-b have the same IJ function as in Fig. 1, and the safety valve 5 is also the safety valve 5-a or 8-b in Fig. 1. 5
-b has the same function.
９−ａ、９−ｂｉｄ逆止弁で９− ａは油圧ポンプ２−
ｂ側より油圧ポンプ２−ａに油が流入するのを防ぎ、９
−ｂは油圧ポンプ２− ａ側より油圧ポンプ２−ｂに油
が流入するのを防ぐ向きに配置されている。9-a, 9-bid check valve, 9-a is hydraulic pump 2-
Prevent oil from flowing into the hydraulic pump 2-a from the b side, and
-b is arranged to prevent oil from flowing into the hydraulic pump 2-b from the hydraulic pump 2-a side.
１０は油タンクである。油圧ポンプ２−ａ、又は２−ｂ
から出た取舵回路γ−ａ、７−す及び面舵回路８−ａ、
８−ｂは途中で分岐され、一方止め弁回路１１は止め弁
４− ａ又は４−ｂを介して油圧シリンダー１に接続し
、他方安全弁回路１２は逆止弁９− ａ又は９−ｂを介
して安全弁５に接続している。10 is an oil tank. Hydraulic pump 2-a or 2-b
Steering circuit γ-a, 7-seat and surface rudder circuit 8-a,
8-b is branched in the middle, one side check valve circuit 11 is connected to the hydraulic cylinder 1 via the stop valve 4-a or 4-b, and the other safety valve circuit 12 is connected to the check valve 9-a or 9-b. The safety valve 5 is connected to the safety valve 5 through the safety valve 5.
このような油圧回路にかいて油圧ポンプ２−ａ。A hydraulic pump 2-a is used in such a hydraulic circuit.
２−ｂより取舵回路７−ａ、７−ｂ、面舵回路８−ａ、
８−ｂを経て舵駆動用油圧シリンダ１に圧力油を供給す
るのであるが、油圧ポンプ２− ａからの油は逆止弁９
− ａを通して安全弁５に流れるが、逆止弁９−ｂによ
り、油圧ポンプ２−ｂ側には流れない。From 2-b, steering circuits 7-a, 7-b, surface rudder circuit 8-a,
Pressure oil is supplied to the rudder drive hydraulic cylinder 1 through the hydraulic pump 2-a, and the oil from the hydraulic pump 2-a is supplied to the check valve 9.
- It flows to the safety valve 5 through a, but does not flow to the hydraulic pump 2-b side due to the check valve 9-b.
筐た油圧ポンプ２−ｂからの油は、逆止弁９−ｂを通し
て安全弁５に流れるが、逆止弁９− ａにより油圧ポン
プ２− ａ側には流れない。Oil from the enclosed hydraulic pump 2-b flows to the safety valve 5 through the check valve 9-b, but does not flow to the hydraulic pump 2-a side due to the check valve 9-a.
即ち、油圧ポンプ２−ａ、２−ｂはそれぞれ安全弁には
通じているが、逆止弁９−ａ、９−ｂによって互いに絶
縁状態になっている。That is, although the hydraulic pumps 2-a and 2-b each communicate with the safety valve, they are insulated from each other by the check valves 9-a and 9-b.
筐た取舵回路７−ａ、７−ｂ及び面舵回路８−ａ、８−
ｂを逆止弁９−ａ、９−ｂで囲まれた内側において合流
させた後、安全弁５に連通させている。Encased steering circuits 7-a, 7-b and surface rudder circuits 8-a, 8-
b are merged inside the check valves 9-a and 9-b, and then communicated with the safety valve 5.
従って、油圧ポンプ２−ａは止め弁４−ａを閉にするこ
とにより回路から絶縁され、修理などのため油圧ポンプ
２− ａを配管７−ａ、８−ａより取りはずしても、油
圧ポンプ２−ｂ側の油は逆止弁９−ａにより外部に流出
しない。Therefore, the hydraulic pump 2-a is insulated from the circuit by closing the stop valve 4-a, and even if the hydraulic pump 2-a is removed from the piping 7-a, 8-a for repairs etc., the hydraulic pump 2-a is isolated from the circuit. The oil on the -b side is prevented from flowing out to the outside by the check valve 9-a.
従って油圧ポンプ２−ａの状態に関係なく油圧ポンプ２
−ｂを運転して舵を駆動することができる。Therefore, regardless of the state of the hydraulic pump 2-a, the hydraulic pump 2-a
-b can be driven to drive the rudder.
同様に油圧ポンプ２−ｂは止め弁４−ｂを閉にすること
により、回路から絶縁され、油圧ポンプ２−ａを使用し
て運転を続けることができる。Similarly, the hydraulic pump 2-b is isolated from the circuit by closing the stop valve 4-b, and can continue to operate using the hydraulic pump 2-a.
また前記のような分岐配管により、止め弁４−ａ又は４
−ｂを閉じた状態で誤って油圧ポンプ２−ａ又は２−ｂ
を運転してしまった場合でも油圧ポンプ２−ａ又は２−
ｂから吐出された油が安全弁５に流入するため、油圧が
過大に上昇して油圧ポンプ２ ａ、２−ｂを破損する
危険性がない。In addition, the branch piping described above allows the stop valve 4-a or 4-a to
Hydraulic pump 2-a or 2-b accidentally
Even if the hydraulic pump 2-a or 2-
Since the oil discharged from b flows into the safety valve 5, there is no risk of the oil pressure rising excessively and damaging the hydraulic pumps 2a and 2-b.
オた取舵回路７−ａ、７−ｂ及び面舵回路８−ａ、８−
ｂを逆止弁９−ａ、９−ｂで囲まれた内側において合流
させた後安全弁５に連通させているため、安全弁が１個
で済み、取舵ライン７−ａ。Ota steering circuits 7-a, 7-b and surface rudder circuits 8-a, 8-
b are merged inside surrounded by the check valves 9-a and 9-b and then communicated with the safety valve 5, so only one safety valve is required, and the steering line 7-a.
７−ｂと面舵ライン８−ａ、８ｂの過圧防止機能を兼務
でき、部品代が低減され、安全弁調整作業が減少すると
ともに、部品の減少により信頼性が増大する。7-b and the surface rudder lines 8-a and 8b can also serve as an overpressure prevention function, the cost of parts is reduced, safety valve adjustment work is reduced, and reliability is increased due to the reduction in the number of parts.
なお本考案の油圧回路の適用範囲は船舶などの舵取機に
限定されるものではなく、本考案によって奏せられる効
果が得られるすべての対象に適用可能である。Note that the scope of application of the hydraulic circuit of the present invention is not limited to steering gears of ships and the like, but is applicable to all objects where the effects of the present invention can be obtained.
第１図は従来の舵取機の油圧回路を示す説明図、第２図
は本考案の舵取機の油圧回路の一実施例を示す説明図で
ある。
１・・・・・・油圧シリンダ、２−ａ、２−ｂ・・・・
・・油圧ポンプ、３−ａ、３ｂ＝電動機、４−ａ、４＝
ｂ・・・・・・止め弁、５，５−ａ、５−ｂ・・・・・
・安全弁、６・・・・・・バイパス弁、７−ａ、７−ｂ
・・・・・・取舵回路、８− ａ 、 ８− ｂ ＝面
舵回路、９−ａ、９−ｂ”・・・・逆止弁、１１・・・
・・・止め弁回路、１２・・・・・・安全弁回路。FIG. 1 is an explanatory diagram showing a hydraulic circuit of a conventional steering gear, and FIG. 2 is an explanatory diagram showing an embodiment of the hydraulic circuit of a steering gear of the present invention. 1...Hydraulic cylinder, 2-a, 2-b...
...Hydraulic pump, 3-a, 3b=electric motor, 4-a, 4=
b... Stop valve, 5, 5-a, 5-b...
・Safety valve, 6...Bypass valve, 7-a, 7-b
...Steering circuit, 8-a, 8-b = surface rudder circuit, 9-a, 9-b''...Check valve, 11...
...Stop valve circuit, 12...Safety valve circuit.
Claims (1)
ンダに圧力油を供給すべく並列配置された複数個の油圧
ポンプとを止め弁を介して連通させ、かつ安全弁を備え
た舵取機の油圧回路において、上記各油圧ポンプに連通
した各回路を止め弁を介して油圧シリンダに連通ずる止
め弁回路と、上記止め弁と油圧ポンプとの間から分出し
逆止弁を介して安全弁に連通ずる安全弁回路とに分岐さ
せてなり、上記各安全弁回路は各逆止弁を経由し合流し
た後安全弁に連通すべく形成されるとともに各安全弁回
路における各逆止弁が圧力油が他の油圧ポンプに流入す
るのを防ぐ向きに介装されたことを特徴とする舵取機の
油圧回路。A steering gear which communicates a hydraulic cylinder connected to a rudder and drives the rudder with a plurality of hydraulic pumps arranged in parallel to supply pressure oil to the hydraulic cylinders via a stop valve, and is equipped with a safety valve. In the hydraulic circuit, each circuit connected to each of the hydraulic pumps is connected to a hydraulic cylinder via a stop valve, and a stop valve circuit is connected to a safety valve via a check valve distributed between the stop valve and the hydraulic pump. Each of the safety valve circuits is formed to connect to the safety valve after merging via each check valve, and each check valve in each safety valve circuit is connected to a safety valve circuit in which the pressure oil is connected to another hydraulic pump. A hydraulic circuit for a steering gear, characterized in that the hydraulic circuit is installed in a direction that prevents water from flowing into the steering gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5449376U JPS5839996Y2 (en) | 1976-04-30 | 1976-04-30 | Steering gear hydraulic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5449376U JPS5839996Y2 (en) | 1976-04-30 | 1976-04-30 | Steering gear hydraulic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52146498U JPS52146498U (en) | 1977-11-07 |
| JPS5839996Y2 true JPS5839996Y2 (en) | 1983-09-08 |
Family
ID=28513508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5449376U Expired JPS5839996Y2 (en) | 1976-04-30 | 1976-04-30 | Steering gear hydraulic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839996Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259719A (en) * | 1985-05-15 | 1986-11-18 | Matsushita Electric Works Ltd | Filter for oil purifier |
-
1976
- 1976-04-30 JP JP5449376U patent/JPS5839996Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259719A (en) * | 1985-05-15 | 1986-11-18 | Matsushita Electric Works Ltd | Filter for oil purifier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52146498U (en) | 1977-11-07 |
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