JPH044375A - Complex control valve - Google Patents

Complex control valve

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Publication number
JPH044375A
JPH044375A JP10292390A JP10292390A JPH044375A JP H044375 A JPH044375 A JP H044375A JP 10292390 A JP10292390 A JP 10292390A JP 10292390 A JP10292390 A JP 10292390A JP H044375 A JPH044375 A JP H044375A
Authority
JP
Japan
Prior art keywords
unit
control valve
spools
spool
unit control
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.)
Granted
Application number
JP10292390A
Other languages
Japanese (ja)
Other versions
JP2804153B2 (en
Inventor
Chiharu Matsunaga
松永 千春
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP10292390A priority Critical patent/JP2804153B2/en
Publication of JPH044375A publication Critical patent/JPH044375A/en
Application granted granted Critical
Publication of JP2804153B2 publication Critical patent/JP2804153B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Sliding Valves (AREA)

Abstract

PURPOSE:To miniaturize the whole body of the above control valve and reduce the cost by lining up and housing plural spools in a unit block to form a unit control valve, and linking plural unit control valves in the directions of spool axial lines, to compose a complex control valve. CONSTITUTION:A complex control valve consists of plural unit control valves V1, V2, and V3, and a pump unit PU, a connection unit CU, a pump-tankport unit PTU are placed between the unit valves, being connected with bolts 30. The unit control valve V3 is composed of spools 14 provided in plural holes 12, and each spool 14 is moved either upward or downward by the pilot pressure operated from pilot ports PIL, to feed a pressure oil to an actuator. The unit control valves V1 to V3 with such a composition house spools 14 respectively, and they are linked in the axial direction of the spools 14. Consequently, the whole body of th control valve is miniaturized and the cost can advantageously be reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、小流量用の複合制御弁に係り、殊にこのよう
な複合制御弁のコンパクト化ならびにコスト低減、特に
鋳物製作の容易化に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a composite control valve for small flow rates, and particularly relates to making such a composite control valve more compact and cost-reducing, and particularly to facilitating the production of castings. .

〔従来の技術〕[Conventional technology]

この種の複合制御弁は、流量が小さいことからスプール
径が細くなり、一体形に構成すると鋳物製作が極めて複
雑かつ困難となる。
Since this type of composite control valve has a small flow rate, the spool diameter is small, and if it is constructed in one piece, the casting process becomes extremely complicated and difficult.

このため、この種の複合制御弁に対しては、各スプール
毎の単位ユニットを積み重ねた、いわゆるスタックタイ
プ複合制御弁が一般に使用されている。
Therefore, for this type of composite control valve, a so-called stack type composite control valve in which units for each spool are stacked is generally used.

すなわち、第6図および第7図において、複合制御弁は
、複数の(この場合は8本)スプール81〜s8がそれ
ぞれ単位として構成された各スプールユニットSUI〜
sU8を、ポンプ・タンクボートユニットPTUとポン
プユニットPUO間に接続ユニットCUを介在させて積
み重ね状に連結して構成されている。このような構成に
よれば、各ユニットは単体的に形成されるので、鋳物製
作が簡単かつ容易となり、したがって製作上の困難性が
解決されるからである。なお、図中、参照符号PL、P
2.T、CYLは、それぞれ第1、第2ポンプボート;
タンクポートおよびシリンダポートを示す。
That is, in FIG. 6 and FIG. 7, the composite control valve has a plurality of spool units SUI to s8 each configured as a unit of a plurality of (eight in this case) spools 81 to s8.
The sU8 are connected in a stacked manner with a connection unit CU interposed between the pump/tank boat unit PTU and the pump unit PUO. According to such a configuration, since each unit is formed singly, manufacturing of the casting becomes simple and easy, and therefore difficulties in manufacturing can be solved. In addition, in the figure, reference symbols PL, P
2. T and CYL are the first and second pump boats, respectively;
Tank and cylinder ports are shown.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかしながら、前述のスタックタイプ複合制御弁には、
次に述べるような問題点があった。
However, the stack type composite control valve mentioned above has
There were problems as described below.

すなわち、多数のスプールユニットから構成されている
ことから、複合制御弁全体の形状、特にその長手方向寸
法りが長大となり、このため殊に近来多用されている小
形延機において、複合制御弁の搭載スペースに問題が提
起されるに至っている。しかも、この問題は、各スプー
ルユニットにオーバーロードリリーフポートが要求され
る場合には、このポートの設置位置はシリンダポートC
YLが設けられる図示上向きの一側面に限定されるので
、油圧配管上の繁雑さをさらにもたらし、前記問題を一
層増大する結果となっていた。
In other words, since it is composed of a large number of spool units, the shape of the composite control valve as a whole, especially its longitudinal dimension, becomes long. Therefore, it is difficult to install a composite control valve, especially in small rolling mills that are frequently used these days. Space has come to be questioned. Moreover, if each spool unit is required to have an overload relief port, the installation position of this port is the cylinder port C.
Since the YL is limited to one side facing upward in the figure, the hydraulic piping is further complicated and the above problem is further exacerbated.

そこで、本発明の目的は、特に鋳物製作上の困難性を伴
うことなく、小形コンパクトに構成することができる小
流量用複合制御弁を提供することにある。
SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a small flow rate composite control valve that can be constructed in a small and compact manner without any particular difficulty in producing a casting.

〔課題を解決するための手段〕[Means to solve the problem]

先の目的を達成するために、本発明に係る複合制御弁は
、単位ブロック内に複数のスプールを整列収納して単位
制御弁を構成し、この単位制御弁を各スプール軸線の延
長方向に複数連結することを特徴とする。
In order to achieve the above object, the composite control valve according to the present invention comprises a unit control valve by arranging and storing a plurality of spools in a unit block, and a plurality of unit control valves are arranged in the direction of extension of each spool axis. It is characterized by being connected.

この場合、各単位制御弁は、共通の締結手段を介して連
結すると共にそれぞれのタンク通路を連通ずるよう構成
すると好適である。
In this case, it is preferable that the unit control valves are connected via a common fastening means and configured to communicate with each other through their respective tank passages.

また、鋳物製作ならびに延機内への設置の面から、単位
ブロックは方形ブロックに形成し、その中央部に共通の
油通路用円筒状部材を設けると共にこの円筒状部材の周
囲に4本のスプールを放射状に配設し、さらに方形ブロ
ックの対向するそれぞれの2面に4木のスプール用のそ
れぞれのシリンダポートならびにオーバーロードリリー
フポートを設けると好適である。          
  1〔作用〕 複数のスプールが1つの単位制御弁の中に収納されるの
で、複合制御弁全体の形状が、従来のものに比較して、
小形コンパクト化される。しかも、各スプールのそれぞ
れのシリンダポートならびにオーバーロードリリーフポ
ートは単位ブロックの4面(方形ブロックの場合)に分
散して設けられるので、油圧配管が容易となる。さらに
、単位ブロックは、スプールならびに円筒状部材用の穴
が並列に設けられていると共にかつ後者の穴は鋳抜き穴
に形成されるので、鋳物製作が容易化される。また、こ
のブロックは、前記穴に平行な方向に締付は連結される
ので、締付けによる前記穴に対する変形影響が無視され
る程度に軽減される。
In addition, from the viewpoint of casting production and installation in the rolling mill, the unit block is formed into a rectangular block, with a cylindrical member for a common oil passage in the center and four spools around this cylindrical member. Preferably, they are arranged radially, and furthermore, respective cylinder ports and overload relief ports for the four spools are provided on each of the two opposing sides of the square block.
1 [Operation] Since multiple spools are housed in one unit control valve, the overall shape of the composite control valve is smaller than that of conventional ones.
It is made smaller and more compact. Moreover, since the cylinder ports and overload relief ports of each spool are distributed and provided on four sides of the unit block (in the case of a square block), hydraulic piping becomes easy. Furthermore, since the unit block is provided with holes for the spool and the cylindrical member in parallel, and the latter hole is formed as a cast hole, manufacturing of the casting is facilitated. Further, since this block is tightened and connected in a direction parallel to the hole, the deformation effect on the hole due to tightening is reduced to the extent that it is ignored.

〔実施例〕〔Example〕

次に、本発明に係る複合制御弁の一実施例につき添付図
面を参照しながら以下詳細に説明する。なお、説明の便
宜上、第6図および第7図に示す従来の構造と同一の構
成部分には同一の参照符号を付し、その詳細な説明を省
略する。
Next, an embodiment of the composite control valve according to the present invention will be described in detail below with reference to the accompanying drawings. For convenience of explanation, the same reference numerals are given to the same components as in the conventional structure shown in FIGS. 6 and 7, and detailed explanation thereof will be omitted.

まず、第1図において、本発明の複合制御弁は、方形ブ
ロック10から構成される3つの単位制御弁Vl、V2
.V3からなり、これらの単位制御弁が、その中のvl
とv2との間にポンプユニットPUを、■2とV3との
間に接続ユニットCUを、■3の開放側端部にポンプ・
タンクポートユニットPTUをそれぞれ介在あるいは介
装され、そしてこれらを連続して貫通するボルト穴28
(第2図参照)内に連結用ボルト30が挿通され、これ
により締付は連結される。ここで、ポンプ−〇 − ・タンクポートユニットPTUは単位制御弁■3に対す
る圧油供給用ポンプポートP3とタンクポートTとを有
し、ポンプユニットPUは単位制御弁■1ならびに■2
に対する圧油供給用ポンプポートP1ならびにP2を有
し、そしてこれら両ユニットPTU、PtJならびに接
続ユニットCUは、後述するが、各単位制御弁Vl、V
2.V3のタンク通路26(第2.3.5図参照)をポ
ンプ・タンクポートユニットPTUの前記タンクポート
Tに連通するように構成されている。
First, in FIG. 1, the composite control valve of the present invention consists of three unit control valves Vl and V2 composed of a rectangular block 10.
.. V3, and these unit control valves are
■Connect the pump unit PU between V2 and V2, ■Connect the connection unit CU between V2 and V3,
Bolt holes 28 are interposed or interposed in the tank port unit PTU and continuously penetrate through them.
A connecting bolt 30 is inserted inside (see FIG. 2), and the connection is thereby tightened. Here, the pump-○- tank port unit PTU has a pump port P3 for supplying pressure oil to the unit control valve ■3 and a tank port T, and the pump unit PU has a tank port T and a pump port P3 for supplying pressure oil to the unit control valve ■1 and ■2.
These units PTU, PtJ and the connection unit CU have pump ports P1 and P2 for supplying pressure oil to the respective unit control valves Vl and V, which will be described later.
2. The tank passage 26 (see Figure 2.3.5) of V3 is configured to communicate with the tank port T of the pump/tank port unit PTU.

単位制御弁は、その1つv3を第2図ないし第5図に拡
大して詳細に示すように、方形ブロック10の中央部に
鋳抜き状に形成される穴16内に設けられる共通の油通
路用円筒状部材18と、前記穴16すなわち円筒状部材
18の周囲に放射状に形成される4つの穴12内に配設
される4つのスプール14とから構成される。各スプー
ル14は、何れかのパイロットポー)PILから作用さ
れるパイロット圧により図において上方もしくは下方へ
移動し、これにより、ポンプ・タンクポートユニットP
TUのポンプポートP3から供給される圧油を、円筒状
部材18内の油通路20もしくは22およびスプール内
油通路24を介して一方のシリンダポートCYLから図
示しないアクチュエータへ供給し、そしてこのアクチュ
エータからの戻り油は他方のシリンダポートCYLから
タンク通路26を介してタンクポートTへ流出する。な
お、上流側の単位制御弁Vl、V2からの戻り油は、そ
れぞれ下流側の単位制御弁V2.V3のタンク通路26
を経由してタンクポートTへ流出する。
As shown in detail in enlarged views of one of the unit control valves v3 in FIGS. It is comprised of a passage cylindrical member 18 and four spools 14 disposed within the hole 16, that is, four holes 12 formed radially around the cylindrical member 18. Each spool 14 is moved upward or downward in the figure by pilot pressure applied from one of the pilot ports (PIL), thereby causing the pump/tank port unit P
Pressure oil supplied from the pump port P3 of the TU is supplied from one cylinder port CYL to an actuator (not shown) via the oil passage 20 or 22 in the cylindrical member 18 and the oil passage 24 in the spool, and from this actuator. The return oil flows out from the other cylinder port CYL to the tank port T via the tank passage 26. Note that the return oil from the upstream unit control valves Vl and V2 is transferred to the downstream unit control valve V2. V3 tank passage 26
It flows out to tank port T via .

このように、本発明の複合制御弁によれば、各単位制御
弁の中にそれぞれ複数の(前記実施例の場合には4本)
スプールが収納されるので、複合制御弁全体の形状が小
形コンパクト化される。しかも、各スプールに対するそ
れぞれのシリンダポートならびにオーバーロ一トリリー
フボートは単位ブロックの4面に分散して設けられるの
で、油圧配管の設置が容易となる。さらに、単位ブロッ
クは、スプールならびに円筒状部材用の穴が並列されて
いると共にかつ後者の穴は鋳抜き状に形成されるので、
容易に鋳物製作される。また、このブロックは、前記穴
に平行な方向に締付は連結されるので、締付けによる前
記穴の変形が回避される。なお、実施例においては、単
位制御弁■3と■2との間に別体の接続ユニットCUを
配設したが、この接続ユニットは単位制御弁V3.V2
の何れか一方に付設的に構成することもできる。また、
各スプール14の操作は、パイロットポート圧油手段に
よらず他の手段を用いてもよい。
As described above, according to the composite control valve of the present invention, each unit control valve has a plurality of valves (four in the case of the above embodiment).
Since the spool is housed, the overall shape of the composite control valve can be made smaller and more compact. Furthermore, since the respective cylinder ports and overload relief boats for each spool are distributed over the four sides of the unit block, installation of hydraulic piping is facilitated. Furthermore, since the unit block has holes for the spool and the cylindrical member arranged in parallel, and the latter hole is formed in a cast shape,
Easily manufactured by casting. Further, since this block is tightened and connected in a direction parallel to the hole, deformation of the hole due to tightening is avoided. In the embodiment, a separate connection unit CU is provided between the unit control valves (3) and (2), but this connection unit is connected to the unit control valves (V3. V2
It can also be configured additionally to either one. Also,
Each spool 14 may be operated by other means than the pilot port pressure oil means.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明に係る複合制御弁は、単位
ブロック内に複数のスプールを整列収納して単位制御弁
を形成し、この単位制御弁を各スプール軸線の延長方向
に複数連− 8  = 結するよう構成したので、従来のこの種の複合制御弁に
比較して、その構造、形状を小形コンパクト化すること
ができる。しかも、本発明の単位制御弁を構成する単位
ブロックは、そのスプール穴ならびに油通路部材用穴が
平行して貫通されると共に特に後者の穴は鋳抜き状に形
成されるので、鋳物製作が容易化され、コスト上有利で
ある。さらに、各スプールに必要とされるシリンダポー
トならびにオーバーロードリリーフポートは単位ブロッ
クの周面上に分散して配設されるので、油圧配管の接続
が簡単、容易に行われる。
As explained above, in the composite control valve according to the present invention, a plurality of spools are arranged and housed in a unit block to form a unit control valve, and a plurality of unit control valves are connected in the extending direction of each spool axis. = Since the valve is configured to be connected, its structure and shape can be made smaller and more compact than conventional composite control valves of this type. Moreover, since the unit block constituting the unit control valve of the present invention has its spool hole and oil passage member hole passed through in parallel, and the latter hole in particular is formed in a cast shape, it is easy to manufacture the unit block by casting. It is advantageous in terms of cost. Furthermore, since the cylinder ports and overload relief ports required for each spool are distributed and arranged on the circumferential surface of the unit block, the hydraulic piping can be easily and easily connected.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明に係る複合制御弁の一実施例を示す斜視
図、第2図は第1図および第3図のA−A線断面図、第
3図は第2図のB−B線断面図、第4図は第3図のC−
C線断面図、第5図は第3図のD−D線断面図、第6図
は従来の複合制御弁を示す平面図、第7図は第6図の側
面図である。 10・・・方形ブロック 12・・・スプール用穴    14・・・スプール1
6・・・円筒状部材用穴 18・・・円筒状部材 20.22.24・・・油通路 26・・・タンク通路 28・・・ボルト穴 30・・・連結用ボルト Vl、V2.V3・・・単位制御弁 PTU・・・ポンプ・タンクボートユニット・PU・・
・ポンプボートユニット CU・・・接続ユニット CYL・・・シリンダポート 0/R・・・オーバーロードリリーフポートPIL・・
・パイロットボート Pi、P2.P3・・・ポンプボート T・・・タンクボート 平成 2年 5月30日
FIG. 1 is a perspective view showing an embodiment of a composite control valve according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIGS. 1 and 3, and FIG. 3 is a sectional view taken along line B-B in FIG. Line sectional view, Figure 4 is C- in Figure 3.
5 is a sectional view taken along the line D--D in FIG. 3, FIG. 6 is a plan view showing a conventional composite control valve, and FIG. 7 is a side view of FIG. 6. 10... Square block 12... Spool hole 14... Spool 1
6... Cylindrical member hole 18... Cylindrical member 20.22.24... Oil passage 26... Tank passage 28... Bolt hole 30... Connection bolt Vl, V2. V3...Unit control valve PTU...Pump, tank boat unit, PU...
・Pump boat unit CU...Connection unit CYL...Cylinder port 0/R...Overload relief port PIL...
・Pilot boat Pi, P2. P3...Pump boat T...Tank boat May 30, 1990

Claims (4)

【特許請求の範囲】[Claims] (1)単位ブロック内に複数のスプールを整列収納して
単位制御弁を構成し、この単位制御弁を各スプール軸線
の延長方向に複数連結することを特徴とする複合制御弁
(1) A composite control valve characterized in that a plurality of spools are arranged and housed in a unit block to form a unit control valve, and a plurality of unit control valves are connected in the extending direction of each spool axis.
(2)各単位制御弁は、共通の締結手段を介して連結す
ると共にそれぞれのタンク通路を連通する請求項1記載
の複合制御弁。
(2) The composite control valve according to claim 1, wherein the unit control valves are connected via a common fastening means and communicate with each other through their respective tank passages.
(3)単位ブロックは方形ブロックからなり、その中央
部に共通の油通路用円筒状部材を設けると共にこの円筒
状部材の周囲に4本のスプールを放射状に配設する請求
項1記載の複合制御弁。
(3) The composite control according to claim 1, wherein the unit block is a rectangular block, and a cylindrical member for a common oil passage is provided in the center thereof, and four spools are arranged radially around this cylindrical member. valve.
(4)方形ブロックの対向するそれぞれの2面に4本の
スプール用のそれぞれのシリンダポートならびにオーバ
ーロードリリーフポートを設ける請求項3記載の複合制
御弁。
(4) The composite control valve according to claim 3, wherein cylinder ports for the four spools and overload relief ports are provided on each of two opposing sides of the square block.
JP10292390A 1990-04-20 1990-04-20 Compound control valve Expired - Lifetime JP2804153B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10292390A JP2804153B2 (en) 1990-04-20 1990-04-20 Compound control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10292390A JP2804153B2 (en) 1990-04-20 1990-04-20 Compound control valve

Publications (2)

Publication Number Publication Date
JPH044375A true JPH044375A (en) 1992-01-08
JP2804153B2 JP2804153B2 (en) 1998-09-24

Family

ID=14340376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10292390A Expired - Lifetime JP2804153B2 (en) 1990-04-20 1990-04-20 Compound control valve

Country Status (1)

Country Link
JP (1) JP2804153B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020185A1 (en) * 2005-04-28 2006-11-09 Bosch Rexroth Teknik Ab Valve attachment on aluminum profiles
JP2016080038A (en) * 2014-10-15 2016-05-16 Ckd株式会社 Multifunction electromagnetic on-off valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005020185A1 (en) * 2005-04-28 2006-11-09 Bosch Rexroth Teknik Ab Valve attachment on aluminum profiles
DE102005020185B4 (en) * 2005-04-28 2008-01-24 Bosch Rexroth Teknik Ab valve assembly
JP2016080038A (en) * 2014-10-15 2016-05-16 Ckd株式会社 Multifunction electromagnetic on-off valve

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