JPH0158793B2 - - Google Patents
Info
- Publication number
- JPH0158793B2 JPH0158793B2 JP57049709A JP4970982A JPH0158793B2 JP H0158793 B2 JPH0158793 B2 JP H0158793B2 JP 57049709 A JP57049709 A JP 57049709A JP 4970982 A JP4970982 A JP 4970982A JP H0158793 B2 JPH0158793 B2 JP H0158793B2
- Authority
- JP
- Japan
- Prior art keywords
- closure
- viscosity lubricant
- high viscosity
- valve body
- recess
- 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
- 239000000314 lubricant Substances 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/22—Features relating to lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、グリスなどの高粘性潤滑剤の加圧注
入によつて流体漏洩防止と閉子回転操作負荷低減
を図れるように、バルブ本体内に回転操作自在に
収納した閉子に、その周面と端面で開口する流路
を形成し、前記バルブ本体と前記閉子の周面との
間に高粘性潤滑剤を加圧注入するための注入路を
設けたアングル型プラグバルブに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is designed to prevent fluid leakage and reduce the operating load of the closing member by pressurized injection of a high viscosity lubricant such as grease. A flow path opening at the circumferential surface and end surface of the closure rotatably housed in the closure is formed, and a high viscosity lubricant is pressurized and injected between the valve body and the circumference of the closure. This invention relates to an angle plug valve with an injection path.
従来、第４図に示すように、閉子０２の周面の
うち流路０１の周面開口部０１Ａ以外の全部を、
バルブ本体に近接させ、その近接箇所に形成した
微小間〓ａに、注入路から高粘性潤滑剤を加圧注
入して、微小間〓１ａ全体で高粘性潤滑剤による
押圧力を閉子０２に付与するように構成してい
た。
Conventionally, as shown in FIG.
A high viscosity lubricant is injected under pressure from the injection path into a small space 1a formed near the valve body, and the pressing force of the high viscosity lubricant is applied to the closure 02 throughout the small space 1a. It was configured to be granted.
しかし、周面開口部０１Ａには高粘性潤滑剤の
押圧力が作用しないで、その反対側では高粘性潤
滑剤の押圧力が作用するために、高粘性潤滑剤の
加圧注入に伴つて閉子０２が周面開口部０１Ａ側
に移動して、閉子０２の周面のうち周面開口部０
１Ａ側の一部がバルブ本体に強く押付けられる。
However, since the pressing force of the high viscosity lubricant does not act on the circumferential opening 01A, but the pressing force of the high viscosity lubricant acts on the opposite side, the opening 01A closes as the high viscosity lubricant is injected under pressure. The child 02 moves toward the circumferential opening 01A side and closes the circumferential opening 0 of the circumferential surface of the closing child 02.
A part of the 1A side is strongly pressed against the valve body.
したがつて、閉子０２とバルブ本体の接触に起
因して、閉子０２の回転操作負荷が増大し、殊に
操作初期において静止摩擦が大きくなるために極
めて大きな回転操作力を必要とし、バルブが大型
になるほど、閉子０２に対する駆動装置が大型で
高価になる欠点があつた。 Therefore, due to the contact between the closure 02 and the valve body, the rotational operation load on the closure 02 increases, and especially in the initial stage of operation, the static friction becomes large, requiring an extremely large rotational operation force. As the size of the closing member 02 increases, the driving device for the closing member 02 becomes larger and more expensive.
本発明の目的は、高粘性潤滑剤の注入圧を十分
に高くしながら、高粘性潤滑剤の加圧注入に起因
する閉子の回転操作負荷増大を、十分に抑制でき
るようにする点にある。 An object of the present invention is to sufficiently suppress the increase in the load on the rotational operation of the closure due to the pressurized injection of the high-viscosity lubricant, while increasing the injection pressure of the high-viscosity lubricant to a sufficiently high level. .
本発明の特徴構成は、
周面と端面で開口する流路を有する閉子の周面
のうち、前記流路の周面開口部とは反対側に、バ
ルブ本体と前記閉子と周面との間への注入路から
の高粘性潤滑剤加圧注入による前記閉子の押圧を
解除するための凹部を形成し、
前記凹部から前記流路への高粘性潤滑剤流出を
許容するための排出路を前記閉子に形成したこと
にあり、その作用効果は次の通りである。
The characteristic configuration of the present invention is that, on the circumferential surface of the closure having a flow path that opens at the circumference and the end face, the valve body, the closure and the circumference are arranged on the side opposite to the circumferential opening of the flow path. A recess is formed to release the pressure on the closure due to the pressurized injection of high viscosity lubricant from the injection path between the recesses, and a discharge is formed to allow the high viscosity lubricant to flow from the recess into the flow path. The reason lies in the fact that the passage is formed in the above-mentioned closure, and its effects are as follows.
バルブ本体と閉子の周面との間に注入路から高
粘性潤滑剤を加圧注入すると、凹部と周面開口部
以外においては、バルブ本体と閉子の周面との〓
間が微小であり、かつ、潤滑剤が高粘性であるた
め、高粘性潤滑剤が十分に高圧になつて、十分な
シール作用と閉子押圧作用が得られる。
When high viscosity lubricant is injected under pressure from the injection path between the valve body and the circumferential surface of the closure, the contact between the valve body and the circumference of the closure will occur except at the recess and the opening on the circumference.
Since the gap is minute and the lubricant has high viscosity, the high viscosity lubricant will be under sufficiently high pressure to provide sufficient sealing action and closure pressing action.
そして、凹部では、高粘性潤滑剤が充満して
も、排出路により流路に高粘性潤滑剤が流出する
ために、高粘性潤滑剤の圧力は余り大きくなら
ず、実質的には高粘性潤滑剤による閉子の押圧力
は発生しない。 Even if the recess is filled with high-viscosity lubricant, the high-viscosity lubricant flows out into the flow path through the discharge path, so the pressure of the high-viscosity lubricant does not increase much, and in reality, the high-viscosity lubricant flows out into the flow path. No closing force is generated by the agent.
したがつて、第３図に示すように、凹部４と周
面開口部１４においては閉子２が押圧されず、そ
の他の周面部分において閉子２が押圧され、か
つ、凹部４と周面開口部１Ａが反対側に位置する
ために、閉子２への押圧力の合力をほぼ零又は微
小にできる。 Therefore, as shown in FIG. 3, the closure 2 is not pressed in the recess 4 and the peripheral opening 14, but is pressed in other peripheral parts, and Since the opening 1A is located on the opposite side, the resultant force of the pressing force on the closure 2 can be made almost zero or very small.
つまり、凹部４及び周面開口部１Ａを正面から
見た状態での面積、形状、配置が互いにほぼ同じ
になるように形成すれば、閉子２への押圧力の合
力をほぼ零又は微小にでき、高粘性潤滑剤の注入
圧を高くしても、閉子２がバルブ本体に強く押付
けられて、閉子２の回転操作負荷が過大になるこ
とを、確実に防止できる。 In other words, if the recess 4 and the peripheral opening 1A are formed so that the area, shape, and arrangement when viewed from the front are almost the same, the resultant force of the pressing force on the closure 2 can be reduced to almost zero or very small. Even if the injection pressure of the high-viscosity lubricant is increased, it is possible to reliably prevent the closing element 2 from being strongly pressed against the valve body and causing an excessive rotational operation load on the closing element 2.
その結果、高粘性潤滑剤の加圧注入によるシー
ル性向上及び閉子回転操作力低減の両立を十分に
図れ、特に閉子の駆動装置の小型化とコストダウ
ンに有効であり、性能、設置面、経済性の全てに
おいて一段と優れたアングル型プラグバルブを提
供できるようになつた。
As a result, it is possible to sufficiently improve sealing performance by pressurized injection of high-viscosity lubricant and reduce the force required to rotate the closure, which is particularly effective in downsizing and cost reduction of the closure drive device, and improves performance and installation. Now we can offer an angle plug valve that is even more economical.
次に、第１図ないし第３図により実施例を示
す。
Next, an embodiment will be shown with reference to FIGS. 1 to 3.
テーパ状の周面を有する閉子２をバルブ本体３
内に回転操作自在に収容し、閉子２に一体形成し
た回転操作軸７をバルブ本体３に対して貫通さ
せ、バルブ本体３と回転操作軸７の間を環状シー
ル材８でシールしてある。 A closure 2 having a tapered peripheral surface is attached to a valve body 3.
A rotary operating shaft 7 integrally formed with the closure 2 is passed through the valve body 3, and the space between the valve body 3 and the rotary operating shaft 7 is sealed with an annular sealing material 8. .
閉子２に、その周面と端面で開口するほぼＬ字
状の流路１を形成し、閉子２の回転に伴つてバル
ブ本体３により周面開口部１Ａの開閉及び開度変
更が行われるように構成してある。 A substantially L-shaped flow path 1 that opens at the circumferential surface and end surface of the closure 2 is formed, and as the closure 2 rotates, the valve body 3 opens and closes the circumferential opening 1A and changes the opening degree. It is configured so that
回転操作軸７と閉子２に注入路１０を形成し、
注入路１０からのグリス等の高粘性潤滑剤を、バ
ルブ本体３と閉子２の周面との間に加圧注入し
て、シール性向上及び閉子２の回転操作負荷低減
を図れるように構成してある。 An injection path 10 is formed on the rotary operation shaft 7 and the closure 2,
A highly viscous lubricant such as grease from the injection path 10 is injected under pressure between the valve body 3 and the circumferential surface of the closure 2 to improve sealing performance and reduce the rotational operation load on the closure 2. It is configured.
閉子２の周面のうち周面開口部１Ａとは反対側
に、注入路１０からの高粘性潤滑剤加圧注入によ
る閉子２の押圧を解除するための凹部４を形成
し、凹部４から流路１への高粘性潤滑剤流出を許
容するための排出路６を閉子２に設け、凹部４内
の高粘性潤滑剤の充填圧を設定するためのリリー
フ弁５を排出路６に設けてある。 A recess 4 is formed on the side of the circumferential surface of the closure 2 opposite to the circumferential opening 1A to release the pressure on the closure 2 due to pressurized injection of high viscosity lubricant from the injection path 10. A discharge passage 6 is provided in the closure 2 to allow the high viscosity lubricant to flow out from the recess 4 into the flow passage 1, and a relief valve 5 is provided in the discharge passage 6 to set the filling pressure of the high viscosity lubricant in the recess 4. It is provided.
リリーフ弁５による設定充填圧は、バルブの大
きさ、閉子２とバルブ本体３との間のクリアラン
スの大きさ、高粘性潤滑剤の注入圧などに応じて
適宜設定するが、例えば注入圧が10〜20Kg／cm2の
場合には３Kg／cm2程度に設定する。 The filling pressure set by the relief valve 5 is appropriately set depending on the size of the valve, the size of the clearance between the closure 2 and the valve body 3, the injection pressure of high viscosity lubricant, etc. In the case of 10 to 20Kg/ cm2 , set it to about 3Kg/cm2.
凹部４及び周面開口部１Ａの投影形状、つまり
正面から見た状態での形状をほぼ同一にし、第３
図に示すように、凹部４と周面開口部１Ａ以外に
おいて閉子２の周面に作用する高粘性潤滑剤の押
圧力の合力がほぼ零になり、バルブ本体３に対す
る閉子２の片当りが防止される又は弱くなるよう
に構成してある。 The projected shape of the recess 4 and the peripheral opening 1A, that is, the shape when viewed from the front, is made almost the same, and the third
As shown in the figure, the resultant force of the pressing force of the high viscosity lubricant acting on the circumferential surface of the closure 2 in areas other than the recess 4 and the circumference opening 1A becomes almost zero, and the closure 2 hits the valve body 3 unevenly. The structure is such that it is prevented or weakened.
第１図ないし第３図は本発明の実施例を示し、
第１図は断面図、第２図は第１図の−矢視
図、第３図は作用説明図である。第４図は従来例
の概念図である。
１……流路、１Ａ……周面開口部、２……閉
子、３……バルブ本体、４……凹部、６……排出
路、１０……注入路。
1 to 3 show embodiments of the present invention,
FIG. 1 is a sectional view, FIG. 2 is a view taken along the - arrow in FIG. 1, and FIG. 3 is an explanatory view of the operation. FIG. 4 is a conceptual diagram of a conventional example. DESCRIPTION OF SYMBOLS 1...Flow path, 1A...Surface opening, 2...Closer, 3...Valve body, 4...Recess, 6...Discharge path, 10...Injection path.
Claims (1)
子２に、その周面と端面で開口する流路１を形成
し、前記バルブ本体３と前記閉子２の周面との間
に高粘性潤滑剤を加圧注入するための注入路１０
を設けたアングル型プラグバルブであつて、 前記閉子２の周面のうち前記流路１の周面開口
部１Ａとは反対側に、前記注入路１０からの高粘
性潤滑剤加圧注入による前記閉子２の押圧を解除
するための凹部４を形成し、 前記凹部４から前記流路１への高粘性潤滑剤流
出を許容するための排出路６を前記閉子２に形成
してあるアングル型プラグバルブ。[Scope of Claims] 1. A flow path 1 that is open at the circumferential surface and end surface of the closure 2 rotatably housed in the valve body 3 is formed, and the circumferential surfaces of the valve body 3 and the closure 2 are formed. An injection path 10 for injecting high viscosity lubricant under pressure between
An angle type plug valve provided with a high viscosity lubricant injected under pressure from the injection path 10 onto the peripheral surface of the closure 2 on the side opposite to the peripheral surface opening 1A of the flow path 1. A recess 4 is formed for releasing the pressure on the closing member 2, and a discharge passage 6 is formed in the closing member 2 for allowing the high viscosity lubricant to flow out from the recess 4 to the flow path 1. Angle type plug valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4970982A JPS58166176A (en) | 1982-03-26 | 1982-03-26 | Rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4970982A JPS58166176A (en) | 1982-03-26 | 1982-03-26 | Rotary valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58166176A JPS58166176A (en) | 1983-10-01 |
| JPH0158793B2 true JPH0158793B2 (en) | 1989-12-13 |
Family
ID=12838712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4970982A Granted JPS58166176A (en) | 1982-03-26 | 1982-03-26 | Rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001004042A (en) * | 1999-04-19 | 2001-01-09 | Koyo Sangyo Kk | L type gas cock |
| JP2005048949A (en) * | 2003-07-17 | 2005-02-24 | Snecma Moteurs | Valve device having long adjustment stroke |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003097740A (en) * | 2001-09-25 | 2003-04-03 | Koyo Sangyo Kk | L-type gas cock |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS486627U (en) * | 1971-06-04 | 1973-01-25 |
-
1982
- 1982-03-26 JP JP4970982A patent/JPS58166176A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001004042A (en) * | 1999-04-19 | 2001-01-09 | Koyo Sangyo Kk | L type gas cock |
| JP4545274B2 (en) * | 1999-04-19 | 2010-09-15 | 光陽産業株式会社 | L type gas stopper |
| JP2005048949A (en) * | 2003-07-17 | 2005-02-24 | Snecma Moteurs | Valve device having long adjustment stroke |
| JP4667779B2 (en) * | 2003-07-17 | 2011-04-13 | スネクマ | Valve device with long adjustment stroke |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58166176A (en) | 1983-10-01 |
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