JPS6315672Y2 - - Google Patents
Info
- Publication number
- JPS6315672Y2 JPS6315672Y2 JP8416582U JP8416582U JPS6315672Y2 JP S6315672 Y2 JPS6315672 Y2 JP S6315672Y2 JP 8416582 U JP8416582 U JP 8416582U JP 8416582 U JP8416582 U JP 8416582U JP S6315672 Y2 JPS6315672 Y2 JP S6315672Y2
- Authority
- JP
- Japan
- Prior art keywords
- spring
- valve body
- cylindrical
- head
- small diameter
- 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
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
【考案の詳細な説明】
この考案は閉鎖弁付の雄継手主としてロール圧
延機におけるロールバランスのための油圧配管に
使用される閉鎖弁付の雄継手に関する。[Detailed Description of the Invention] This invention relates to a male joint with a closing valve, which is mainly used in hydraulic piping for roll balance in a roll rolling mill.
一般に製鉄所におけるロール圧延機では、その
ロールバランス装置の油圧管路中に係脱容易な流
体継手を配設し、通常にはオイルポンプ側の管路
に雌継手を接続し、ロールを支持するシリンダ側
の管路に雄継手を接続して両者を結合しておき、
ロール取換え時には両者を分離して油圧管路に異
常な圧力がかからないようにしている。 Generally, in a roll rolling mill in a steel mill, a fluid joint that can be easily engaged and disconnected is installed in the hydraulic line of the roll balance device, and a female joint is usually connected to the line on the oil pump side to support the roll. Connect the male joint to the pipe line on the cylinder side and connect the two.
When replacing the rolls, the two are separated to prevent abnormal pressure from being applied to the hydraulic pipeline.
そして、上記の流体継手として従来では、第１
図のような雌継手Ａ、すなわち筒状本体１０の内
部に、スパイダー１１に係止されたスプリングS1
によりかさ形頭部が本体１０の環状弁座１０ａに
圧接するように付勢された閉鎖弁体１２を内蔵し
た自己密封式の雌継手１０をオイルポンプ側の管
路に取付け、一方ロールの支持シリンダ側の管路
には、結合時に雌継手１０中の閉鎖弁１２を押し
開く杆体２１を筒状本体２０の内部にスパイダー
２２により固定した雄継手B′を取付けるように
している。 Conventionally, as the above-mentioned fluid coupling, the first
Inside the female joint A as shown in the figure, that is, the cylindrical body 10, there is a spring S 1 latched to the spider 11.
A self-sealing female joint 10 containing a built-in closing valve body 12 whose umbrella-shaped head is urged to come into pressure contact with the annular valve seat 10a of the main body 10 is attached to a conduit on the oil pump side, while supporting the roll. A male joint B' having a rod 21 fixed inside the cylindrical body 20 by a spider 22, which pushes open the closing valve 12 in the female joint 10 when coupled, is attached to the cylinder-side conduit.
ところで、この雄継手B′は内部に自己密封式
の閉鎖弁を持たないので、継手分離時にロール側
の管路中に圧力を保留せず、管路が安全に維持さ
れる反面、内部の作動油が流れてしまい（流れた
油はタンクに戻す）、再びロールを稼動する際に
は管路に作動油を追加する必要があり、経費の増
大を招くばかりでなく、作業環境の悪化や作動油
流出のためのロール下がりを招き、その調整に手
間がかかり作業能率を低下させてしまう。 By the way, this male joint B' does not have an internal self-sealing shutoff valve, so when the joint is separated, pressure is not retained in the roll-side pipe line, and the pipe line is maintained safely, but the internal operation If the oil flows out (the flowed oil is returned to the tank), it is necessary to add hydraulic oil to the pipe when operating the roll again, which not only increases costs but also worsens the working environment and prevents operation. This causes the roll to drop due to oil spillage, and the adjustment is time-consuming and reduces work efficiency.
この考案は上記の欠点を改良し、継手分離時に
おいてロールの支持側管路の内部流体の無駄な流
出を防ぐと共に該管路内に異常圧力が生じた際に
は、応答良くこれを緩和して配管の安全を確保す
るようにしたもので、外面の途中に環状凹所を有
する筒状本体の結合側端部に小径開口部を形成す
ると共に環状凹所の内側内面に段部を設け、筒状
本体の内側中央部に筒状のスプリングガイドを固
定し、それより結合端に間隔をおいて受けリング
を配設し、該受けリングとスプリングガイドの固
定端との間には第１スプリングを介装し、結合端
側の内部には複数の通孔を有する筒部と基部外周
にシールリングを備えた頭部とからなる閉鎖弁体
を移動可能に配設し、本体の小径開口部と弁体の
筒部基端との間には第１スプリングよりばね力が
弱く配管中の通常の流体圧力は保持しうる第２ス
プリングを介装し、弁体の筒部基端を受けリング
に圧接させると共に頭部を本体の小径開口部に嵌
合してこれを閉塞するようにしたことを特徴とし
ている。 This invention improves the above-mentioned drawbacks, prevents wasteful outflow of the internal fluid in the supporting side pipe of the roll when the joint is separated, and alleviates abnormal pressure in a responsive manner when it occurs in the pipe. This system is designed to ensure the safety of piping by forming a small-diameter opening at the connecting end of a cylindrical body that has an annular recess in the middle of the outer surface, and providing a step on the inner surface of the annular recess. A cylindrical spring guide is fixed to the inner central part of the cylindrical body, and a receiving ring is disposed at the connecting end at a distance from the cylindrical spring guide, and a first spring is disposed between the receiving ring and the fixed end of the spring guide. A closing valve body consisting of a cylindrical part with a plurality of through holes and a head equipped with a seal ring on the outer periphery of the base is movably disposed inside the coupling end side, and the small diameter opening of the main body A second spring, which has a weaker spring force than the first spring and can maintain normal fluid pressure in the piping, is interposed between the base end of the cylindrical portion of the valve body and a ring that receives the base end of the cylindrical portion of the valve body. It is characterized in that the head is pressed into contact with the small diameter opening of the main body to close it.
第２図および第３図はこの考案の実施例を示す
ものであり、１は雄継手Ｂの筒状本体で、配管接
続側端部は内面に雌ねじ１ｃを備えて六角外形の
ナツト状をなし、そこから結合端側に向つて外面
は複数段に段付けられ、途中には前記雌継手Ａの
結合用ボール１３を受容するための環状凹所１ｂ
が形成され、結合側端部は内向きに屈曲して小径
開口部１ａをなしており、また、環状凹所１ｂの
内側に当たる内面には段部１ｄが形成されてい
る。 Figures 2 and 3 show an embodiment of this invention, in which 1 is a cylindrical body of a male joint B, and the end on the piping connection side has a hexagonal nut shape with a female thread 1c on the inner surface. , the outer surface is stepped in multiple stages from there toward the coupling end side, and an annular recess 1b for receiving the coupling ball 13 of the female joint A is provided in the middle.
The connecting end is bent inward to form a small diameter opening 1a, and a step 1d is formed on the inner surface of the annular recess 1b.
そして、筒状本体１の内側中央部には、短かな
筒体をなしたスプリングガイド２がその配管側の
つば部２ａにおいて止め輪３により固定され、こ
れに間隔をおいて対向するように上記内面の段部
１ｄの部分には受けリング４が配設され、この受
けリング４とスプリングガイド２のつば部２ａと
の間にはばね力の強い第１のスプリング５が介装
され、受けリング４を段部１ｄの側面に圧接して
いる。 A spring guide 2 having a short cylindrical body is fixed to the inner central part of the cylindrical body 1 by a retaining ring 3 at its piping-side flange 2a. A receiving ring 4 is disposed at the stepped portion 1d on the inner surface, and a first spring 5 with a strong spring force is interposed between the receiving ring 4 and the collar 2a of the spring guide 2. 4 is pressed against the side surface of the stepped portion 1d.
また、結合端側の内部には、スプリングガイド
２とほぼ同径で周壁に複数の通孔６ｃを備えた筒
部６ａと基部外周にシールリング７が埋設された
凸字状の頭部６ｂとからなる閉鎖弁体６が移動可
能に嵌挿されており、その基端のつば部６ｄと小
径開口部１ａの内側面との間には、第１スプリン
グ５よりばね力が弱く配管中の通常の圧力を保持
し得る強さの第２スプリング８が介装されてい
て、閉鎖弁体６はこの第２スプリング８により配
管接続側に付勢され、不使用時には、基端のつば
部６ｄが受けリング４に当接し、頭部６ｂの大径
基部が本体１の小径開口部１ａに嵌合し、シール
リング７により開口部を閉塞している。 Also, inside the coupling end side, there is a cylindrical part 6a having approximately the same diameter as the spring guide 2 and having a plurality of through holes 6c in the peripheral wall, and a convex head part 6b with a seal ring 7 embedded in the outer periphery of the base part. A closing valve body 6 is movably inserted, and the spring force is weaker than that of the first spring 5 between the collar portion 6d at the base end and the inner surface of the small diameter opening 1a. A second spring 8 having a strength capable of holding a pressure of The large-diameter base of the head 6b is in contact with the receiving ring 4, and the large-diameter base of the head 6b fits into the small-diameter opening 1a of the main body 1, and the seal ring 7 closes the opening.
その使用に当たり、上記雄継手Ｂをその雌ねじ
１ｃを介してロール圧延機のロール支持シリンダ
側の配管l1に接続し、一方、オイルポンプ側の配
管l2に接続された前記第１図の雌継手Ａのソケツ
ト１４をスプリングS2のばね力に抗して後退させ
て結合用ボール１３に対する圧迫を解除し、その
状態で雄継手Ｂの結合側端部を雌継手Ａに嵌め込
めば、雄継手Ｂの閉鎖弁体６の頭部６ｂが雌継手
Ａ中の閉鎖弁体１２の頭部に当接し、相互に押し
合いながら、雌継手ＡにおいてはスプリングS1を
圧縮しつつ弁体１２が後退し、雄継手Ｂにおいて
は、一方では基端つば６ｄおよび受けリング４を
介して第１スプリング５を圧縮し、他方では第２
スプリング８を伸張させつつ弁体６が後退し、第
４図のように雌継手Ａのボール１３が雄継手Ｂの
環状凹所１ｂに嵌合し、また雄継手Ｂの弁体６の
つば部６ｄがスプリングガイド２の前端に当接し
た状態となり、この状態でソケツト１４を復元さ
せることにより両継手Ａ，Ｂは図示のように流体
通路を開いた状態に結合され、圧延ロールの支持
シリンダ側に所要圧力のオイルが供給される。 In its use, the above-mentioned male joint B is connected to the piping l1 on the roll support cylinder side of the roll rolling mill through its female thread 1c, while the female joint B in Fig. 1 is connected to the piping l2 on the oil pump side. If the socket 14 of the joint A is moved backward against the spring force of the spring S2 to release the pressure on the connecting ball 13, and in this state the connecting end of the male joint B is fitted into the female joint A, the male The head 6b of the closing valve body 6 of the joint B comes into contact with the head of the closing valve body 12 in the female joint A, and while pressing against each other, the valve body 12 moves back in the female joint A while compressing the spring S1 . However, in the male joint B, the first spring 5 is compressed via the base end collar 6d and the receiving ring 4 on the one hand, and the second spring 5 is compressed on the other hand.
The valve body 6 moves backward while the spring 8 is expanded, and the ball 13 of the female joint A fits into the annular recess 1b of the male joint B, as shown in FIG. 6d is brought into contact with the front end of the spring guide 2, and by restoring the socket 14 in this state, both joints A and B are connected in a state where the fluid passage is opened as shown in the figure, and the support cylinder side of the rolling roll is connected. Oil is supplied at the required pressure.
かくして、ロールの取換えなどの必要が生じた
際には、雌継手Ａのソケツト１４を再び後退させ
ボール１３に対する圧迫を解除しておいて、雄継
手Ｂを引抜けば、雄継手Ｂは雌継手Ａから容易に
分離され、圧縮されていた第１スプリング５の復
元力により、受けリング４を介して閉鎖弁体６が
結合端側に前進させられ、受けリング４が本体１
の段部１ｄに圧接するに及んで、頭部６ｂの大径
基部が再び第２図のように小径開口部１ａに嵌合
し、シールリング７により開口部が閉塞され、ロ
ール側配管中のオイルの流出が防止される。 Thus, when it becomes necessary to replace the roll, the socket 14 of the female joint A is moved back again to release pressure on the ball 13, and the male joint B is pulled out. Due to the restoring force of the compressed first spring 5, which is easily separated from the joint A, the closing valve body 6 is advanced toward the coupling end side via the receiving ring 4, and the receiving ring 4 is moved toward the main body 1.
When the head 6b comes into pressure contact with the stepped portion 1d, the large-diameter base of the head 6b again fits into the small-diameter opening 1a as shown in FIG. Oil spillage is prevented.
また、雌継手Ａ中においてもスプリングS1の復
元力により閉鎖弁体１２が前進し、その頭部が本
体１０の環状弁座１０ａに圧接して管路を直ちに
閉塞する。 Also, in the female joint A, the closing valve body 12 moves forward due to the restoring force of the spring S1 , and its head comes into pressure contact with the annular valve seat 10a of the main body 10, immediately closing the pipe.
そして、ロールの取換え作業中に、作業の手違
いなどによりロール側の配管l1中に異常な圧力が
生じた際には、その圧力が雄継手Ｂの内部通路を
介して閉鎖弁体６の頭部６ｂにかかり、したがつ
て弁体６はこれを保持している比較的弱い第２ス
プリング８を圧縮しながら第５図のように前進
し、その頭部６ｂが本体の小径開口部１ａから突
出することになり、管路内の圧力油が弁体の通孔
６ｃを通つて外部に流出し、内部圧力の異常な高
まりが阻止され管路の安全が保たれる。 During the roll replacement work, if abnormal pressure occurs in the roll-side piping l1 due to a mistake in the work, the pressure will be transferred to the closing valve body 6 through the internal passage of the male joint B. Therefore, the valve body 6 moves forward as shown in FIG. 5 while compressing the relatively weak second spring 8 holding the valve body 6, and the head 6b moves forward as shown in FIG. As a result, the pressure oil in the pipeline flows out through the through hole 6c of the valve body, preventing an abnormal increase in internal pressure and maintaining the safety of the pipeline.
そして、圧力油が外部に流出し内部圧力が下が
れば、第２スプリング８の復元作用で閉鎖弁体６
は第２図の元の状態に戻り、管路を閉塞する。 When the pressure oil leaks outside and the internal pressure drops, the closing valve body 6 is restored by the restoring action of the second spring 8.
returns to the original state shown in FIG. 2 and closes the conduit.
以上のようにこの考案では、ロール圧延機のロ
ールバランスのための配管用雄継手として、筒状
本体の結合端側に小型開口部を形成すると共に内
面の一部に段部を形成し、内側中央部には筒状の
スプリングガイドを固定し、それより結合端側に
間隔をおいて受けリングを配設し、この受けリン
グとスプリングガイドの固定端との間に第１スプ
リングを介装し、結合端側の内部には複数の通孔
を有する筒部と基部外周にシールリングを備えた
閉鎖弁体を移動可能に配設し、本体の小径開口部
と弁体の筒部基端との間に第１スプリングよりば
ね力が弱く配管中の通常の流体圧力は保持しうる
第２スプリングを介装し、弁体の筒部基端を受け
リングに圧接させると共に頭部を本体の小径開口
部に嵌合させてこれを閉塞するようにしたので、
使用中において雌継手から分離した際には、閉鎖
弁体が強い第１スプリングの作用で結合端側に直
ちに移動してその頭部により開口部を密閉し、内
部流体の流出を阻止することができ、作動油の無
駄が省けて経済的であり、ロール下がりも防げて
作業能率を向上させることができ、また、ロール
の取換え時に配管中に異常な圧力が生じた際に
は、ばね力の弱い第２スプリングが直ちに圧縮さ
れて弁頭部が本体から突出して圧力流体を排除さ
せることができ、応答性が良好で配管の安全を確
実に維持することができ、そして弁体は筒状にし
たので径を大きくすることができ、それだけ強度
も強く製作し易いなどの実用的な効果を有する。 As described above, in this invention, as a male joint for piping for roll balance of a roll rolling mill, a small opening is formed on the joint end side of the cylindrical body, a step is formed on a part of the inner surface, and a step is formed on the inner surface. A cylindrical spring guide is fixed to the center part, a receiving ring is arranged at a distance from the connecting end side, and a first spring is interposed between the receiving ring and the fixed end of the spring guide. A closing valve body having a cylindrical portion having a plurality of through holes and a seal ring on the outer periphery of the base is movably disposed inside the coupling end side, and the small diameter opening of the main body and the base end of the cylindrical portion of the valve body are connected to each other. A second spring, which has a weaker spring force than the first spring and can maintain the normal fluid pressure in the piping, is interposed between the two springs to press the base end of the cylindrical part of the valve body against the receiving ring, and to press the head part against the small diameter of the main body. Since it was made to fit into the opening and close it,
When it is separated from the female joint during use, the closing valve body immediately moves to the connecting end side by the action of the strong first spring, sealing the opening with its head and preventing the internal fluid from flowing out. This is economical as it eliminates wastage of hydraulic oil, improves work efficiency by preventing rolls from falling down, and reduces spring force when abnormal pressure occurs in piping when replacing rolls. The weak second spring is immediately compressed and the valve head can protrude from the main body to eliminate the pressure fluid, and the response is good and the safety of the piping can be maintained reliably, and the valve body is cylindrical. This allows the diameter to be increased, which has practical effects such as increased strength and ease of manufacture.
第１図は従来公知の雄継手と雌継手を分離した
状態の半断面側面図。第２図はこの考案に係る雄
継手の半断面側面図。第３図はその左側正面図。
第４図は雌継手との結合時の半断面側面図。第５
図は分離時に異常圧力を受けた状態の半断面側面
図。
図中、Ａ……雌継手、Ｂ……雄継手、１……筒
状本体、１ａ……小径開口部、１ｂ……環状凹
所、１ｄ……段部、２……スプリングガイド、３
……止め輪、４……受けリング、５……第１スプ
リング、６……閉鎖弁体、６ａ……筒部、６ｂ…
…頭部、６ｃ……通孔、７……シールリング、８
……第２スプリング。
FIG. 1 is a half-sectional side view of a conventionally known male and female joint separated. FIG. 2 is a half-sectional side view of the male joint according to this invention. Figure 3 is its left front view.
FIG. 4 is a half-sectional side view when coupled with a female joint. Fifth
The figure is a half-sectional side view of the state under abnormal pressure during separation. In the figure, A... Female joint, B... Male joint, 1... Cylindrical body, 1a... Small diameter opening, 1b... Annular recess, 1d... Step, 2... Spring guide, 3
... Retaining ring, 4 ... Reception ring, 5 ... First spring, 6 ... Closing valve body, 6a ... Cylinder part, 6b ...
...Head, 6c...Through hole, 7...Seal ring, 8
...Second spring.
Claims (1)
の結合側端部に小径開口部１ａを形成すると共に
上記環状凹所１ｂの内側内面に段部１ｄを設け、
筒状本体１の内側中央部に筒状のスプリングガイ
ド２を固定し、それより結合端側に間隔をおいて
受けリング４を配設し、該受けリング４とスプリ
ングガイド２の固定端との間には第１スプリング
５を介装し、結合端側の内部には複数の通孔６ｃ
を有する筒部６ａと基部外周にシールリング７を
備えた頭部６ｂとからなる閉鎖弁体６を移動可能
に配設し、前記小径開口部１ａと弁体６の筒部基
端との間には第１スプリング５よりばね力が弱く
配管中の通常の流体圧力は保持しうる第２スプリ
ング８を介装し、上記弁体６の筒部基端を上記受
けリング４に圧接させると共に頭部６ｂを本体の
小径開口部１ａに嵌合してこれを閉塞させてなる
閉鎖弁付の雄継手。 A cylindrical body 1 having an annular recess 1b in the middle of the outer surface
A small diameter opening 1a is formed at the coupling side end of the annular recess 1b, and a step 1d is provided on the inner inner surface of the annular recess 1b.
A cylindrical spring guide 2 is fixed to the inner central part of the cylindrical body 1, and a receiving ring 4 is disposed at a spaced interval on the coupling end side. A first spring 5 is interposed therebetween, and a plurality of through holes 6c are provided inside the coupling end side.
A closing valve body 6 consisting of a cylindrical portion 6a having a cylindrical portion 6a and a head 6b having a seal ring 7 on the outer periphery of the base is movably disposed, and a valve body 6 is movably arranged between the small diameter opening 1a and the base end of the cylindrical portion of the valve body 6. A second spring 8, which has a weaker spring force than the first spring 5 and can maintain normal fluid pressure in the piping, is interposed to press the base end of the cylindrical portion of the valve body 6 against the receiving ring 4, and to press the head A male joint with a closing valve, in which the portion 6b is fitted into the small diameter opening 1a of the main body to close it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8416582U JPS58187686U (en) | 1982-06-08 | 1982-06-08 | Male fitting with closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8416582U JPS58187686U (en) | 1982-06-08 | 1982-06-08 | Male fitting with closing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58187686U JPS58187686U (en) | 1983-12-13 |
| JPS6315672Y2 true JPS6315672Y2 (en) | 1988-05-02 |
Family
ID=30093127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8416582U Granted JPS58187686U (en) | 1982-06-08 | 1982-06-08 | Male fitting with closing valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58187686U (en) |
-
1982
- 1982-06-08 JP JP8416582U patent/JPS58187686U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58187686U (en) | 1983-12-13 |
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