JPS6240506B2 - - Google Patents
Info
- Publication number
- JPS6240506B2 JPS6240506B2 JP1971382A JP1971382A JPS6240506B2 JP S6240506 B2 JPS6240506 B2 JP S6240506B2 JP 1971382 A JP1971382 A JP 1971382A JP 1971382 A JP1971382 A JP 1971382A JP S6240506 B2 JPS6240506 B2 JP S6240506B2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- cover
- case
- pressure
- mud
- 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
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004062 sedimentation Methods 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Devices (AREA)
- Diaphragms And Bellows (AREA)
Description
【発明の詳細な説明】
本発明は、地盤に適宜深さの孔を掘削する竪孔
掘削機等の水中回転機械において、回転軸を内装
したケース内の圧力を掘削孔内の圧力にバランス
させる装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention balances the pressure in a case containing a rotating shaft with the pressure in the borehole in an underwater rotating machine such as a pit excavator that excavates a hole of an appropriate depth in the ground. It is related to the device.
竪孔を掘削する竪孔掘削機等の水中回転機械の
場合、水深に比例して水圧が大きくなり、回転軸
のシールは耐圧性の高いものが要求される。この
ため、前記ケースにオイルを充満させると共に、
そのケースにベローズ或いはダイヤフラムとシリ
ンダ機構等を設けて、内圧と外圧とをバランスさ
せる方法が提案されている。しかし、これらのほ
とんどは、圧力の変動に対し容易に伸縮可能な竪
型機構になつている。しかし、この方法では、泥
水中で使用した場合、泥の沈積を招いて伸縮性を
損う恐れがあつた。また、この装置の構造上、横
方向に取付けたい場合であつても、このような竪
型機構のバランス装置では対応がむずかしかつ
た。また横型機構のバランス装置として、実公昭
48−28983号公報で開示されている。これは、回
転軸の中にダイヤフラムが封じ込められたもので
あり、軸の強度を弱めると共に、軸の大きさによ
つてダイヤフラムの形状を変更しなければならな
い欠点を有していた。また外圧に対応してダイヤ
フラムが伸縮した際、外液をダイヤフラムの中に
取込むことになるが、この時に外流中の泥がダイ
ヤフラムの中に沈降して、信頼性を損うと共に、
泥の排除もむずかしかつた。さらに、地上に機械
を引上げた際、ダイヤフラムの伸縮状態が見えな
いため、ダイヤフラムが正常に作動し得る状態に
あるか否かの確認も面倒であつた。 In the case of an underwater rotating machine such as a pit excavator that excavates a pit, the water pressure increases in proportion to the water depth, and the seal on the rotating shaft is required to have high pressure resistance. Therefore, while filling the case with oil,
A method has been proposed in which the case is provided with a bellows or diaphragm and a cylinder mechanism to balance the internal pressure and external pressure. However, most of these are vertical mechanisms that can easily expand and contract in response to pressure fluctuations. However, when this method is used in muddy water, there is a risk that mud will accumulate and the elasticity will be impaired. Furthermore, due to the structure of this device, even if it is desired to mount the device laterally, it is difficult to do so with a balance device having such a vertical mechanism. Also used as a balance device for horizontal mechanisms.
It is disclosed in Publication No. 48-28983. This has the drawback that the diaphragm is enclosed within the rotating shaft, which weakens the strength of the shaft and requires changing the shape of the diaphragm depending on the size of the shaft. Furthermore, when the diaphragm expands and contracts in response to external pressure, external liquid is drawn into the diaphragm, but at this time, mud in the external flow settles into the diaphragm, impairing reliability and
It was also difficult to remove the mud. Furthermore, when the machine is pulled up to the ground, the state of expansion and contraction of the diaphragm cannot be seen, making it troublesome to check whether the diaphragm is in a state where it can operate normally.
本発明は、上記した問題点を解決するためにな
されたもので、その目的とするところは、外圧に
対応してダイヤフラムが伸縮する際、泥の沈積に
よつて伸縮性が損われることのない横型の圧力バ
ランス装置を提供することにある。 The present invention has been made to solve the above-mentioned problems, and its purpose is to prevent the elasticity of the diaphragm from being impaired due to mud accumulation when the diaphragm expands and contracts in response to external pressure. The object of the present invention is to provide a horizontal pressure balance device.
この目的を達成するために、本発明の圧力バラ
ンス装置は、水中回転機械の軸封装置を内蔵した
ケースに突出する形でＯリングを介してボルトに
よつて取付けられ、かつリングの集合体で横方向
に伸縮可能に形成された円筒状のダイヤフラム
と、該ダイヤフラムが内蔵され、前記リングの集
合体が最も縮小した時の外径より僅かに大きな内
径を有すると共に、下部に複数個の孔を有するカ
バーとにより構成したことを特徴とするものであ
る。 In order to achieve this object, the pressure balance device of the present invention is installed by a bolt through an O-ring in a protruding manner in a case containing a shaft sealing device of an underwater rotating machine, and is an assembly of rings. A cylindrical diaphragm formed to be expandable and contractable in the lateral direction; the diaphragm is built-in, and the ring assembly has an inner diameter slightly larger than the outer diameter when it is most contracted, and has a plurality of holes in the lower part. The present invention is characterized in that it is constructed by a cover having.
以下、本発明の一実施例を第１図及び第２図を
用いて、さらに具体的に説明する。第１図は本発
明の圧力バランス装置の一部を断面していた断面
側面図、第２図は第１図の平面図である。１は水
中回転機械の軸封装置を内蔵したケースで、ケー
ス１には外圧と内圧とがバランスするように、横
方向に伸縮可能に形成された円筒状のダイヤフラ
ム２が取付けられている。３はダイヤフラム２を
保護する円筒状のカバーで、該カバー３には外圧
がダイヤフラム２に作用するための孔３ａを有
し、さらに泥が沈積しないように、泥を下方へ落
とすための孔３ｂが下側に複数個設けられてい
る。また、この泥の排除効率を高めるために水の
流れをよくする孔３ｃが上側に複数個設けられて
いる。４はダイヤフラム２及びカバー３を一体的
にケース１に袋ねじ形式で固定するボルト、５は
ダイヤフラム２のみをケース１に袋ねじ形式で固
定するボルトである。また、ダイヤフラム２は、
金属製のフランジ部２ａを有するゴム体２ｂによ
つて構成され、両者は焼付け及びフランジ２ａに
設けられた孔部２a′にゴム体２ｂの一部がくい込
む形で一体的に結合されている。また、フランジ
部２ａとケース１との接触面にＯリング６が介設
され、内・外液の流通を阻止するようにシールさ
れている。また、ゴム体２ｂは渦巻形状ではな
く、それぞれのリングの集合体によつて形成さ
れ、泥が付着しにくいようになつている。また、
カバー３の内径はゴム体２ｂが最も縮小した時の
外径と僅かな隙間を要してほぼ等しい寸法に設定
されている。従つて、ゴム体２ｂの伸縮に際して
は、カバー３の内径部分がガイドになるため、安
定した状態で横方向へ移動することができる。さ
らに、カバー３の長さはオイルの熱膨脹によるゴ
ム体２ｂの伸縮量に対して余裕をもつて設定され
ている。 Hereinafter, one embodiment of the present invention will be described in more detail with reference to FIGS. 1 and 2. FIG. 1 is a partially sectional side view of the pressure balance device of the present invention, and FIG. 2 is a plan view of FIG. 1. Reference numeral 1 denotes a case housing a shaft sealing device for an underwater rotating machine, and a cylindrical diaphragm 2 is attached to the case 1 so as to be expandable and contractable in the lateral direction so as to balance external pressure and internal pressure. Reference numeral 3 denotes a cylindrical cover that protects the diaphragm 2. The cover 3 has holes 3a for applying external pressure to the diaphragm 2, and holes 3b for dropping mud downward to prevent mud from accumulating. There are several on the bottom. Moreover, in order to improve the mud removal efficiency, a plurality of holes 3c are provided on the upper side to improve the flow of water. Numeral 4 is a bolt that integrally fixes the diaphragm 2 and cover 3 to the case 1 using a cap screw type, and 5 is a bolt that fixes only the diaphragm 2 to the case 1 using a cap screw type. In addition, the diaphragm 2 is
It is composed of a rubber body 2b having a metal flange portion 2a, and both are integrally connected by baking and by fitting a part of the rubber body 2b into a hole 2a' provided in the flange 2a. . Further, an O-ring 6 is interposed on the contact surface between the flange portion 2a and the case 1, and is sealed to prevent the flow of internal and external fluids. Further, the rubber body 2b is not spiral-shaped but is formed by an assembly of rings, so that mud is less likely to adhere to it. Also,
The inner diameter of the cover 3 is set to be approximately equal to the outer diameter of the rubber body 2b when it is most reduced, with a slight gap. Therefore, when the rubber body 2b expands and contracts, the inner diameter portion of the cover 3 serves as a guide, so that it can move laterally in a stable state. Furthermore, the length of the cover 3 is set to have a margin for the amount of expansion and contraction of the rubber body 2b due to thermal expansion of the oil.
次に、本発明の作用について説明する。ケース
１にはオイルが充満されており、このオイルはダ
イヤフラム２の内側を満たしている。また、ダイ
ヤフラム２の外側は、カバー３の孔３ａ，３ｂ，
３ｃを経た外液で満たされている。竪孔の掘削に
よつて水中回転機械の深度が増すと外圧が高くな
り、ダイヤフラム２は、第１図の仮想線で示した
状態から実線の状態に縮小される。この時、カバ
ー３の内面をガイドとしてゴム体２ｂが移動する
と共に、カバー３の孔３ｂがあいていることと、
ゴム体２ｂがリングの集合体で形成されているこ
とから、水の流れによつて泥が下方に落下するの
で、泥の沈積がなく、ゴム体の横方向の移動をス
ムーズにしている。また、ゴム体２ｂが最も縮ん
だ状態での外径より、カバー３の内径は僅かに大
きく設定したので、ダイヤフラム２の伸縮時に互
いにせり合うこともない。また、地上に水中回転
機械を引上げた際、カバー３の孔を通じてダイヤ
フラム２の異常を確認することができる。また、
ボルト５は取付けたままで、ボルト４だけを取外
すことにより、カバー３だけを取外すことができ
るので、仮にカバー３が障害物等により変形して
も、その取外しのためにケース１内のオイルを抜
く必要がない。 Next, the operation of the present invention will be explained. The case 1 is filled with oil, and this oil fills the inside of the diaphragm 2. Further, the outside of the diaphragm 2 has holes 3a, 3b of the cover 3,
It is filled with external fluid that has passed through 3c. As the depth of the underwater rotating machine increases due to the excavation of a shaft, the external pressure increases, and the diaphragm 2 is reduced from the state shown by the imaginary line in FIG. 1 to the state shown by the solid line. At this time, the rubber body 2b moves using the inner surface of the cover 3 as a guide, and the hole 3b of the cover 3 is opened.
Since the rubber body 2b is formed of an aggregate of rings, mud falls downward due to the flow of water, so there is no sedimentation of mud, and the rubber body can move smoothly in the lateral direction. Furthermore, since the inner diameter of the cover 3 is set slightly larger than the outer diameter when the rubber body 2b is in its most contracted state, the diaphragms 2 do not come into contact with each other when expanding and contracting. Further, when the underwater rotating machine is pulled up to the ground, abnormalities in the diaphragm 2 can be confirmed through the hole in the cover 3. Also,
Since the cover 3 can be removed by removing only the bolts 4 while leaving the bolts 5 attached, even if the cover 3 is deformed due to an obstacle, the oil inside the case 1 can be drained in order to remove it. There's no need.
以上述べたように、本発明の圧力バランス装置
を水中回転機械に適用することにより、ケースの
外部へ突出させて取付けても、泥の沈積によつて
伸縮が妨げられないので、横に伸縮する方向での
取付けが可能となる。従つて軸封装置の内部側へ
取付ける場合と比較して、取付けが制約されにく
いので、広い適用範囲が得られる。 As described above, by applying the pressure balance device of the present invention to an underwater rotating machine, even if it is installed so as to protrude outside the case, the expansion and contraction will not be hindered by mud accumulation, so it can expand and contract horizontally. It is possible to install it in any direction. Therefore, compared to the case where it is attached to the inside of the shaft sealing device, the attachment is less restricted and a wider range of application can be obtained.
第１図及び第２図は本発明の一実施例を示した
もので、第１図は一部を断面した圧力バランス装
置の側面図、第２図は第１図の平面図である。
１……ケース、２……ダイヤフラム、２０……
フランジ部、２ｂ……ゴム体、３……カバー、３
ｂ……孔、４，５……ボルト、６……Ｏリング。
1 and 2 show an embodiment of the present invention, in which FIG. 1 is a partially sectional side view of the pressure balance device, and FIG. 2 is a plan view of FIG. 1. 1...Case, 2...Diaphragm, 20...
Flange part, 2b...Rubber body, 3...Cover, 3
b...hole, 4, 5...bolt, 6...O-ring.
Claims (1)
突出する形でＯリングを介してボルトによつて取
付けられ、かつリングの集合体で横方向に伸縮可
能に形成された円筒状のダイヤフラムと、該ダイ
ヤフラムが内蔵され、前記リングの集合体が最も
縮小した時の外径より僅かに大きな内径を有する
と共に、下部に複数個の孔を有するカバーとによ
り構成したことを特徴とする水中回転機械におけ
る圧力バランス装置。1. A cylindrical diaphragm that is attached to a case containing a shaft sealing device of an underwater rotary machine by a bolt through an O-ring in a protruding manner, and is formed as an assembly of rings so as to be expandable and contractable in the lateral direction; In an underwater rotating machine, the diaphragm is built-in, the ring assembly has an inner diameter slightly larger than the outer diameter when the ring assembly is at its most reduced size, and a cover has a plurality of holes at the bottom thereof. Pressure balance device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971382A JPS57208362A (en) | 1982-02-12 | 1982-02-12 | Pressure balancing device in underwater rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1971382A JPS57208362A (en) | 1982-02-12 | 1982-02-12 | Pressure balancing device in underwater rotary machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14752580A Division JPS5771989A (en) | 1980-10-23 | 1980-10-23 | Under water shaft sealing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57208362A JPS57208362A (en) | 1982-12-21 |
| JPS6240506B2 true JPS6240506B2 (en) | 1987-08-28 |
Family
ID=12006925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1971382A Granted JPS57208362A (en) | 1982-02-12 | 1982-02-12 | Pressure balancing device in underwater rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57208362A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03114816U (en) * | 1990-03-09 | 1991-11-26 | ||
| US7547300B2 (en) | 2006-04-12 | 2009-06-16 | Icu Medical, Inc. | Vial adaptor for regulating pressure |
| CA3176437A1 (en) | 2011-08-18 | 2013-02-21 | Icu Medical, Inc. | Pressure-regulating vial adaptors |
| AU2013204180B2 (en) | 2012-03-22 | 2016-07-21 | Icu Medical, Inc. | Pressure-regulating vial adaptors |
| AU2014209594B2 (en) | 2013-01-23 | 2018-09-13 | Icu Medical, Inc. | Pressure-regulating vial adaptors |
| US9089475B2 (en) | 2013-01-23 | 2015-07-28 | Icu Medical, Inc. | Pressure-regulating vial adaptors |
| CN105722493B (en) | 2013-07-19 | 2019-10-11 | 伊库医学有限公司 | Pressure adjusts fluid delivery system and method |
| WO2015195844A1 (en) | 2014-06-20 | 2015-12-23 | Icu Medical, Inc. | Pressure-regulating vial adaptors |
| WO2017132588A1 (en) | 2016-01-29 | 2017-08-03 | Icu Medical, Inc. | Pressure-regulating vial adaptors |
| WO2018064206A1 (en) | 2016-09-30 | 2018-04-05 | Icu Medical, Inc. | Pressure-regulating vial access devices and methods |
-
1982
- 1982-02-12 JP JP1971382A patent/JPS57208362A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57208362A (en) | 1982-12-21 |
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