JPH053788U - Sealing device - Google Patents
Sealing deviceInfo
- Publication number
- JPH053788U JPH053788U JP5799691U JP5799691U JPH053788U JP H053788 U JPH053788 U JP H053788U JP 5799691 U JP5799691 U JP 5799691U JP 5799691 U JP5799691 U JP 5799691U JP H053788 U JPH053788 U JP H053788U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- ring groove
- radius
- corner
- sealing device
- 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
Links
Abstract
(57)【要約】
【目的】 封止構成要素体にＯリング溝を設け、そのＯ
リング溝にＯリングをおさめた封止装置において、Ｏリ
ング溝に発生する応力集中を緩和するとともに、Ｏリン
グの充填率を適切な値に保つ。
【構成】 圧力によりＯリング溝１ｂに発生する応力が
集中する側の隅角部Ａの円弧状面Ａの半径を大きくし、
応力が集中しない反対側の隅角部Ｂの円弧状面の半径
を、Ｏリング溝の両側の円弧状面の半径を互いに等しく
した場合のＯリングの充填率とほぼ同等の充填率となる
ように小さくする。
(57) [Abstract] [Purpose] The O-ring groove is provided in the sealing component body and
In a sealing device in which an O-ring is placed in the ring groove, stress concentration generated in the O-ring groove is relaxed and the filling rate of the O-ring is maintained at an appropriate value. [Arrangement] The radius of the arcuate surface A of the corner A on the side where the stress generated in the O-ring groove 1b is concentrated by pressure is increased,
The radius of the arcuate surface of the corner B on the opposite side where stress is not concentrated is approximately the same as that of the O-ring when the radii of the arcuate surfaces on both sides of the O-ring groove are equal. Make it smaller.
Description
【０００１】[0001]
この考案は、内圧または外圧の流体をＯリングにより封止する封止装置に関す る。 The present invention relates to a sealing device that seals an internal or external fluid with an O-ring.
【０００２】[0002]
つぎに、配管内の圧力流体を封止する従来の封止装置の一例を図２および図３ により説明する。 Next, an example of a conventional sealing device for sealing the pressure fluid in the pipe will be described with reference to FIGS. 2 and 3.
【０００３】 配管１のフランジ１ａは、分割抑止体２を介してボルト３により相手部材４に 固定されている。すなわち、配管１のフランジ１ａの端面は相手部材４に密着し ている。フランジ１ａにはＯリング溝１ｂが設けられており、その中には配管１ 内の圧力流体を封止するＯリング５がおさめられている。Ｏリング溝１ｂの両方 の隅角部には、同じ半径の円弧状面が形成されている。The flange 1 a of the pipe 1 is fixed to the mating member 4 by the bolt 3 via the division suppressing body 2. That is, the end surface of the flange 1 a of the pipe 1 is in close contact with the mating member 4. An O-ring groove 1b is provided in the flange 1a, and an O-ring 5 for sealing the pressure fluid in the pipe 1 is housed therein. Arc-shaped surfaces having the same radius are formed at both corners of the O-ring groove 1b.
【０００４】 図３は、ＳＡＥ Ｓｔａｎｄａｒｄ Ｊ１０１９による標準Ｏリング溝を示し 、両側の隅角部Ａ、Ｂの円弧状面の半径は０．７６mm、溝幅Ｗは４．１mmである 。このＯリング溝をそなえた図２に示す封止装置で内圧５２５kgf ／cm2 をかけ ると、ＦＥＭ解析によれば、隅角部Ａに３９．４kgf ／mm2 の応力集中が発生す る。Ｏリング溝におさめたＯリングの外径は３．５３mmである。FIG. 3 shows a standard O-ring groove according to SAE Standard J1019, in which the radius of the arcuate surface of the corner portions A and B on both sides is 0.76 mm and the groove width W is 4.1 mm. When an internal pressure of 525 kgf / cm 2 is applied with the sealing device shown in FIG. 2 having this O-ring groove, a stress concentration of 39.4 kgf / mm 2 occurs at the corner A according to FEM analysis. The outer diameter of the O-ring in the O-ring groove is 3.53 mm.
【０００５】[0005]
従来の封止装置では、圧力により発生する応力の大きさにかかわらずＯリング 溝１ｂの両側の隅角部Ａ、Ｂの円弧状面の半径を等しくしているため、応力集中 により構成要素の信頼性が低下する。応力集中を低減するために、両側の隅角部 Ａ、Ｂの円弧状面の半径をともに大きくすると、Ｏリングの充填率が大きくなり 、Ｏリングの信頼性が低下する。 In the conventional sealing device, the radius of the arcuate surface of the corners A and B on both sides of the O-ring groove 1b is made equal regardless of the magnitude of the stress generated by the pressure. Reliability is reduced. If both the radiuses of the arcuate surfaces of the corner portions A and B on both sides are increased in order to reduce the stress concentration, the filling rate of the O-ring increases and the reliability of the O-ring decreases.
【０００６】 この考案は、前記にかんがみてなされたもので、Ｏリング溝に発生する応力集 中を容易に緩和し、かつ、Ｏリングの充填率を適切な値に保つことができる封止 装置を提供することを目的とする。The present invention has been made in view of the above, and it is possible to easily relieve the stress concentration generated in the O-ring groove and to keep the filling rate of the O-ring at an appropriate value. The purpose is to provide.
【０００７】[0007]
上記の目的を達成するため、この考案は、封止構成要素体にＯリング溝を設け 、そのＯリング溝にＯリングをおさめた封止装置において、圧力によりＯリング 溝に発生する応力が集中する側の隅角部の円弧状面の半径を大きくし、応力が集 中しない反対側の隅角部の円弧状面の半径を、Ｏリング溝の両側の隅角部の円弧 状面の半径を互いに等しくした場合のＯリングの充填率とほぼ同等の充填率とな るように小さくしたことを特徴とする。 In order to achieve the above object, the present invention provides a sealing device in which an O-ring groove is provided in a sealing component body, and the O-ring is placed in the O-ring groove, so that stress generated in the O-ring groove due to pressure is concentrated. The radius of the arcuate surface of the corner of the O-ring groove, and increase the radius of the arcuate surface of the corner of the O-ring groove. It is characterized in that the O-rings have a filling rate substantially equal to that of the O-rings.
【０００８】[0008]
Ｏリング溝における応力集中の発生する側の隅角部の円弧状面の半径を大きく し、応力集中の発生しない反対側の隅角部の円弧状面の半径を小さくしたことに より、応力集中が緩和され、Ｏリングの充填率が適切な値になる。 Stress concentration is increased by increasing the radius of the arcuate surface of the corner of the O-ring groove where stress concentration occurs and decreasing the radius of the arcuate surface of the opposite corner where stress concentration does not occur. Is relaxed, and the filling rate of the O-ring becomes an appropriate value.
【０００９】[0009]
以下、この考案の一実施例を図１により説明する。 An embodiment of the present invention will be described below with reference to FIG.
【００１０】 この実施例のＯリング溝１ｂの溝幅Ｗ、深さ、直径は図３のものと同じである 。応力集中が発生する側の隅角部Ａの円弧状面の半径は１．２mmであり、反対側 の隅角部Ｂの円弧状面の半径は０．４mm である。この実施例で、図３のものと 同様に５２５kgf ／cm2 の内圧をかけると、ＦＥＭ解析によれば隅角部Ａの応力 集中は３２．１kgf ／mm2 となり、図３のものにくらべて約２０％低減される。 円弧状面の半径を０．４mmと小さくしたことによる、反対側の隅角部Ｂにおける 応力集中は認められない。また、Ｏリング５の外径は図３のものと同じであり、 Ｏリング５の充填率は図３のものと同様で、約８４％である。The groove width W, the depth and the diameter of the O-ring groove 1b in this embodiment are the same as those in FIG. The radius of the arcuate surface of the corner A on the side where stress concentration occurs is 1.2 mm, and the radius of the arcuate surface of the corner B on the opposite side is 0.4 mm. In this example, when an internal pressure of 525 kgf / cm 2 was applied as in the case of FIG. 3, the stress concentration in the corner portion A was 32.1 kgf / mm 2 according to FEM analysis, which is higher than that of FIG. It is reduced by about 20%. No stress concentration is observed at the corner B on the opposite side due to the radius of the arcuate surface being reduced to 0.4 mm. The outer diameter of the O-ring 5 is the same as that of FIG. 3, and the filling rate of the O-ring 5 is similar to that of FIG. 3, which is about 84%.
【００１１】 なお、実施例として内圧がかかる封止装置を挙げたが、この考案は外圧がかか る封止装置にも適用することができる。Although the sealing device to which an internal pressure is applied has been described as an example, the present invention can be applied to a sealing device to which an external pressure is applied.
【００１２】[0012]
以上説明したように、この考案によれば、Ｏリング溝に発生する応力集中を容 易に緩和し、封止構成要素体の信頼性を向上することができるとともに、Ｏリン グの充填率を適切な値に保ち、Ｏリングの信頼性を維持することができる。 As described above, according to the present invention, the stress concentration generated in the O-ring groove can be easily alleviated, the reliability of the sealing component body can be improved, and the filling rate of the O-ring can be improved. It can be maintained at an appropriate value and the reliability of the O-ring can be maintained.
【図１】この考案の一実施例を示す断面側面図、FIG. 1 is a sectional side view showing an embodiment of the present invention,
【図２】従来の封止装置の一例を示す断面図、FIG. 2 is a cross-sectional view showing an example of a conventional sealing device,
【図３】図２におけるＯリング溝の拡大図である。FIG. 3 is an enlarged view of an O-ring groove in FIG.
１ 配管 １ｂ Ｏリング溝 Ａ 隅角部 Ｂ 隅角部 ２ 分割抑止体 ３ ボルト ４ 相手部材 1 Piping 1b O-ring groove A Corner corner B Corner corner 2 Split suppression body 3 Bolt 4 Counterpart member
Claims (1)
のＯリング溝にＯリングをおさめた封止装置において、
圧力によりＯリング溝に発生する応力が集中する側の隅
角部の円弧状面の半径を大きくし、応力が集中しない反
対側の隅角部の円弧状面の半径を、Ｏリング溝の両側の
隅角部の円弧状面の半径を互いに等しくした場合のＯリ
ングの充填率とほぼ同等の充填率となるように小さくし
たことを特徴とする封止装置。[Claims for utility model registration] 1. A sealing device in which an O-ring groove is provided in a sealing component body, and an O-ring is placed in the O-ring groove.
Increase the radius of the arc-shaped surface of the corner portion on the side where stress is generated in the O-ring groove due to pressure concentration, and set the radius of the arc-shaped surface of the opposite corner portion where stress is not concentrated on both sides of the O-ring groove. The sealing device is characterized in that the radii of the arcuate surfaces of the corners are made smaller to have a filling rate substantially equal to the filling rate of the O-ring when the radii of the arcuate surfaces are made equal to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5799691U JP2545995Y2 (en) | 1991-06-28 | 1991-06-28 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5799691U JP2545995Y2 (en) | 1991-06-28 | 1991-06-28 | Sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH053788U true JPH053788U (en) | 1993-01-22 |
| JP2545995Y2 JP2545995Y2 (en) | 1997-08-27 |
Family
ID=13071620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5799691U Expired - Fee Related JP2545995Y2 (en) | 1991-06-28 | 1991-06-28 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2545995Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005273858A (en) * | 2004-03-26 | 2005-10-06 | Nippon Futsuso Kogyo Kk | Structure fitted with o-ring groove |
| JP2006038051A (en) * | 2004-07-26 | 2006-02-09 | Daikin Ind Ltd | Elastic seal member |
| JP2011031364A (en) * | 2009-08-05 | 2011-02-17 | Denso Wave Inc | Robot arm coupling device |
-
1991
- 1991-06-28 JP JP5799691U patent/JP2545995Y2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005273858A (en) * | 2004-03-26 | 2005-10-06 | Nippon Futsuso Kogyo Kk | Structure fitted with o-ring groove |
| JP2006038051A (en) * | 2004-07-26 | 2006-02-09 | Daikin Ind Ltd | Elastic seal member |
| JP2011031364A (en) * | 2009-08-05 | 2011-02-17 | Denso Wave Inc | Robot arm coupling device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2545995Y2 (en) | 1997-08-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |