JPS62106069U - - Google Patents
Info
- Publication number
- JPS62106069U JPS62106069U JP19742385U JP19742385U JPS62106069U JP S62106069 U JPS62106069 U JP S62106069U JP 19742385 U JP19742385 U JP 19742385U JP 19742385 U JP19742385 U JP 19742385U JP S62106069 U JPS62106069 U JP S62106069U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- sealing
- sealing device
- planar contact
- casing
- 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
- 238000007789 sealing Methods 0.000 claims description 11
- 239000011553 magnetic fluid Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Landscapes
- Mechanical Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Description
第１図及び第２図は本考案の一実施例を示す軸
封装置の異なつた作動状態の要部断面図、第３図
は従来の立形ポンプの側断面図、第４図及び第５
図は従来のメカニカルシール及び磁性流体シール
のそれぞれの側断面図である。
２……吐出エルボ、３……ポンプ主軸、４１…
…固定環、４３……回転環、４５……摺動面、４
７……回り止めピン、４８……永久磁石、５１…
…磁性流体。
1 and 2 are sectional views of main parts of a shaft sealing device showing an embodiment of the present invention in different operating states, FIG. 3 is a side sectional view of a conventional vertical pump, and FIGS. 4 and 5
The figures are side sectional views of a conventional mechanical seal and a conventional magnetic fluid seal. 2...Discharge elbow, 3...Pump main shaft, 41...
... Fixed ring, 43 ... Rotating ring, 45 ... Sliding surface, 4
7... Rotating pin, 48... Permanent magnet, 51...
...Magnetic fluid.
Claims (1)
軸に羽根車等の回転体を取付けた水力機械におい
て、駆動軸のケーシング貫通部に設ける軸封装置
を、メカニカルシールのような平面接触によるシ
ール機構と、磁性流体シールとを、平面接触部に
磁性流体シールを形成するように組合わせて構成
し、軸封部が正圧及び負圧を繰り返えす運転状態
においても外部から軸封部へ注水することなしに
確実にシールできるようにしたことを特徴とする
軸封装置。 ２ 前記平面接触によるシール機構の固定側部材
に、永久磁石及び磁性流体供給孔を含む磁性流体
シール部材が設けられている実用新案登録請求の
範囲第１項記載の軸封装置。 ３ 前記平面接触によるシール機構の回転側部材
は、ケーシング室内の圧力バランスによつて軸方
向に変位するように構成されている実用新案登録
請求の範囲第１項記載の軸封装置。[Scope of Claim for Utility Model Registration] 1. In a hydraulic machine in which a rotating body such as an impeller is attached to a drive shaft rotatably supported within a casing, a shaft sealing device provided in the casing penetration part of the drive shaft is a mechanical seal. A sealing mechanism based on planar contact such as the one shown in FIG. A shaft sealing device characterized in that it is capable of reliably sealing without injecting water into the shaft sealing portion from the outside. 2. The shaft sealing device according to claim 1, wherein the fixed side member of the planar contact sealing mechanism is provided with a magnetic fluid sealing member including a permanent magnet and a magnetic fluid supply hole. 3. The shaft sealing device according to claim 1, wherein the rotating member of the planar contact sealing mechanism is configured to be displaced in the axial direction depending on the pressure balance within the casing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19742385U JPH0128369Y2 (en) | 1985-12-24 | 1985-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19742385U JPH0128369Y2 (en) | 1985-12-24 | 1985-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62106069U true JPS62106069U (en) | 1987-07-07 |
| JPH0128369Y2 JPH0128369Y2 (en) | 1989-08-29 |
Family
ID=31157146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19742385U Expired JPH0128369Y2 (en) | 1985-12-24 | 1985-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0128369Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279331A (en) * | 2014-03-12 | 2015-01-14 | 赵忠波 | Oil seal mechanism |
-
1985
- 1985-12-24 JP JP19742385U patent/JPH0128369Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279331A (en) * | 2014-03-12 | 2015-01-14 | 赵忠波 | Oil seal mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0128369Y2 (en) | 1989-08-29 |
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