JPH0431370U - - Google Patents
Info
- Publication number
- JPH0431370U JPH0431370U JP7300090U JP7300090U JPH0431370U JP H0431370 U JPH0431370 U JP H0431370U JP 7300090 U JP7300090 U JP 7300090U JP 7300090 U JP7300090 U JP 7300090U JP H0431370 U JPH0431370 U JP H0431370U
- Authority
- JP
- Japan
- Prior art keywords
- fixing member
- rotating shaft
- bearing
- annular groove
- outer end
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図は本考案装置の断面図、第２図は第１図
矢視部の拡大図、第３図は第１図−線断面
図、第４図は従来装置の断面図である。
１０……回転軸、１０ａ……突出部、１１……
固定部材、２０……環状溝、２１……圧力空気導
入通路、２２……狭窄通路、２３……隙間。
FIG. 1 is a sectional view of the device of the present invention, FIG. 2 is an enlarged view of the section taken in the direction of the arrow in FIG. 10...Rotating shaft, 10a...Protrusion, 11...
Fixing member, 20... annular groove, 21... pressure air introduction passage, 22... narrowed passage, 23... gap.
Claims (1)
端部の外方に前記回転軸の突出部よりも微少量だ
け径の大きな貫通穴を有する固定部材を固定して
回転軸の突出部と固定部材との間に回転軸と軸受
とのクリアランスより大きな隙間を形成し、前記
固定部材に、圧力空気導入通路と連通した環状溝
と、この環状溝と前記隙間とを連通する狭窄通路
を設けたことを特徴とする回転軸のシール装置。 The rotating shaft is made to protrude from the outer end of the bearing, and a fixing member having a through hole having a diameter slightly larger than the protruding part of the rotating shaft is fixed to the outside of the outer end of the bearing, thereby forming the protruding part of the rotating shaft. A gap larger than the clearance between the rotating shaft and the bearing is formed between the fixing member and the fixing member, and the fixing member is provided with an annular groove communicating with the pressure air introduction passage and a narrow passage communicating the annular groove with the gap. A rotary shaft sealing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7300090U JPH0431370U (en) | 1990-07-11 | 1990-07-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7300090U JPH0431370U (en) | 1990-07-11 | 1990-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0431370U true JPH0431370U (en) | 1992-03-13 |
Family
ID=31611441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7300090U Pending JPH0431370U (en) | 1990-07-11 | 1990-07-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0431370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016137558A (en) * | 2015-01-29 | 2016-08-04 | 株式会社ジェイテクト | Air seal structure and spindle device under application of air seal structure |
-
1990
- 1990-07-11 JP JP7300090U patent/JPH0431370U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016137558A (en) * | 2015-01-29 | 2016-08-04 | 株式会社ジェイテクト | Air seal structure and spindle device under application of air seal structure |