JPH02143565U - - Google Patents
Info
- Publication number
- JPH02143565U JPH02143565U JP5279689U JP5279689U JPH02143565U JP H02143565 U JPH02143565 U JP H02143565U JP 5279689 U JP5279689 U JP 5279689U JP 5279689 U JP5279689 U JP 5279689U JP H02143565 U JPH02143565 U JP H02143565U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- space
- bulkhead
- partition
- auxiliary
- 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
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Housings And Mounting Of Transformers (AREA)
- Sealing Devices (AREA)
Description
第１図は本考案によるシール軸受の構成図、第
２図は従来のシール軸受の構成図、第３図は圧力
差とシール材の寿命との関係を示すグラフである
。
１……圧力隔壁、２……内部空間、３……外部
空間、４……駆動軸、７，８……シール材、９…
…補助隔壁、１０……境界空間。
FIG. 1 is a block diagram of a sealed bearing according to the present invention, FIG. 2 is a block diagram of a conventional sealed bearing, and FIG. 3 is a graph showing the relationship between pressure difference and sealing material life. DESCRIPTION OF SYMBOLS 1...Pressure bulkhead, 2...Internal space, 3...External space, 4...Drive shaft, 7, 8...Sealing material, 9...
...Auxiliary bulkhead, 10... Boundary space.
Claims (1)
せる軸シールにおいて、 圧力隔壁の少なくとも一方側に、回転軸が回転
自在に貫通する少なくともひとつの補助隔壁を設
けることにより、圧力隔壁の一方側に形成される
高圧空間と他方側に形成される低圧空間との間に
少なくともひとつの境界空間を形成し、圧力隔壁
及び補助隔壁と回転軸との間にシール材を介在さ
せるとともに高圧空間、境界空間、低圧空間の圧
力を段階的に小さく設定したことを特徴とする軸
シール。[Claims for Utility Model Registration] In a shaft seal that allows a rotary shaft to pass through the pressure bulkhead airtightly and rotatably, by providing at least one auxiliary bulkhead on at least one side of the pressure bulkhead, through which the rotary shaft rotatably passes. , at least one boundary space is formed between the high pressure space formed on one side of the pressure partition and the low pressure space formed on the other side, and a sealing material is interposed between the pressure partition and the auxiliary partition and the rotating shaft. This shaft seal is characterized in that the pressure in the high-pressure space, boundary space, and low-pressure space is gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5279689U JPH02143565U (en) | 1989-05-08 | 1989-05-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5279689U JPH02143565U (en) | 1989-05-08 | 1989-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02143565U true JPH02143565U (en) | 1990-12-05 |
Family
ID=31573409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5279689U Pending JPH02143565U (en) | 1989-05-08 | 1989-05-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02143565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018001950A (en) * | 2016-06-30 | 2018-01-11 | 公益財団法人鉄道総合技術研究所 | Damage detection system for railway vehicle hollow axle |
-
1989
- 1989-05-08 JP JP5279689U patent/JPH02143565U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018001950A (en) * | 2016-06-30 | 2018-01-11 | 公益財団法人鉄道総合技術研究所 | Damage detection system for railway vehicle hollow axle |
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