JPH0285073U - - Google Patents
Info
- Publication number
- JPH0285073U JPH0285073U JP16445488U JP16445488U JPH0285073U JP H0285073 U JPH0285073 U JP H0285073U JP 16445488 U JP16445488 U JP 16445488U JP 16445488 U JP16445488 U JP 16445488U JP H0285073 U JPH0285073 U JP H0285073U
- Authority
- JP
- Japan
- Prior art keywords
- rotary shaft
- rotating shaft
- cylindrical
- casing
- magnetic material
- 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
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Description
第１図はこの考案の一実施例による回転軸のシ
ール装置を示す断面図、第２図は従来のシール装
置を示す断面図である。
図において、１はケーシング、２はポールピー
ス、４は円筒磁石、７はブツシユ、１０，１０ａ
はデプスメータ挿入穴、９０はシール手段である
。尚、図中同一符号は同一又は相当部分を示す。
FIG. 1 is a sectional view showing a rotary shaft sealing device according to an embodiment of this invention, and FIG. 2 is a sectional view showing a conventional sealing device. In the figure, 1 is a casing, 2 is a pole piece, 4 is a cylindrical magnet, 7 is a bush, 10, 10a
9 is a depth meter insertion hole, and 90 is a sealing means. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
せて設けられた円筒状の磁石、及びこの磁石の両
端部に連設された一対の円筒状のポールピース、
これら磁石及びポールピースの軸心部を貫通し、
上記ケーシングに対して軸受を介して支承された
非磁性材からなる回転軸、この回転軸に装着され
、この回転軸と共に回転する磁性材からなる円筒
状のブツシユ、このブツシユと上記ポールピース
との間に設けられた磁性流体を用いてなるシール
手段を備えたものにおいて、上記ケーシングは、
上記回転軸の径方向に貫通され、上記ブツシユの
外周面を臨み得るデプスメータ挿入穴を周方向に
少なくとも２箇所設けたものであることを特徴と
する回転軸のシール装置。 a cylindrical magnet provided within the casing with their axes substantially aligned, and a pair of cylindrical pole pieces connected to both ends of the magnet;
Penetrating the axial center of these magnets and pole pieces,
A rotating shaft made of a non-magnetic material supported by the casing via a bearing, a cylindrical bushing made of a magnetic material attached to this rotating shaft and rotating together with this rotating shaft, and a connection between this bushing and the above-mentioned pole piece. In the casing equipped with a sealing means using a magnetic fluid provided between the casings,
A sealing device for a rotary shaft, characterized in that the rotary shaft is provided with at least two depth meter insertion holes in the circumferential direction that penetrate the rotary shaft in the radial direction and can face the outer circumferential surface of the bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16445488U JPH0285073U (en) | 1988-12-21 | 1988-12-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16445488U JPH0285073U (en) | 1988-12-21 | 1988-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0285073U true JPH0285073U (en) | 1990-07-03 |
Family
ID=31450076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16445488U Pending JPH0285073U (en) | 1988-12-21 | 1988-12-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0285073U (en) |
-
1988
- 1988-12-21 JP JP16445488U patent/JPH0285073U/ja active Pending
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