JPH024989U - - Google Patents
Info
- Publication number
- JPH024989U JPH024989U JP8425188U JP8425188U JPH024989U JP H024989 U JPH024989 U JP H024989U JP 8425188 U JP8425188 U JP 8425188U JP 8425188 U JP8425188 U JP 8425188U JP H024989 U JPH024989 U JP H024989U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- bearing
- rotating shaft
- end cover
- shaft
- 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 2
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims 1
- 229910000423 chromium oxide Inorganic materials 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
Description
第１図はこの考案の一実施例を示す部分断面図
、第２図は従来の真空ポンプを示す断面図である
。
図中、２は回転軸、４は端カバー、５ａ，５ｂ
は軸シール、６は軸受、７は酸化クロム（Ｃｒ２
Ｏ３）である。なお、図中、同一符号は同一また
は相当部分を示す。
FIG. 1 is a partial sectional view showing an embodiment of this invention, and FIG. 2 is a sectional view showing a conventional vacuum pump. In the figure, 2 is a rotating shaft, 4 is an end cover, 5a, 5b
is a shaft seal, 6 is a bearing, 7 is chromium oxide ( Cr2
O 3 ). In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
する筒状のシリンダと、このシリンダの一端に設
けられ、上記ロータの回転軸が貫通される端カバ
ーと、この端カバーに嵌合され、上記回転軸を回
転自在に支承する軸受、この軸受よりも反ロータ
側にて上記端カバーに嵌合され、上記回転軸の全
周と接して上記端カバーと上記回転軸との間を封
止するシール部材を備え、上記回転軸外周におけ
る上記シール部材との接触部に膜厚０．１〜０．
３mmの範囲で酸化クロムを溶射コーテイングした
ことを特徴とする油回転真空ポンプの軸封装置。 a rotor supporting a vane; a cylindrical cylinder surrounding the rotor; an end cover provided at one end of the cylinder through which the rotary shaft of the rotor passes; a bearing that rotatably supports the bearing, and a sealing member that is fitted to the end cover on the side opposite to the rotor from the bearing, contacts the entire circumference of the rotating shaft, and seals between the end cover and the rotating shaft. , and a film thickness of 0.1 to 0.1 at the contact portion with the seal member on the outer periphery of the rotating shaft.
A shaft sealing device for an oil rotary vacuum pump characterized by a thermal spray coating of chromium oxide within a 3 mm range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8425188U JPH024989U (en) | 1988-06-24 | 1988-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8425188U JPH024989U (en) | 1988-06-24 | 1988-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH024989U true JPH024989U (en) | 1990-01-12 |
Family
ID=31308948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8425188U Pending JPH024989U (en) | 1988-06-24 | 1988-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH024989U (en) |
-
1988
- 1988-06-24 JP JP8425188U patent/JPH024989U/ja active Pending
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