JPS55107116A - Method for protection of pneumatic bearing against damage - Google Patents
Method for protection of pneumatic bearing against damageInfo
- Publication number
- JPS55107116A JPS55107116A JP1333979A JP1333979A JPS55107116A JP S55107116 A JPS55107116 A JP S55107116A JP 1333979 A JP1333979 A JP 1333979A JP 1333979 A JP1333979 A JP 1333979A JP S55107116 A JPS55107116 A JP S55107116A
- Authority
- JP
- Japan
- Prior art keywords
- gap
- lubricating oil
- bearing
- pneumatic bearing
- spacing
- 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
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
PURPOSE: To prevent damage by a method wherein the spacing between a rotary shaft and a pneumatic bearing is detected, and a highpressure lubricant is injected into the gap when a change has occurred in the detection signal.
CONSTITUTION: Displacement of bearing spacing is monitored by a fine displacement meter 4. With the spacing decreased to below 5μ, and electrical output of abnormal signal generated by the meter 4 opens a solenoid valve 5, so that lubricating oil stored in an accumulator 6 is rapidly injected into the gap between a pneumatic bearing 2 and a rotary shaft 1. Such filling of the gap with lubricating oil protects the bearing against damage. When the abnormal condition has disappeared, the abnormal signal from the meter 4 also disappears, so that the valve 5 closes, supply of lubricating oil is stopped, and the lubricating oil once fed into the gap is purged by air of the pneumatic bearing, establishing the original condition.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1333979A JPS55107116A (en) | 1979-02-09 | 1979-02-09 | Method for protection of pneumatic bearing against damage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1333979A JPS55107116A (en) | 1979-02-09 | 1979-02-09 | Method for protection of pneumatic bearing against damage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107116A true JPS55107116A (en) | 1980-08-16 |
Family
ID=11830359
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1333979A Pending JPS55107116A (en) | 1979-02-09 | 1979-02-09 | Method for protection of pneumatic bearing against damage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107116A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5980520A (en) * | 1982-10-27 | 1984-05-10 | Canon Inc | Fluid bearing control method |
-
1979
- 1979-02-09 JP JP1333979A patent/JPS55107116A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5980520A (en) * | 1982-10-27 | 1984-05-10 | Canon Inc | Fluid bearing control method |
JPH0228733B2 (en) * | 1982-10-27 | 1990-06-26 | Canon Kk |
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