JPS56168108A - Detecting device for abrasion loss of plain bearing metal - Google Patents
Detecting device for abrasion loss of plain bearing metalInfo
- Publication number
- JPS56168108A JPS56168108A JP7237980A JP7237980A JPS56168108A JP S56168108 A JPS56168108 A JP S56168108A JP 7237980 A JP7237980 A JP 7237980A JP 7237980 A JP7237980 A JP 7237980A JP S56168108 A JPS56168108 A JP S56168108A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- bearing metal
- hole
- metal
- change
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/12—Measuring arrangements characterised by the use of fluids for measuring distance or clearance between spaced objects or spaced apertures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Arrangements Characterized By The Use Of Fluids (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
PURPOSE:To ensure continuous measurement for the abrasion loss of a sleeve bearing metal without discontinuing the operation, by supplying the pressure oil to the fluid supply hole provided to the plain bearing metal of a rotary machine and detecting a change of flow rate of fluid which is caused by the change of gap between the shaft and the metal. CONSTITUTION:The lubricating oil is supplied with a fixed level of pressure to the area between a shaft 1 and a bearing metal 3 through a hole 4 provided to the metal 3, and the flow rate of oil flowing the hole 4 is measured by a flow meter 6. At the same time, the supply pressure is monitored by a pressure gauge 7. The outputs of the meter 6 and the gauge 7 are extracted electrically to be supplied to a correcting circuit 10. Thus a correction is given to the output given from the meter 6 by an amount equivalent to the change of pressure, and a filter 11 removes the output from the circuit 10 for an amount larger than a certain level. Then the output frequency of the filter 11 is counted by a counter 12. Thus a reduction of gap around the hole 4 is measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7237980A JPS56168108A (en) | 1980-05-29 | 1980-05-29 | Detecting device for abrasion loss of plain bearing metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7237980A JPS56168108A (en) | 1980-05-29 | 1980-05-29 | Detecting device for abrasion loss of plain bearing metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56168108A true JPS56168108A (en) | 1981-12-24 |
Family
ID=13487599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7237980A Pending JPS56168108A (en) | 1980-05-29 | 1980-05-29 | Detecting device for abrasion loss of plain bearing metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56168108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021140887A1 (en) * | 2020-01-10 | 2021-07-15 | 日本精工株式会社 | Calculation method, bearing device, and spindle device for machine tool |
-
1980
- 1980-05-29 JP JP7237980A patent/JPS56168108A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021140887A1 (en) * | 2020-01-10 | 2021-07-15 | 日本精工株式会社 | Calculation method, bearing device, and spindle device for machine tool |
| JP2021110639A (en) * | 2020-01-10 | 2021-08-02 | 日本精工株式会社 | Method for calculation, bearing device, and main shaft device of machine tool |
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