JPS5619521A - Rotating head assembly - Google Patents
Rotating head assemblyInfo
- Publication number
- JPS5619521A JPS5619521A JP9537879A JP9537879A JPS5619521A JP S5619521 A JPS5619521 A JP S5619521A JP 9537879 A JP9537879 A JP 9537879A JP 9537879 A JP9537879 A JP 9537879A JP S5619521 A JPS5619521 A JP S5619521A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- shaft
- high accuracy
- motor
- oil film
- 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.)
- Granted
Links
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
PURPOSE: To enable the assembling of high accuracy, by constituting that the sleeve can relatively be movable toward the shaft direction with the shaft in fixed state at sealing of lubrication oil.
CONSTITUTION: The construction of cylinder by fluid bearing is that the rotating sleeve 23 rotationably coupled with the center shaft 30 the one end of which is fixed to the lower housing 20 via lubrication oil film is rotated with the motor, and the function of revolution with high accuracy featured with fluid lubrication is succeeded. Further, fluid bearing is formed at the location placed inside the upper and lower cylinders 17, 19, rotor 28 of motor and stator 27, allowig to achieve sufficiently greater oil film rigidity against radial weight and compact constitution. At the upper end of the rotating sleeve 23, the upper cylinder 17 is provided, enabling the dismounting of the upper cylinder 17 simply from the upper part at the replacement of the head 2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9537879A JPS5619521A (en) | 1979-07-26 | 1979-07-26 | Rotating head assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9537879A JPS5619521A (en) | 1979-07-26 | 1979-07-26 | Rotating head assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5619521A true JPS5619521A (en) | 1981-02-24 |
JPS613006B2 JPS613006B2 (en) | 1986-01-29 |
Family
ID=14135973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9537879A Granted JPS5619521A (en) | 1979-07-26 | 1979-07-26 | Rotating head assembly |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5619521A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109715A (en) * | 1981-12-21 | 1983-06-30 | Matsushita Electric Ind Co Ltd | Fluid bearing device |
JPS58180829A (en) * | 1982-04-15 | 1983-10-22 | Matsushita Electric Ind Co Ltd | Hydraulic bearing device |
JPS58172115U (en) * | 1982-05-14 | 1983-11-17 | 日本精工株式会社 | Dynamic pressure type gas bearing device |
US4706143A (en) * | 1982-09-30 | 1987-11-10 | Matsushita Electric Industrial Co., Ltd. | Rotary head cylinder device with fluid bearing |
-
1979
- 1979-07-26 JP JP9537879A patent/JPS5619521A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58109715A (en) * | 1981-12-21 | 1983-06-30 | Matsushita Electric Ind Co Ltd | Fluid bearing device |
JPS6157489B2 (en) * | 1981-12-21 | 1986-12-06 | Matsushita Electric Ind Co Ltd | |
JPS58180829A (en) * | 1982-04-15 | 1983-10-22 | Matsushita Electric Ind Co Ltd | Hydraulic bearing device |
JPS58172115U (en) * | 1982-05-14 | 1983-11-17 | 日本精工株式会社 | Dynamic pressure type gas bearing device |
JPS631053Y2 (en) * | 1982-05-14 | 1988-01-12 | ||
US4706143A (en) * | 1982-09-30 | 1987-11-10 | Matsushita Electric Industrial Co., Ltd. | Rotary head cylinder device with fluid bearing |
Also Published As
Publication number | Publication date |
---|---|
JPS613006B2 (en) | 1986-01-29 |
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