JPH0444517U - - Google Patents
Info
- Publication number
- JPH0444517U JPH0444517U JP8591290U JP8591290U JPH0444517U JP H0444517 U JPH0444517 U JP H0444517U JP 8591290 U JP8591290 U JP 8591290U JP 8591290 U JP8591290 U JP 8591290U JP H0444517 U JPH0444517 U JP H0444517U
- Authority
- JP
- Japan
- Prior art keywords
- spindle shaft
- spindle
- covers
- motor unit
- shield
- 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
- 230000002706 hydrostatic effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図は従来の静圧回転軸受の一例を示す断面図であ
る。
１，２１……スピンドルヘツドフランジ、２，
２２……シヤフト、３，２３……外筒、４，２４
……ロアプレート、５，２５……フランジ、６，
２６……空気供給穴、７，２７……静圧回転軸受
本体、８，２８……モータシヤフト、９，２９…
…ロータ、１０，３０……巻線、１１，３１……
モータハウジング、１２，３２……モータユニツ
ト、１３……アツパシールド、１４……溝、１５
……シールドハウジング、１６……突起。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view showing an example of a conventional hydrostatic rotation bearing. 1, 21...Spindle head flange, 2,
22... Shaft, 3, 23... Outer cylinder, 4, 24
... lower plate, 5, 25 ... flange, 6,
26... Air supply hole, 7, 27... Static pressure rotation bearing body, 8, 28... Motor shaft, 9, 29...
...Rotor, 10,30...Winding, 11,31...
Motor housing, 12, 32... Motor unit, 13... Top shield, 14... Groove, 15
...Shield housing, 16...Protrusion.
Claims (1)
と、前記スピンドルシヤフトの上端に設けたスピ
ンドルヘツドフランジと、前記スピンドルシヤフ
トの下端に連結したモータユニツトと、前記スピ
ンドルヘツドフランジの上面および側面を覆いか
つ周辺部の下面に同心円状の複数個の溝を有しシ
ールド材料で形成したアツパシールドと、前記静
圧回転軸受本体および前記モータユニツトの外周
を覆いかつ円環状の上面に前記アツパシールドの
前記同心円状の複数個の溝に微小の間隙を保つて
嵌入する同心円状の複数個の突起を有しシールド
材料で形成したシールドハウジングとを備えるこ
とを特徴とする静圧回転軸受。 A hydrostatic rotary bearing main body having a spindle shaft, a spindle head flange provided at the upper end of the spindle shaft, a motor unit connected to the lower end of the spindle shaft, and a motor unit that covers the upper and side surfaces of the spindle head flange and covers the peripheral portion thereof. A top shield formed of a shielding material and having a plurality of concentric grooves on its lower surface; A hydrostatic rotary bearing comprising: a shield housing made of a shield material and having a plurality of concentric protrusions that fit into a groove with a small gap therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8591290U JPH0444517U (en) | 1990-08-15 | 1990-08-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8591290U JPH0444517U (en) | 1990-08-15 | 1990-08-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444517U true JPH0444517U (en) | 1992-04-15 |
Family
ID=31817312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8591290U Pending JPH0444517U (en) | 1990-08-15 | 1990-08-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444517U (en) |
-
1990
- 1990-08-15 JP JP8591290U patent/JPH0444517U/ja active Pending