JPS6432917U - - Google Patents
Info
- Publication number
- JPS6432917U JPS6432917U JP12748587U JP12748587U JPS6432917U JP S6432917 U JPS6432917 U JP S6432917U JP 12748587 U JP12748587 U JP 12748587U JP 12748587 U JP12748587 U JP 12748587U JP S6432917 U JPS6432917 U JP S6432917U
- Authority
- JP
- Japan
- Prior art keywords
- preload
- rolling bearing
- rear rolling
- applying
- fixed position
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
- F16C25/06—Ball or roller bearings
- F16C25/08—Ball or roller bearings self-adjusting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
- Support Of The Bearing (AREA)
Description
第１図は本考案のスピンドルユニツトの構造を
示す断面図であり、第２図は本考案のスピンドル
ユニツトの予圧機構の部分図である。
〔主要部分の符号の説明〕、１：ハウジング、
２：主軸、３，４：ころがり軸受、５：軸受スリ
ーブ、６：予圧ばね、７：油圧ピストン、１１：
定位置予圧調整間座、１３：バイアスばね。
FIG. 1 is a sectional view showing the structure of the spindle unit of the present invention, and FIG. 2 is a partial view of the preload mechanism of the spindle unit of the present invention. [Explanation of symbols of main parts], 1: Housing,
2: Main shaft, 3, 4: Rolling bearing, 5: Bearing sleeve, 6: Preload spring, 7: Hydraulic piston, 11:
Fixed position preload adjustment spacer, 13: Bias spring.
Claims (1)
がり軸受、他端を後部ころがり軸受を嵌合した軸
受スリーブを介して支持される主軸と、前記軸受
スリーブを軸方向に付勢して前記後部ころがり軸
受に予圧を付加する予圧手段とを有するスピンド
ルユニツトにおいて、前記軸受スリーブを軸方向
に付勢し前記後部ころがり軸受に定圧予圧を付加
する予圧ばねと、前記軸受スリーブを定位置予圧
調整間座を介して軸方向定位置まで押圧し前記後
部ころがり軸受に定位置予圧を付加する油圧ピス
トンと、前記定位置予圧調整間座を前記油圧ピス
トンの付勢方向に対して逆の方向に付勢するバイ
アスばねとを備えたことを特徴とするスピンドル
ユニツト。 a housing; a main shaft supported via a bearing sleeve having one end fitted to the housing with a front rolling bearing and the other end fitted with a rear rolling bearing; and axially biasing the bearing sleeve to engage the rear rolling bearing. A spindle unit having a preload means for applying a preload, a preload spring for urging the bearing sleeve in the axial direction and applying a constant pressure preload to the rear rolling bearing, and a preload means for applying a preload to the rear rolling bearing; a hydraulic piston that presses the rear rolling bearing to a fixed position in the axial direction and applies a fixed position preload to the rear rolling bearing; and a bias spring that biases the fixed position preload adjustment spacer in a direction opposite to the biasing direction of the hydraulic piston. A spindle unit characterized by being equipped with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12748587U JPH0453457Y2 (en) | 1987-08-24 | 1987-08-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12748587U JPH0453457Y2 (en) | 1987-08-24 | 1987-08-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6432917U true JPS6432917U (en) | 1989-03-01 |
| JPH0453457Y2 JPH0453457Y2 (en) | 1992-12-16 |
Family
ID=31379963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12748587U Expired JPH0453457Y2 (en) | 1987-08-24 | 1987-08-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453457Y2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379205A (en) * | 1989-08-17 | 1991-04-04 | Nippon Seiko Kk | Variable preload spindle |
| JP2012045638A (en) * | 2010-08-24 | 2012-03-08 | Nsk Ltd | Pre-load adjustable spindle |
| JP2012106324A (en) * | 2010-11-19 | 2012-06-07 | Nsk Ltd | Pre-load variable type spindle |
| EP3020507A4 (en) * | 2013-07-12 | 2017-04-19 | Echo Tech Co., Ltd. | Bearing variable preload system utilizing gap between strokes for preload adjustment and elastic deformation of sealing member |
| JPWO2024090498A1 (en) * | 2022-10-28 | 2024-05-02 | ||
| WO2024090499A1 (en) * | 2022-10-28 | 2024-05-02 | 日本精工株式会社 | Rotation support device, and support mechanism position adjustment mechanism of shaft support device |
-
1987
- 1987-08-24 JP JP12748587U patent/JPH0453457Y2/ja not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0379205A (en) * | 1989-08-17 | 1991-04-04 | Nippon Seiko Kk | Variable preload spindle |
| JP2012045638A (en) * | 2010-08-24 | 2012-03-08 | Nsk Ltd | Pre-load adjustable spindle |
| JP2012106324A (en) * | 2010-11-19 | 2012-06-07 | Nsk Ltd | Pre-load variable type spindle |
| EP3020507A4 (en) * | 2013-07-12 | 2017-04-19 | Echo Tech Co., Ltd. | Bearing variable preload system utilizing gap between strokes for preload adjustment and elastic deformation of sealing member |
| JPWO2024090498A1 (en) * | 2022-10-28 | 2024-05-02 | ||
| WO2024090499A1 (en) * | 2022-10-28 | 2024-05-02 | 日本精工株式会社 | Rotation support device, and support mechanism position adjustment mechanism of shaft support device |
| JPWO2024090499A1 (en) * | 2022-10-28 | 2024-05-02 | ||
| WO2024090498A1 (en) * | 2022-10-28 | 2024-05-02 | 日本精工株式会社 | Rotation assistance device, and assistance mechanism position adjustment mechanism for shaft support device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453457Y2 (en) | 1992-12-16 |