JPH0165920U - - Google Patents
Info
- Publication number
- JPH0165920U JPH0165920U JP1987162353U JP16235387U JPH0165920U JP H0165920 U JPH0165920 U JP H0165920U JP 1987162353 U JP1987162353 U JP 1987162353U JP 16235387 U JP16235387 U JP 16235387U JP H0165920 U JPH0165920 U JP H0165920U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- bearing device
- herringbone
- dynamic pressure
- hydrodynamic bearing
- 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
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Description
第１図はこの考案にかかる動圧軸受装置の断面
図、第２図はこの考案にかかる動圧軸受装置の断
面図でらせん溝を二組形成した場合の実施例図で
ある。
１……受け部、２……回転軸、２Ａ……ヘリン
グボーン形動圧溝、２Ｂ，２Ｃ，２Ｄ，２Ｅ……
らせん溝、３，４，５，６……周設溝。
FIG. 1 is a cross-sectional view of a hydrodynamic bearing device according to this invention, and FIG. 2 is a cross-sectional view of a hydrodynamic bearing device according to this invention, in which two sets of helical grooves are formed. 1... Receiving part, 2... Rotating shaft, 2A... Herringbone type dynamic pressure groove, 2B, 2C, 2D, 2E...
Spiral groove, 3, 4, 5, 6...peripheral groove.
Claims (1)
にヘリングボーン形の動圧溝を形成し、該ヘリン
グボーン形動圧溝の両側に、周設された溝を介し
てらせん溝を形成する動圧軸受装置において、周
設溝を介して回転軸方向に対するらせん溝の角度
をヘリングボーン形動圧溝の回転軸方向に対する
角度より大きな角度となるようにしたことを特徴
とする動圧軸受装置。 (2) 前記周設溝及びらせん溝を交互に複数個形
成し、各周設溝を介して回転軸方向に対する各ら
せん溝の角度を、反ヘリングボーン形動圧溝側に
外側へ行くにつれて大きくなるようにしたことを
特徴とする実用新案登録請求の範囲第１項記載の
動圧軸受装置。[Claims for Utility Model Registration] (1) A herringbone-shaped dynamic pressure groove is formed on the outer periphery of the rotating shaft or the inner periphery of the receiving portion of the rotating shaft, and a herringbone-shaped dynamic pressure groove is provided on both sides of the rotating shaft. In a hydrodynamic bearing device that forms a helical groove through a groove, the angle of the helical groove with respect to the direction of the rotational axis through the circumferential groove is set to be a larger angle than the angle of the herringbone type dynamic pressure groove with respect to the direction of the rotational axis. A hydrodynamic bearing device characterized by: (2) A plurality of the circumferential grooves and helical grooves are formed alternately, and the angle of each helical groove with respect to the rotation axis direction increases as it goes outward toward the anti-herringbone dynamic pressure groove side. The hydrodynamic bearing device according to claim 1, which is characterized in that the hydrodynamic bearing device is configured to have the following characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162353U JPH0165920U (en) | 1987-10-22 | 1987-10-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987162353U JPH0165920U (en) | 1987-10-22 | 1987-10-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0165920U true JPH0165920U (en) | 1989-04-27 |
Family
ID=31446099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987162353U Pending JPH0165920U (en) | 1987-10-22 | 1987-10-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0165920U (en) |
-
1987
- 1987-10-22 JP JP1987162353U patent/JPH0165920U/ja active Pending
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