JPS63175317U - - Google Patents
Info
- Publication number
- JPS63175317U JPS63175317U JP15785186U JP15785186U JPS63175317U JP S63175317 U JPS63175317 U JP S63175317U JP 15785186 U JP15785186 U JP 15785186U JP 15785186 U JP15785186 U JP 15785186U JP S63175317 U JPS63175317 U JP S63175317U
- Authority
- JP
- Japan
- Prior art keywords
- contact surface
- bolt
- shaft
- disk
- tapered
- 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
- 230000007423 decrease Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Non-Positive Displacement Air Blowers (AREA)
Description
第１図は本考案ボルト締結構造の一実施例を示
す部分縦断面図、第２図、第３図はそれぞれ従来
のボルト締結構造の部分縦断面図、第４図は回転
体の曲げ剛性の説明図である。
１……円板状体、１ａ……いんろう部、１ｂ…
…円筒状突出部、１ｃ……ボルト孔、１ｄ……ボ
ルト座面の座ぐり、１ｆ……当接面、Ａ……テー
パー、２……軸、２ａ……いんろう部、２ｂ……
ねじ部、２ｃ……フランジ部、２ｄ……切欠き、
２ｅ……切欠き、２ｆ……当接面、３……ナツト
、４……ボルト。
Fig. 1 is a partial vertical cross-sectional view showing one embodiment of the bolt fastening structure of the present invention, Figs. 2 and 3 are partial longitudinal cross-sectional views of conventional bolt fastening structures, and Fig. 4 shows the bending rigidity of the rotating body. It is an explanatory diagram. 1... Disc-shaped body, 1a... In-rotating part, 1b...
...Cylindrical protrusion, 1c...Bolt hole, 1d...Counterbore on bolt seating surface, 1f...Abutment surface, A...Taper, 2...Shaft, 2a...Fitting part, 2b...
Threaded part, 2c...flange part, 2d...notch,
2e... Notch, 2f... Contact surface, 3... Nut, 4... Bolt.
Claims (1)
に外周面が軸側に向かつて径が小さくなるテーパ
ーに形成された円筒状突出部を設け、一方軸の端
部に上記円板状体当接面に対向する当接面を有す
るフランジ部を形成するとともに同当接面の軸心
寄りを円筒状に２段に切欠き、その２段切欠き間
に上記円板状体テーパー部と対応するテーパー部
を締結時に面圧を持つように嵌合代を設けて形成
して、上記円筒状突出部とフランジ部とをテーパ
ー部を合わせて嵌合し、かつ円板状体当接面の複
数のボルト孔にボルト取付け座面の有効厚さがボ
ルト頭部高さ以下になるように座ぐりを施して、
上記当接面へボルトを螺着したことを特徴とする
回転体の円板状体と軸とのボルト締結構造。 A cylindrical protrusion is provided near the inner periphery of the contact surface with the shaft of the disk-shaped body with a central hole, and the outer circumferential surface is tapered so that the diameter decreases toward the shaft side, and one end of the shaft is provided with the above-mentioned A flange portion having a contact surface opposite to the contact surface of the disk-shaped body is formed, and a cylindrical two-step notch is formed near the axis of the contact surface, and the disk-shaped member is provided between the two-step notches. A tapered portion corresponding to the body tapered portion is formed with a fitting allowance so as to have surface pressure when fastened, and the cylindrical protrusion and the flange portion are fitted with the tapered portions aligned, and a disc-shaped Counterbore the multiple bolt holes on the body contact surface so that the effective thickness of the bolt mounting seat is less than the height of the bolt head.
A bolt fastening structure between a disc-shaped body of a rotating body and a shaft, characterized in that a bolt is screwed onto the contact surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15785186U JPS63175317U (en) | 1986-10-15 | 1986-10-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15785186U JPS63175317U (en) | 1986-10-15 | 1986-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63175317U true JPS63175317U (en) | 1988-11-14 |
Family
ID=31080787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15785186U Pending JPS63175317U (en) | 1986-10-15 | 1986-10-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63175317U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012172990A1 (en) * | 2011-06-16 | 2012-12-20 | エドワーズ株式会社 | Rotor and vacuum pump |
-
1986
- 1986-10-15 JP JP15785186U patent/JPS63175317U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012172990A1 (en) * | 2011-06-16 | 2012-12-20 | エドワーズ株式会社 | Rotor and vacuum pump |
| JPWO2012172990A1 (en) * | 2011-06-16 | 2015-02-23 | エドワーズ株式会社 | Rotor and vacuum pump |