JPH02139454U - - Google Patents
Info
- Publication number
- JPH02139454U JPH02139454U JP4817589U JP4817589U JPH02139454U JP H02139454 U JPH02139454 U JP H02139454U JP 4817589 U JP4817589 U JP 4817589U JP 4817589 U JP4817589 U JP 4817589U JP H02139454 U JPH02139454 U JP H02139454U
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- motor
- sealing device
- shaft sleeve
- shaft sealing
- 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
- 238000007789 sealing Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims 4
- 239000013013 elastic material Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Description
第１図はこの考案の軸封装置の側断面図、第２
図は軸スリーブの平面図、第３図は第２図のＡ−
Ａ線に沿う断面図、第４図、第５図は夫々従封装
置の例を示す図である。
符号の説明，１０…軸封装置，１…オイルシー
ル，１１…リツプ部，１２…ダストリツプ，２…
主軸，３…サンドスリンガ，４…電動機ブラケツ
ト，４１…突出部，５…シールカバー，６…シリ
コングリース，７…止メ輪，８…隙間，９…スプ
リング，２０…軸スリーブ，２１…金属輪，２２
…ゴム等の弾性体，２３…羽根部，２４…円板部
，２５…円筒部，２６…軸孔。
Figure 1 is a side sectional view of the shaft sealing device of this invention, Figure 2 is a side sectional view of the shaft sealing device of this invention;
The figure is a plan view of the shaft sleeve, and Figure 3 is A- in Figure 2.
The sectional view taken along line A, FIGS. 4 and 5 are views showing examples of the slave device, respectively. Explanation of symbols, 10... Shaft seal device, 1... Oil seal, 11... Lip portion, 12... Dust lip, 2...
Main shaft, 3...Sand slinger, 4...Motor bracket, 41...Protrusion, 5...Seal cover, 6...Silicon grease, 7...Retaining ring, 8...Gap, 9...Spring, 20...Shaft sleeve, 21...Metal ring ,22
...Elastic body such as rubber, 23...Blade part, 24...Disc part, 25...Cylindrical part, 26...Shaft hole.
Claims (1)
部の液体と、電動機外部の液体とを隔離するため
電動機軸に設けられる水中電動機の軸封装置にお
いて、金属製円板の内周部を円筒状に絞り込み、
Ｌ字形断面に成形された金属環の少なくとも円筒
部の内周にゴム等の弾性体をライニングして軸ス
リーブとし、これを主軸に嵌入し、この密封及び
回転する軸スリーブの金属環円筒部分の外周に接
して摺動するリツプ部を有する、電動機ブラケツ
トに嵌入固定させたオイルシールとにより、摺動
部を密封する軸封装置を構成し、前記軸スリーブ
の円板部分が電動機の外部の液中にあり、円板部
の外径はオイルシールの外径より大きく作られ、
又円板部の一部或いは全部の表面が金属の部分で
あり、さらにオイルシール端面と軸スリーブ円板
部との間に若干の隙間を設けることにより、砂よ
け機構とすることを特徴とする水中電動機の軸封
装置。 (2) 前記軸封装置のオイルシールは、電動機ブ
ラケツトと、金属のシールカバーとにより挟み込
み固定させ、この金属カバーと軸スリーブ円板部
の間に若干の隙間を設けることにより砂よけ機構
としたことを特徴とする請求項第１項記載の水中
電動機の軸封装置。 (3) 前記軸封装置の軸スリーブ円板部のゴムラ
イニング部分を羽根形に成形して砂よけ機構とし
たことを特徴とする請求項第１項記載の水中電動
機の軸封装置。[Scope of Claim for Utility Model Registration] (1) In a shaft sealing device for an underwater motor that is installed on the motor shaft to seal a liquid inside the motor and isolate the liquid inside the motor from the liquid outside the motor, Narrow the inner circumference of the disk into a cylindrical shape,
The inner periphery of at least the cylindrical portion of the metal ring formed into an L-shaped cross section is lined with an elastic material such as rubber to form a shaft sleeve, which is fitted onto the main shaft, and this sealing and rotation of the metal ring cylindrical portion of the shaft sleeve is performed. An oil seal fitted and fixed to the motor bracket, which has a lip portion that slides in contact with the outer periphery, constitutes a shaft sealing device that seals the sliding portion, and the disc portion of the shaft sleeve prevents liquid from outside the motor. Inside, the outer diameter of the disc part is made larger than the outer diameter of the oil seal.
Further, part or all of the surface of the disc part is made of metal, and a slight gap is provided between the end face of the oil seal and the disc part of the shaft sleeve, thereby providing a sand protection mechanism. A shaft sealing device for submersible electric motors. (2) The oil seal of the shaft sealing device is sandwiched and fixed between the motor bracket and the metal seal cover, and a slight gap is provided between the metal cover and the disc portion of the shaft sleeve to create a sand prevention mechanism. A shaft sealing device for a submersible electric motor according to claim 1, characterized in that: (3) The shaft sealing device for a submersible electric motor according to claim 1, wherein the rubber lining portion of the shaft sleeve disk portion of the shaft sealing device is formed into a vane shape to serve as a sand protection mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4817589U JPH0632763Y2 (en) | 1989-04-26 | 1989-04-26 | Submersible motor shaft seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4817589U JPH0632763Y2 (en) | 1989-04-26 | 1989-04-26 | Submersible motor shaft seal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02139454U true JPH02139454U (en) | 1990-11-21 |
| JPH0632763Y2 JPH0632763Y2 (en) | 1994-08-24 |
Family
ID=31564752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4817589U Expired - Lifetime JPH0632763Y2 (en) | 1989-04-26 | 1989-04-26 | Submersible motor shaft seal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632763Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011250504A (en) * | 2010-05-24 | 2011-12-08 | Nsk Ltd | Waterproof motor |
| JP2014107909A (en) * | 2012-11-26 | 2014-06-09 | Sumitomo Heavy Ind Ltd | Waterproof structure of motor |
-
1989
- 1989-04-26 JP JP4817589U patent/JPH0632763Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011250504A (en) * | 2010-05-24 | 2011-12-08 | Nsk Ltd | Waterproof motor |
| JP2014107909A (en) * | 2012-11-26 | 2014-06-09 | Sumitomo Heavy Ind Ltd | Waterproof structure of motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632763Y2 (en) | 1994-08-24 |
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