JPH0529592Y2 - - Google Patents
Info
- Publication number
- JPH0529592Y2 JPH0529592Y2 JP1987180061U JP18006187U JPH0529592Y2 JP H0529592 Y2 JPH0529592 Y2 JP H0529592Y2 JP 1987180061 U JP1987180061 U JP 1987180061U JP 18006187 U JP18006187 U JP 18006187U JP H0529592 Y2 JPH0529592 Y2 JP H0529592Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil seal
- plug
- sliding
- present
- oil
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 6
- YAFQFNOUYXZVPZ-UHFFFAOYSA-N liproxstatin-1 Chemical compound ClC1=CC=CC(CNC=2C3(CCNCC3)NC3=CC=CC=C3N=2)=C1 YAFQFNOUYXZVPZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 229920003051 synthetic elastomer Polymers 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000005061 synthetic rubber Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、軸受など互いに回転する部材の内部
と外部とを密封するオイルシールい関し、具体的
には摺動するシールリツプの形状改良に関するも
のである。[Detailed description of the invention] [Field of industrial application] The present invention relates to an oil seal that seals the inside and outside of mutually rotating members such as bearings, and specifically relates to improving the shape of a sliding seal lip. It is.
従来、低い摺動トルクを得るために様々な造形
を施して摺動リツプ面に自己潤滑性を持たしめた
オイルシールが開発されている。
Conventionally, in order to obtain low sliding torque, oil seals have been developed with various shapes and self-lubricating properties on the sliding lip surface.
以下、図面を参照しつつ詳述する。 A detailed description will be given below with reference to the drawings.
この形状としては、第３図で示す特開昭58−
166171号の様なオイルシールA′が一般的となつ
ている。このオイルシールA′は摺動するシール
角側に微細な凹凸４を設け、該微細な凹凸４に適
量の潤滑油を包含せしめて摺接部の全面に流体潤
滑を発生させるものであり、これによつての良好
な耐摩性と潤滑性を期待している。 This shape is shown in Fig. 3.
Oil seal A' like No. 166171 is becoming common. This oil seal A' is provided with fine irregularities 4 on the sliding seal corner side, and the fine irregularities 4 contain an appropriate amount of lubricating oil to generate fluid lubrication over the entire surface of the sliding part. We expect good wear resistance and lubricity depending on the conditions.
しかしながら、前記オイルシールA′では摺動
リツプ部１の接触圧力に対して接触面積が該凹凸
４によつて大きく減ぜられているから、低回転ト
ルクではあつても強い密封作用を得ることができ
ないし、また、当然この少ない接触面積は摩耗性
に劣るもので短時間に凹凸４を消失せしめ潤滑能
力を低め回転トルクを上げるなど多くの欠点を持
つている。
However, in the oil seal A', the contact area is greatly reduced by the unevenness 4 with respect to the contact pressure of the sliding lip portion 1, so it is difficult to obtain a strong sealing effect even at low rotational torque. Moreover, naturally, this small contact area is inferior in abrasion resistance, and has many disadvantages, such as causing the unevenness 4 to disappear in a short time, lowering the lubrication ability and increasing the rotational torque.
本考案はこの様な欠点に鑑み、良好な自己潤滑
作用を永続的になさしめ、さらに内外の気圧変化
にも対応することのできるオイルシールを提供す
ることを目的としている。
In view of these drawbacks, the object of the present invention is to provide an oil seal that permanently provides a good self-lubricating effect and can also respond to internal and external pressure changes.
本考案は、第１図に示す様に、補強材５を有し
た弾性体ａからなるオイルシールＡであつて；該
オイルシールＡの摺動リツプ部１に複数の小孔２
を形成し、該小孔２にスポンジ材あるいはフエル
ト材等の多孔質材からなる栓３を挿嵌入させたこ
とを特徴としている。
As shown in FIG. 1, the present invention is an oil seal A made of an elastic body a having a reinforcing material 5;
It is characterized in that a plug 3 made of a porous material such as sponge material or felt material is inserted into the small hole 2.
本考案はこの様な構造によつて下記に示した多
くの優れた作用を発揮する。
With this structure, the present invention exhibits many excellent effects as shown below.
すなわち、本考案の摺動リツプ部１に設ける小
孔２は該オイルシールＡの成型時あるいは成型後
に形成されるが、その形状としては該オイルシー
ルＡの内外部両面に通じる貫通孔であることが後
述する作用をより有効に発揮するので好ましい構
造となる。この小孔２に嵌入する栓３は、スポン
ジ材で形成する場合、合成ゴムあるいは合成樹脂
を発泡せしめることによつて所望する形状を得、
フエルト材では造形性の良好な繊維材であるから
その造形は易しい。この栓３の嵌入装着に際して
は、第１図の如く摺動リツプ部１における接触周
面の円形状が該栓３によつて大きく害われない様
に挿入するのが肝要である。 That is, the small hole 2 provided in the sliding lip portion 1 of the present invention is formed during or after the molding of the oil seal A, and its shape is a through hole that communicates with both the inside and outside of the oil seal A. This is a preferable structure because it more effectively exhibits the effects described below. When the plug 3 that fits into the small hole 2 is made of a sponge material, the desired shape is obtained by foaming synthetic rubber or synthetic resin.
Felt material is easy to shape because it is a fiber material with good shapeability. When inserting and installing the plug 3, it is important to insert the plug 3 so that the circular shape of the contact peripheral surface of the sliding lip portion 1 is not significantly damaged by the plug 3, as shown in FIG.
この様に、栓３を装着した摺動リツプ部１は、
運転時該栓３に潤滑油あるいはグリースなどを含
浸せしめることによつてその摺動面に必要にして
充分なる潤滑材を供給でき、さらに前記栓３はオ
イルシールＡの内側にまで達している小孔２に装
着されているので軸受の内部にある潤滑油が徐々
に含浸し尽きることなく供給されて永続的な潤滑
をなす。 In this way, the sliding lip 1 with the stopper 3 attached is
By impregnating the plug 3 with lubricating oil or grease during operation, sufficient lubricant can be supplied to the sliding surface. Since it is installed in the hole 2, the lubricating oil inside the bearing gradually impregnates and is supplied without being exhausted, thereby providing permanent lubrication.
また、この運転時、高まる軸受部の内圧に対し
ても該内外に連通する小孔２及び栓３が通気路と
なつて圧力緩和をなさしめ、圧力による摺動リツ
プ部１の変形を防いで高い密封力を維持せしめる
ことができる。 In addition, during this operation, the small holes 2 and plugs 3 that communicate with the inside and outside of the bearing part act as ventilation paths to relieve pressure against the increasing internal pressure of the bearing part, thereby preventing deformation of the sliding lip part 1 due to pressure. A high sealing force can be maintained.
本考案を実施するに、摺動リツプ部１に穿設す
る小孔２は、円筒形状から角柱形状あるいは他の
変形形状等様々な形状を造形でき、これに対応す
る栓３も第２図ａに示す円柱形状栓３ａ、あるい
はｂ図の段付円柱形状栓３ｂ、またはｃ図の円錐
形状栓３ｃ等種々の形状が実施可能となる。
In carrying out the present invention, the small hole 2 formed in the sliding lip 1 can be formed into various shapes such as a cylinder, a prism, or other deformed shapes, and the corresponding plug 3 can also be formed as shown in Fig. 2a. Various shapes can be implemented, such as a cylindrical plug 3a shown in FIG. 2, a stepped cylindrical plug 3b shown in FIG.
以上の説明の様に、本考案は密封作用を行うシ
ールリツプに自己潤滑機構を与えてその摺動回転
トルクを大巾に減じせしめ合わせて内外の圧力に
も柔軟に対応することのできるものとなつた画期
的なオイルシールである。
As explained above, the present invention provides a self-lubricating mechanism to the seal lip that performs the sealing action, greatly reducing the sliding rotational torque, and making it possible to flexibly respond to internal and external pressure. This is a revolutionary oil seal.
第１図は本考案のオイルシールの断面図であ
る。第２図は本考案のオイルシールの実施例を示
した斜視図である。第３図は従来のオイルシール
の断面図である。
Ａ……オイルシール、ａ……弾性体、１……摺
動リツプ部、２……小孔、３……栓。
FIG. 1 is a sectional view of the oil seal of the present invention. FIG. 2 is a perspective view showing an embodiment of the oil seal of the present invention. FIG. 3 is a sectional view of a conventional oil seal. A...Oil seal, a...Elastic body, 1...Sliding lip portion, 2...Small hole, 3...Plug.
Claims (1)
り相互に回転する部材間を密封するオイルシール
Ａにおいて；前記オイルシールＡの摺動リツプ部
１に複数の小孔２を形成し、該小孔２にスポンジ
材あるいはフエルト材等の多孔質材からなる栓３
を嵌入せしめたことを特徴とするオイルシール。 In an oil seal A that is made of an elastic body a such as synthetic rubber or synthetic resin and seals between mutually rotating members; a plurality of small holes 2 are formed in the sliding lip 1 of the oil seal A; A plug 3 made of porous material such as sponge material or felt material
An oil seal characterized by being fitted with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987180061U JPH0529592Y2 (en) | 1987-11-25 | 1987-11-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987180061U JPH0529592Y2 (en) | 1987-11-25 | 1987-11-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0183966U JPH0183966U (en) | 1989-06-05 |
| JPH0529592Y2 true JPH0529592Y2 (en) | 1993-07-28 |
Family
ID=31471593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987180061U Expired - Lifetime JPH0529592Y2 (en) | 1987-11-25 | 1987-11-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0529592Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4790534B2 (en) * | 2006-08-07 | 2011-10-12 | 光洋シーリングテクノ株式会社 | Sealing device |
| DE112015001129T5 (en) * | 2014-03-06 | 2016-11-24 | Jtekt Corporation | Sealing element and rolling bearing for wind turbine main shaft |
| JP6673500B2 (en) * | 2016-11-25 | 2020-03-25 | Nok株式会社 | Sealing device and hub bearing |
-
1987
- 1987-11-25 JP JP1987180061U patent/JPH0529592Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0183966U (en) | 1989-06-05 |
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