JPS6221814Y2 - - Google Patents
Info
- Publication number
- JPS6221814Y2 JPS6221814Y2 JP1982110488U JP11048882U JPS6221814Y2 JP S6221814 Y2 JPS6221814 Y2 JP S6221814Y2 JP 1982110488 U JP1982110488 U JP 1982110488U JP 11048882 U JP11048882 U JP 11048882U JP S6221814 Y2 JPS6221814 Y2 JP S6221814Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- lip
- seal
- oil
- oil seal
- 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
Links
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 206010034133 Pathogen resistance Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- YAFQFNOUYXZVPZ-UHFFFAOYSA-N liproxstatin-1 Chemical compound ClC1=CC=CC(CNC=2C3(CCNCC3)NC3=CC=CC=C3N=2)=C1 YAFQFNOUYXZVPZ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
【考案の詳細な説明】
本考案は、ふつ素樹脂製の耐圧用オイルシール
に関するものである。[Detailed Description of the Invention] The present invention relates to a pressure-resistant oil seal made of fluororesin.
一般にオイルシールは、耐摩性、耐熱性、耐
圧性等オイルシールとして必要な物理的性質のほ
か、耐薬品性、耐蝕性、耐細菌性等にも優れて耐
久性が大であること、軸体等のシールすべき部
材への弾性的な接触追従性が常に良好で長期に亘
つて所期のシール機能を果し得ることが望まし
い。 In general, oil seals have the physical properties necessary for oil seals such as wear resistance, heat resistance, pressure resistance, etc., as well as excellent chemical resistance, corrosion resistance, bacterial resistance, etc., and are highly durable. It is desirable that the elastic contact followability to the member to be sealed is always good and that the desired sealing function can be achieved over a long period of time.
ところで、ふ素樹脂が前記の特性を保有する
ことに着目してオイルシールのシールリツプをふ
つ素樹脂により形成したものを既に特公昭55−
36862号で提供しており、例えば第１図に示すよ
うにふつ素樹脂製のシールリツプ１内にコイルば
ね２を内蔵しており、オイルシールとして、ほぼ
完壁にあらゆる使用条件を満足している。 By the way, focusing on the fact that fluororesin possesses the above-mentioned properties, a seal lip of an oil seal made of fluororesin has already been published in Japanese Patent Publication Publication No. 1983-
No. 36862, for example, as shown in Figure 1, a coil spring 2 is built into a seal lip 1 made of fluorine resin, and it almost completely satisfies all usage conditions as an oil seal. .
即ち耐蝕性の点でもコイルばね２を内蔵してい
るので、シール対象物に対する腐蝕の問題も見事
に解決している。 That is, since the coil spring 2 is built-in from the viewpoint of corrosion resistance, the problem of corrosion of the object to be sealed is successfully solved.
然しながら、オイルシールは益々高速回転数、
高圧に耐えるものとして、要求に応えていかなく
てはならないのが現状である。そこで、更に高圧
に耐えるオイルシールへの要求に応えるために、
前記のふつ素樹脂製オイルシールに改良を加えた
のが、本考案のふつ素樹脂製の耐圧用オイルシー
ルである。 However, oil seals are used at increasingly high rotation speeds,
Currently, it is necessary to meet the demands for products that can withstand high pressure. Therefore, in order to meet the demand for oil seals that can withstand even higher pressures,
The pressure-resistant oil seal made of fluorocarbon resin of the present invention is an improvement on the above-mentioned fluorocarbon resin oil seal.
そもそも、ふつ素樹脂製オイルシールは、シー
ルリツプがふつ素樹脂で構成されているので、ゴ
ムのシールリツプに較べて、材質の特性として剛
性が高く、圧力に対して変形が少ないために、耐
圧性を保持しているが、反面初期のなじみ性が悪
い欠点もある。そして単に圧力に対する変形を押
さえるだけの目的ならばシールリツプの肉厚を増
せば良いが、オイルシールは軸に対して運転中は
絶えず弾性的に接触して、追従性を維持していな
ければならないので、シールリツプの肉厚を左程
増すわけにはゆかず、適正な肉厚に押さえなくて
はならない。 In the first place, the seal lip of a fluorocarbon resin oil seal is made of fluorocarbon resin, so compared to a rubber seal lip, the material has higher rigidity and less deformation under pressure, so it has better pressure resistance. However, on the other hand, it also has the disadvantage of poor initial familiarity. If the purpose is simply to suppress deformation due to pressure, it is sufficient to increase the thickness of the seal lip, but since the oil seal must constantly be in elastic contact with the shaft during operation to maintain followability. , it is not possible to increase the thickness of the seal lip by that much, and it is necessary to keep it at an appropriate thickness.
また、高圧用シールの場合、回転中は吸引作用
により、オイルは油室内に吸い込まれるが、静止
時にリツプが高圧時に受けた変形を急激にもとの
状態に戻せないために、オイル洩れを若干発生す
る場合がある。 In addition, in the case of high-pressure seals, oil is sucked into the oil chamber by suction during rotation, but when the lip is stationary, the deformation that it received during high pressure cannot be quickly returned to its original state, so oil leakage is slightly reduced. This may occur.
上述の初期のなじみ性に起因する若干の油洩れ
と、静止時の若干の油洩れを防止する目的で考案
されたのが、本考案である。 The present invention was devised for the purpose of preventing the slight oil leak caused by the above-mentioned initial conformability and the slight oil leak when the vehicle is stationary.
即ち、本考案では第２図に示すように、Ｌ字形
の補強環３の内周部を延長して截頭円錐状に構成
して耐圧用として、シールリツプ４の変形をバツ
クアツプして押さえるとともに、該截頭円錐面５
の上端部６に、ゴムを焼着して常に回転軸とある
締代をもつて弾接する補助リツプ７を構成してい
る。（この補助リツプ７は、一般のオイルシール
のダストリツプと同程度の締代をもつている。）
このように構成すると、補助リツプ７の作用に
よつて、初期のなじみ不足によるシールリツプ４
よりのわずかな洩れを補助リツプ７が防止するの
で、従来可なりの時間を費していた「ならし運
転」が可なり短縮出来るというメリツトが生ずる
とともに、静止時においても補助リツプ７の作用
によつて、シールリツプ４よりのわずかな洩れを
補助リツプ７が防止するので、より完壁なオイル
シールと成し得る。 That is, in this invention, as shown in FIG. 2, the inner periphery of the L-shaped reinforcing ring 3 is extended to form a truncated cone shape for pressure resistance, and the deformation of the seal lip 4 is backed up and suppressed, and the truncated cone surface 5
The upper end 6 of the bearing is provided with an auxiliary lip 7, which is made of sintered rubber and always elastically contacts the rotating shaft with a certain amount of interference. (This auxiliary lip 7 has the same amount of interference as the dust lip of a general oil seal.) With this configuration, the action of the auxiliary lip 7 prevents the seal lip 4 from slipping due to insufficient initial fit.
Since the auxiliary lip 7 prevents slight leakage from the seal lip 4, there is an advantage that the "break-in" period, which previously took a considerable amount of time, can be significantly shortened, and since the auxiliary lip 7 prevents slight leakage from the seal lip 4 even when the engine is stationary, a more perfect oil seal can be achieved.
本考案のふつ素樹脂製の耐圧用オイルシール
は、耐摩性、耐熱性、耐蝕性は勿論のこと耐偏心
性、耐圧性の点でも優れた画期的なものであり、
従来のオイルシールの適用範囲を拡げることが可
能である。従つて、従来メカニルシールが使用さ
れていた箇所への適用も可能であり、部品点数も
少なくコンパクトな構成なので、製品も廉価であ
り、経済性の点でも有利である。 The pressure-resistant oil seal made of fluorine resin of this invention is a revolutionary product that is excellent not only in wear resistance, heat resistance, and corrosion resistance, but also in eccentricity resistance and pressure resistance.
It is possible to expand the scope of application of conventional oil seals. Therefore, it can be applied to locations where mechanical seals have conventionally been used, and since the number of parts is small and the structure is compact, the product is inexpensive and is advantageous in terms of economy.
第１図は従来例を示す半部縦断側面図、第２図
は、本考案の実施例を示す半部縦断側面図であ
る。
３……補強環、４……シールリツプ、５……截
頭円錐面、６……上端部、７……補助リツプ。
FIG. 1 is a half vertical side view showing a conventional example, and FIG. 2 is a half vertical side view showing an embodiment of the present invention. 3...Reinforcement ring, 4...Seal lip, 5...Friss-conical surface, 6...Upper end, 7...Auxiliary lip.
Claims (1)
内蔵した耐圧用オイルシールに於いて、Ｌ字形の
補強環の内周部を延長して截頭円錐状に構成する
とともに、該截頭円錐面の上端部に回転軸と常に
締代をもつて弾接するゴム製の補助リツプを焼着
したことを特徴する耐圧用オイルシール。 In a pressure-resistant oil seal with a coil spring built into the seal lip made of fluorine resin, the inner circumference of the L-shaped reinforcing ring is extended to form a truncated conical shape, and the upper end of the truncated conical surface A pressure-resistant oil seal characterized by a rubber auxiliary lip baked into the part that makes elastic contact with the rotating shaft at all times with a tightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982110488U JPS5915857U (en) | 1982-07-21 | 1982-07-21 | Pressure-resistant oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1982110488U JPS5915857U (en) | 1982-07-21 | 1982-07-21 | Pressure-resistant oil seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5915857U JPS5915857U (en) | 1984-01-31 |
| JPS6221814Y2 true JPS6221814Y2 (en) | 1987-06-03 |
Family
ID=30256931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1982110488U Granted JPS5915857U (en) | 1982-07-21 | 1982-07-21 | Pressure-resistant oil seal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915857U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0698902B2 (en) * | 1986-01-30 | 1994-12-07 | マツダ株式会社 | Vehicle transmission torque control device |
| JPH075033B2 (en) * | 1986-01-30 | 1995-01-25 | マツダ株式会社 | Vehicle transmission torque control device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537187U (en) * | 1976-07-05 | 1978-01-21 |
-
1982
- 1982-07-21 JP JP1982110488U patent/JPS5915857U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537187U (en) * | 1976-07-05 | 1978-01-21 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5915857U (en) | 1984-01-31 |
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