JPS61181160U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案軸封装置の一実施例を示す半裁
断面図、第２図は同要部拡大断面図、第３図は漏
洩試験結果のグラフ、第４図は従来の軸封装置の
一例を示す半裁断面図、第５図は同要部拡大断面
図である。 １……リツプシール、２……ハウジング、３…
…軸孔、１０……リツプ部材、１０ｂ……リツプ
部材内径部、１２……摺接部、１５……回転軸、
１６……テーパ面、Ａ……密封流体、θ……傾斜
角度。 Fig. 1 is a half-cut sectional view showing one embodiment of the shaft sealing device of the present invention, Fig. 2 is an enlarged sectional view of the same main part, Fig. 3 is a graph of leakage test results, and Fig. 4 is a diagram of a conventional shaft sealing device. FIG. 5 is a half-cut sectional view showing an example, and FIG. 5 is an enlarged sectional view of the same essential part. 1...lip seal, 2...housing, 3...
... shaft hole, 10 ... lip member, 10b ... lip member inner diameter part, 12 ... sliding contact part, 15 ... rotary shaft,
16...Tapered surface, A...Sealed fluid, θ...Inclination angle.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 機器ハウジングの軸孔内周に気密的に嵌着され
る環状の金属ケースと、外径部が該ケースに気密
的に固着された環状の樹脂製リツプ部材とよりな
るリツプシールが、密封流体側へ湾曲もしくは屈
曲して突出する前記リツプ部材の内径部をもつて
回転軸の外周面に摺接し、前記密封流体の漏洩を
阻止するよう構成された軸封装置において、前記
リツプ部材と摺接する前記回転軸の外周面を、軸
方向密封流体側が大径となるよう適宜角度で傾斜
するテーパ面としたことを特徴とする軸封装置。 The lip seal is made up of an annular metal case that is hermetically fitted to the inner periphery of the shaft hole of the equipment housing, and an annular resin lip member whose outer diameter is hermetically fixed to the case. In a shaft sealing device configured to have an inner diameter portion of the lip member that protrudes in a curved or bent manner and come into sliding contact with the outer peripheral surface of the rotating shaft to prevent leakage of the sealing fluid, the rotating member that comes into sliding contact with the lip member. A shaft sealing device characterized in that the outer circumferential surface of the shaft is a tapered surface inclined at an appropriate angle so that the axial sealing fluid side has a larger diameter.