JPH0378169U

JPH0378169U -

Info

Publication number: JPH0378169U
Application number: JP1989139111U
Authority: JP
Priority date: 1989-11-30
Filing date: 1989-11-30
Publication date: 1991-08-07

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例としての油漏れ防止
装置をデフアレンシヤルに実装した状態での断面
図、第２図は第１図中の回転板の部分拡大断面図
、第３図は第１図中のシール材と回転板の部分拡
大断面図、第４図は従来装置の要部概略断面図、
第５図は第４図中の回転板の部分拡大断面図、第
６図は第４図中のシール材と回転板の部分拡大断
面図である。１０……デフキヤリヤ、１１……ピニオンギア
、１２……軸部、１３……開口、１５……回転板
、１５１……シール対向面、１９……シール材、
１９３……主リツプ、１９４……副リツプ、２０
……長溝、２１……油溜り。 Fig. 1 is a sectional view of an oil leak prevention device as an embodiment of the present invention mounted on a differential, Fig. 2 is a partially enlarged sectional view of the rotating plate in Fig. 1, and Fig. 3 is FIG. 1 is a partially enlarged cross-sectional view of the sealing material and rotating plate; FIG. 4 is a schematic cross-sectional view of the main parts of the conventional device;
5 is a partially enlarged sectional view of the rotating plate in FIG. 4, and FIG. 6 is a partially enlarged sectional view of the sealing material and rotating plate in FIG. 4. 10... Differential carrier, 11... Pinion gear, 12... Shaft, 13... Opening, 15... Rotating plate, 151... Seal opposing surface, 19... Sealing material,
193...Main lip, 194...Secondary lip, 20
...long groove, 21...oil sump.

Claims

[Scope of utility model registration request]

It has an annular sealing material that seals between the opening of the housing containing the oil reservoir and the rotating shaft protruding outside from the opening, and a rotating plate that is fitted externally and integrally connected to the part of the rotating shaft that faces the oil reservoir. A long groove is formed on the seal facing surface of the rotary plate to guide the oil adhering to the same surface toward the outer circumference during rotation, and an annular first lip that is always in contact with the rotation trajectory of the long groove and a groove that guides the oil adhering to the same surface toward the outer circumference during rotation. An oil leak prevention device characterized in that an annular second lip is integrally formed as the sealing material and is always in contact with the first lip and is disposed inside the first lip.