JPH0346071U

JPH0346071U -

Info

Publication number: JPH0346071U
Application number: JP1989107018U
Authority: JP
Priority date: 1989-09-11
Filing date: 1989-09-11
Publication date: 1991-04-26
Anticipated expiration: 2004-09-11
Also published as: JPH0723657Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例にかかる密封装置の
使用状態での部分断面図、第２図は本考案の他の
実施例で第１図に対応する図である。第３図及び
第４図は従来例にかかり、第３図は鉄道車両の歯
車装置の要部を示す縦断側面図、第４図は密封装
置の拡大断面図である。１……ハウジング、１２……台座リング（回転
部材に相当）、２０……密封装置、３０……オイ
ルシール、３１ａ……円筒部、３１ｂ……フラン
ジ部、３２……主リツプ、４０……スリンガー、
４１……スリンガー本体。 FIG. 1 is a partial sectional view of a sealing device according to an embodiment of the present invention in a used state, and FIG. 2 is a view corresponding to FIG. 1 of another embodiment of the present invention. FIGS. 3 and 4 show a conventional example, with FIG. 3 being a longitudinal sectional side view showing essential parts of a gear device for a railway vehicle, and FIG. 4 being an enlarged sectional view of a sealing device. DESCRIPTION OF SYMBOLS 1... Housing, 12... Pedestal ring (corresponding to a rotating member), 20... Sealing device, 30... Oil seal, 31a... Cylindrical part, 31b... Flange part, 32... Main lip, 40... slinger,
41...Slinger body.

Claims

[Claims for Utility Model Registration] (1) A generally circular cross-section consisting of an outer diameter cylindrical portion, a radially inward flange portion formed at one end thereof, and a main lip made of an elastic material at the end of the flange portion. It is a letter-shaped oil seal whose outer diameter cylindrical portion is fixed to the housing, and the main lip, which is placed facing the outside and slides into contact with the rotating member inserted into the housing, prevents foreign matter such as dust and water from being trapped. The oil seal is sealed between the outside where oil exists and the inside where oil etc. are present, and the main lip is held on the outside side of the oil seal by the inner peripheral surface or housing of the outer diameter cylindrical part of the oil seal. a slinger for shielding from the outside, and the inner peripheral edge of the main body of the slinger is formed to be more flexible than the main body, and a sealing portion is formed between the inner peripheral edge and the rotating member. A sealing device featuring: (2) The sealing device according to claim 1, wherein the flexible portion of the slinger is formed in a shape in which the tip side of the flexible portion projects obliquely in diameter from the base side toward the outside. . (3) An auxiliary lip is formed on the flange portion of the oil seal and extends diagonally so as to expand in diameter toward the inside, and the auxiliary lip is formed in a vertical direction of the large diameter portion of the rotary member, which may be integral or separate. 3. The sealing device according to claim 1, wherein the sealing device is in sliding contact with a side surface. (4) The sealing device according to claim 3, wherein the auxiliary lip is provided with a plurality of ribs or grooves for oil return.