JPS6119168U

JPS6119168U - Waterproof seal unit

Info

Publication number: JPS6119168U
Application number: JP10480584U
Authority: JP
Inventors: 慶忠都地; 道敏満丸; 育義木田
Original assignee: 光洋精工株式会社; 日本ピラー工業株式会社
Priority date: 1984-07-10
Filing date: 1984-07-10
Publication date: 1986-02-04
Also published as: JPH0129313Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は使用状態において示きれている本考案の物品の
縦断正面図、第２図はその各部の第３図■−■線におけ
る分解縦断正面図、第３図は第２図の■一■線における
側面図、第４図は従来の装置の縦断面図である。１１・・・メカニカルシール、３１・・・軸受シール、
５・・・外筒、Ｃ・・・弾性套部、８・・・軸受外輪、
９・・・ノ１ウジング、３３・・・弾性体部、１４，１
５，１６・・・外周面部、２０・・・放射方向溝、２２
・・・半径方向溝、２１・・・軸方向溝、２３・・・環
状溝、２５・・・空間、２４・・・水抜き孔、１２・・
・突起、１３・・・凹部。Fig. 1 is a vertical sectional front view of the article of the present invention in a state of use, Fig. 2 is an exploded longitudinal sectional front view of each part of the article taken along the line ■-■ in Fig. 3, and Fig. 3 is The side view taken along the line (2) and FIG. 4 are longitudinal sectional views of the conventional device. 11... Mechanical seal, 31... Bearing seal,
5...Outer cylinder, C...Elastic sleeve, 8...Bearing outer ring,
9... No. 1 housing, 33... Elastic body portion, 14,1
5, 16... Outer peripheral surface portion, 20... Radial direction groove, 22
... Radial groove, 21 ... Axial groove, 23 ... Annular groove, 25 ... Space, 24 ... Drain hole, 12 ...
-Protrusion, 13... recess.

Claims

[Scope of utility model registration request]

(1) In a seal unit in which a mechanical seal and a bearing seal are combined, one end of the elastic mantle of the outer cylinder of the mechanical seal and the outer peripheral surface of the bearing seal are designed to fit into the outer ring of the bearing, and the outer cylinder of the mechanical seal The other end of the elastic sleeve of the mechanical seal is tightly fitted into the housing, the sleeve of the mechanical seal and the elastic body of the bearing seal are joined at their mutual end faces, and the end face of the sleeve of the mechanical seal and the bearing outer ring are connected to each other. A waterproof seal unit in which radial, axial, radial, and annular passages are formed on the outer peripheral surface extending over the housing and the housing, and the annular passages are located in the drain hole of the housing.

(2) The outer periphery of the outer cylindrical sleeve of the mechanical seal is formed in a stepped shape consisting of three outer circumferential surface portions having different outer diameters and two radial flat portions connecting the outer circumferential surface portions, and The outer circumferential surface portion having a small outer diameter and the outer circumferential surface of the bearing seal are intended to fit closely into the outer ring, and the one radial flat portion communicating with the outer circumferential surface portion is brought into contact with the end surface of the bearing outer ring. comb, the outer circumferential surface portion having the largest outer diameter is brought into close contact with the housing, and a space portion continuous in the circumferential direction is formed between the intermediate outer circumferential surface portion, the other radial plane portion, the housing, and the outer ring end surface; The space portion and the water drain hole are communicated with each other, and a plurality of water passages are formed in a radial manner at the joint portion of the mechanical seal and the bearing seal, and the other water passage is connected to the water passage. The waterproofing according to claim (1) of the registered utility model, wherein the groove is formed in the outer circumferential surface portion with the smallest diameter of the outer cylindrical sleeve of the mechanical seal and the radial plane portion communicating with the outer circumferential surface portion. shaped seal unit.

(3) The joint portion of the mechanical seal and the bearing seal can be attached and detached, and a plurality of groove portions are formed radially in at least one of the joint portions of both seals, so that when the two seals are joined, the groove portion 2. A waterproof seal unit according to claim (2) of the utility model registration, in which the water passage serves as a water passage.

(4) A protrusion is formed on the end face of one of the two seals, and the protrusion is fitted to the end opposite to the protrusion of the other seal, so that the protrusion is continuous in the circumferential direction for joining both seals. Utility model registration claim No. 3 (3) in which a groove is formed
) waterproof seal unit. {5} The waterproof seal unit according to claim (4), wherein the protrusion is formed on an end face of a mechanical seal, and the groove is formed on a bearing seal.