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

【図面の簡単な説明】[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

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）メカニカルシールと軸受シールとが組合わされた
シールユニットにおいて、メカニカルシールの外筒の弾性套部の一端および軸受シ
ールの外周面が軸受の外輪に嵌着すべくされ、メカニカルシールの外筒の弾性套部の他端がハウジング
に密嵌すべくされ、メカニカルシールの上記套部と軸受シールの弾性体部と
を相互の端面で接合し、該メカニカルシールの上記套部の端面および軸受外輪と
ハウジングにまたがる外周面部にそれぞれ放射方向、軸
方向、半径方向ならびに環゜状の通水路を形成し、該環状通路をハウジングの水抜き孔に位置すべくした防水形シールユニット。(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）前記メカニカルシールの外筒套部の外周部が
互いに外径の異なる３つの外周面部分と、該外周面部分
を連絡する２つの半径方向平面部とからなる階段状に形
成され、最も外径の小さい外周面部分と、前記軸受シールの外周
面とが外輪に密接に嵌合すべくされ、該外周面部分に連
絡する前記一方の半径方向平面部を軸受外輪の端面に当
接すべくし、最も外径の大きい外周面部分をハウジング
に密接すべくし、中間にある外周面部分と前記他方の半径方向平面部とハ
ウジングと外輪端面とで円周方向に連続する空間部を形
成し、該空間部と前記水抜き孔とを連通すべくするとと
もに、前記メカニカルシールと軸受シールとの接合部分に形成
した通水路を放射状に複数個形成し、該通水路に連続す
る前記他の通水路を前記メカニカルシールの外筒套部の
最も径の小さい外周面部分及び該外周面部分に連絡する
半径方向平面部に形成した溝により形成した実用新案登
録請求の範囲第（１）項記載の防水形シールユニット。(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）前記メカニカルシールと軸受シールの接合部の着
脱を可能とし、両シールの前記接合部の少なくとも一方
に放射状に複数個の溝部を形成して、前記両シールを接
合したときに、該溝部が通水路となるよづにした実用新
案登録請求の範囲第（２）項記載の防水形シールユニッ
ト。(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）前記両シールのいずれか一方のシールの端面に突
起を形成し、他方のシールの前記突起に対向する端部に
前記突起と嵌着し両シールを接合するための円周方向に
連続する溝部を形成した実用新案登録請求の範囲第（３
）項記載の防水形シールユニット。｛５｝前記突起がメカニカルシールの端面に形成さ
れ、溝部が軸受シールに形成された実用新案登録請求の
範囲第（４）項記載の防水形シールユニット。(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.