JPS631086Y2 - - Google Patents
Info
- Publication number
- JPS631086Y2 JPS631086Y2 JP1982052922U JP5292282U JPS631086Y2 JP S631086 Y2 JPS631086 Y2 JP S631086Y2 JP 1982052922 U JP1982052922 U JP 1982052922U JP 5292282 U JP5292282 U JP 5292282U JP S631086 Y2 JPS631086 Y2 JP S631086Y2
- Authority
- JP
- Japan
- Prior art keywords
- sealing device
- rotating shaft
- flange
- sealing
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Description
【考案の詳細な説明】
この考案は回転軸に嵌装固着されるフランジ付
スリーブにカウンターフエースと、該カウンター
フエースと摺接する封止部材とを嵌装してなる密
封装置に関し、前記フランジ付スリーブを回転軸
へ嵌装する際に、フランジ外端面の変形をある程
度許容できるようにしたものである。[Detailed description of the invention] This invention relates to a sealing device in which a counter face and a sealing member that slides in contact with the counter face are fitted into a flanged sleeve that is fitted and fixed to a rotating shaft, and the flanged sleeve The outer end surface of the flange can be deformed to some extent when it is fitted onto the rotating shaft.
従来、遠心ポンプの回転軸など、ハウジング内
に回転自在に支承した回転軸に対する密封装置と
して第１図に示したような構造が提案されてい
る。即ち密封を要する回転軸１に嵌装固着される
フランジ２付スリーブ３に、カウンターフエース
４と封止部材５（摩擦リング５ａ、弾性部材５ｂ
およびコイルスプリング５ｃからなる。）を嵌装
したものである。この密封装置を回転軸１に対し
て装着した場合、弾性材で形成したスリーブ３に
はカウンターフエース４と回転軸１との間のパツ
キン作用を発揮させるので、カウンターフエース
４と回転軸１に挾まれた部分が第２図に示したよ
うに圧縮されて外側に押出されてくる。その結果
フランジ２の外端面が変形するので、フランジ２
に当接するべく回転軸１にボスその他の部材６を
装着した場合、ボスその他の部材６と密封装置と
の相対的位置関係が正確に決まらない問題点があ
つた。前記位置関係が正確に決まらないと、密封
装置におけるシール面Ｓ即ちカウンターフエース
４と摩擦リング５ａとの摺接面の軸方向位置が所
期の位置からずれることとなり密封性能上好まし
くなかつたのである。 BACKGROUND ART Conventionally, a structure as shown in FIG. 1 has been proposed as a sealing device for a rotating shaft rotatably supported within a housing, such as a rotating shaft of a centrifugal pump. That is, a counter face 4 and a sealing member 5 (friction ring 5a, elastic member 5b
and a coil spring 5c. ) is fitted. When this sealing device is attached to the rotating shaft 1, the sleeve 3 made of an elastic material exerts a packing action between the counter face 4 and the rotating shaft 1, so that the sleeve 3 is clamped between the counter face 4 and the rotating shaft 1. The compressed portion is compressed and pushed outward as shown in FIG. As a result, the outer end surface of the flange 2 is deformed, so the flange 2
When a boss or other member 6 is attached to the rotary shaft 1 so as to come into contact with the rotary shaft 1, there is a problem that the relative positional relationship between the boss or other member 6 and the sealing device cannot be determined accurately. If the above-mentioned positional relationship is not determined accurately, the axial position of the sealing surface S in the sealing device, that is, the sliding surface between the counter face 4 and the friction ring 5a, will deviate from the intended position, which is unfavorable in terms of sealing performance. .
然るにこの考案は、前記フランジ付スリーブの
フランジ外端面に凹凸部を形成して、回転軸に嵌
着した際に生じる変形を許容できるようにし、回
転軸に装着するボスその他の部材６と密封装置の
相対的位置関係を正確に決まるようにしたのであ
る。 However, in this invention, an uneven portion is formed on the outer end surface of the flange of the flanged sleeve to allow for the deformation that occurs when the sleeve is fitted onto the rotating shaft, and the boss and other members 6 attached to the rotating shaft and the sealing device are This made it possible to accurately determine the relative positional relationship between the two.
以下この考案を実施例について説明すれば、第
３図はスリーブ３の一端に形成した環状のフラン
ジ２の内周縁部に環状凹部７を形成したものであ
り、第４図は前記フランジ２の外端面に２条の環
状突条８を同心状に形成したものである。 To explain this invention with reference to embodiments, FIG. 3 shows an annular recess 7 formed on the inner peripheral edge of an annular flange 2 formed at one end of a sleeve 3, and FIG. Two annular protrusions 8 are formed concentrically on the end face.
上記の実施例によれば、密封装置を回転軸１に
装着した場合、第３図の実施例の場合には第５図
に示したように、スリーブ３の、カウンターフエ
ース４と回転軸１に挾まれて押出される部分９
は、前記環状凹部７内に収めることができ、第４
図の実施例の場合には第６図に示したように、環
状突条８の形成で構成される環状凹部１０内に収
めることができる。然して何れの実施例において
も、回転軸１に装着されるボスその他の部材６の
端面はフランジ２の外端面（第４図の実施例の場
合には、環状突条８の頂面）に正確に当接させる
ことができ、密封装置におけるシール面、即ちカ
ウンターフエース４と摩擦リング５ａとの摺接面
の回転軸方向の位置を所期の位置に正確に配する
ことができる。 According to the above embodiment, when the sealing device is attached to the rotating shaft 1, in the case of the embodiment shown in FIG. 3, as shown in FIG. Part 9 that is squeezed and extruded
can be accommodated in the annular recess 7, and the fourth
In the case of the illustrated embodiment, it can be housed in an annular recess 10 formed by an annular protrusion 8, as shown in FIG. However, in any of the embodiments, the end surface of the boss or other member 6 attached to the rotating shaft 1 is precisely aligned with the outer end surface of the flange 2 (in the case of the embodiment shown in FIG. 4, the top surface of the annular protrusion 8). This allows the sealing surface of the sealing device, that is, the sliding surface between the counter face 4 and the friction ring 5a, to be accurately positioned at a desired position in the direction of the rotation axis.
尚、前記環状突条８は１条又は３条以上とでき
ることは言うまでもない。 It goes without saying that the number of the annular protrusions 8 can be one or three or more.
即ちこの考案によれば、密封装置における弾性
部材からなるフランジ付スリーブのフランジ外端
面内に凹凸部を形成して、密封装置を回転軸に装
着した場合の変形をフランジ外端面の凹部内に収
め得るようにしたので、密封装置と、回転軸に装
着されるボスその他の部材との相対的位置関係を
正確にして、密封装置におけるシール面を所期の
位置に正確に配し、密封装置の密封性能を確実に
発揮させ得る効果がある。 That is, according to this invention, an uneven portion is formed in the outer end surface of the flange of the flanged sleeve made of an elastic member in the sealing device, so that the deformation when the sealing device is mounted on the rotating shaft is accommodated within the recessed portion of the outer end surface of the flange. Therefore, the relative positional relationship between the sealing device and the boss and other parts attached to the rotating shaft is accurate, the sealing surface of the sealing device is accurately placed at the desired position, and the sealing device is This has the effect of ensuring sealing performance.
第１図はこの考案に係る密封装置の断面図、第
２図は同じく一部拡大断面図、第３図はこの考案
の実施例のスリーブの断面図、第４図はこの考案
の他の実施例のスリーブの断面図、第５図はこの
考案の実施例の装着状態の一部拡大断面図、第６
図はこの考案の他の実施例の装着状態の一部拡大
断面図である。
１……回転軸、２……フランジ、３……スリー
ブ、４……カウンターフエース、５……封止部
材、５ａ……摩擦リング、５ｂ……弾性部材、５
ｃ……コイルスプリング、６……部材、７，１０
……環状凹部、８……環状突条、９……押出され
る部分。
Fig. 1 is a sectional view of a sealing device according to this invention, Fig. 2 is a partially enlarged sectional view, Fig. 3 is a sectional view of a sleeve according to an embodiment of this invention, and Fig. 4 is another embodiment of this invention. FIG. 5 is a sectional view of the example sleeve, and FIG. 6 is a partially enlarged sectional view of the installed state of the embodiment of this invention.
The figure is a partially enlarged cross-sectional view of another embodiment of this invention in a mounted state. DESCRIPTION OF SYMBOLS 1...Rotating shaft, 2...Flange, 3...Sleeve, 4...Counter face, 5...Sealing member, 5a...Friction ring, 5b...Elastic member, 5
c... Coil spring, 6... Member, 7, 10
...Annular recess, 8...Annular protrusion, 9...Extruded portion.
Claims (1)
ランジ付スリーブにカウンターフエースと、該
カウンターフエースと摺接する封止部材とを嵌
装してなる密封装置において、前記スリーブの
フランジ外端面の内周縁部に環状凹部が形成し
てあることを特徴とした密封装置。 ２ 環状凹部はフランジの外端面に１又は複数の
環状突条を設けて形成した実用新案登録請求の
範囲第１項記載の密封装置。[Claims for Utility Model Registration] 1. A sealing device comprising a flanged sleeve made of an elastic member that is fitted and fixed to a rotating shaft, and a counter face and a sealing member that slides in contact with the counter face, A sealing device characterized in that an annular recess is formed at the inner peripheral edge of the outer end surface of the flange of the sleeve. 2. The sealing device according to claim 1, wherein the annular recess is formed by providing one or more annular protrusions on the outer end surface of the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5292282U JPS58155457U (en) | 1982-04-12 | 1982-04-12 | sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5292282U JPS58155457U (en) | 1982-04-12 | 1982-04-12 | sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58155457U JPS58155457U (en) | 1983-10-17 |
| JPS631086Y2 true JPS631086Y2 (en) | 1988-01-12 |
Family
ID=30063613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5292282U Granted JPS58155457U (en) | 1982-04-12 | 1982-04-12 | sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58155457U (en) |
-
1982
- 1982-04-12 JP JP5292282U patent/JPS58155457U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58155457U (en) | 1983-10-17 |
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