JPH0641017Y2 - Emergency water seal mechanism in shaft seal device - Google Patents
Emergency water seal mechanism in shaft seal deviceInfo
- Publication number
- JPH0641017Y2 JPH0641017Y2 JP1988142750U JP14275088U JPH0641017Y2 JP H0641017 Y2 JPH0641017 Y2 JP H0641017Y2 JP 1988142750 U JP1988142750 U JP 1988142750U JP 14275088 U JP14275088 U JP 14275088U JP H0641017 Y2 JPH0641017 Y2 JP H0641017Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- seal
- ring
- pushing member
- seal ring
- 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 - Lifetime
Links
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、例えば水処理設備におけるフロック形成池用
フロキュレータ等に使用する軸封装置の緊急封水機構に
関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an emergency water sealing mechanism of a shaft sealing device used for, for example, a flocculation pond flocculator in a water treatment facility.
（従来技術） 第２図は従来型フロック形成池用フロキュレータの軸封
装置を示し、軸１にシールリング２が直接接触するよう
に取付けられている。このシールリング２はケーシング
３とプレート４で形成される環状凹部に収納されてい
る。ケーシング３とプレート４は複数のボルト５によっ
て、コンクリート壁７に取付けられたスタッフイングボ
ックス６に固着されており、シールリング２を取替える
場合には、ボルト５を外したのち、ケーシング３とプレ
ート４を取外してシールリングの取替えを行うようにな
っている。(Prior Art) FIG. 2 shows a shaft sealing device for a flocculator for a conventional flock forming pond, in which a seal ring 2 is attached to a shaft 1 so as to be in direct contact therewith. The seal ring 2 is housed in an annular recess formed by the casing 3 and the plate 4. The casing 3 and the plate 4 are fixed to the stuffing box 6 attached to the concrete wall 7 by a plurality of bolts 5. When replacing the seal ring 2, the bolt 5 is removed and then the casing 3 and the plate 4 are removed. It is designed to be removed and the seal ring replaced.
このような軸封装置のシールリング２を交換する場合、
池内の水が溢れ出るので、池内の水面を軸封装置以下ま
でさげる必要があった。このため作業能率の点で問題が
あり、池内の水面を下げなくてもシール部分を交換する
ことが可能な軸封機構が要望されていた。When replacing the seal ring 2 of such a shaft sealing device,
Since the water in the pond overflowed, it was necessary to reduce the water level in the pond to below the shaft sealing device. Therefore, there is a problem in terms of work efficiency, and there has been a demand for a shaft sealing mechanism that can replace the seal portion without lowering the water level in the pond.
（考案により解決しようとする課題） 従来技術の問題点に鑑み、池内の水面を下げなくともシ
ール部品の交換が可能な軸封装置の封水機構を提供する
ことを課題とする。(Problem to be solved by the invention) In view of the problems of the prior art, it is an object to provide a water sealing mechanism of a shaft sealing device that allows replacement of sealing components without lowering the water surface in a pond.
（考案による課題の解決手段） スタッフイングボックスに固着したケーシング内に軸封
用のシールリングを取付けた軸封装置に於て、シールリ
ング２と軸１との間にシール押し部材８の雌ねじ部8aを
軸１に設けた雄ねじ部1aに対しねじ結合し、該シール押
し部材８の先端部端面にスタッフイングボックス６の環
状突部12と当接するＯリング11を、又同じく内周面に軸
１と接するＯリング10を設け、他端に位置決め用のセッ
トボルト９を設け、さらに該シール押し部材８のシール
リング２が接する外周面は軸１の軸心と平行であり、２
つのＯリング10と11を配設する部分のみ肉厚になってい
る。(Means for Solving the Problem by the Invention) In a shaft sealing device having a seal ring for shaft sealing mounted in a casing fixed to a stuffing box, a female thread portion of a seal pushing member 8 is provided between the seal ring 2 and the shaft 1. 8a is screwed to a male screw portion 1a provided on the shaft 1, and an O-ring 11 that abuts the annular protrusion 12 of the stuffing box 6 is attached to the end face of the seal pushing member 8 and the shaft is also attached to the inner peripheral face. 1 is provided with an O-ring 10 and the other end is provided with a set bolt 9 for positioning, and the outer peripheral surface of the seal pushing member 8 with which the seal ring 2 is in contact is parallel to the axis of the shaft 1.
Only the portion where the two O-rings 10 and 11 are arranged is thick.
（実施例） 第１図に基いて説明する。ただし、第２図と共通の構造
についてはその説明を省略する。(Example) It demonstrates based on FIG. However, the description of the structure common to FIG. 2 is omitted.
さて、８は筒状をなしたシール押し部材で、シールリン
グ２と軸１との間に挿入されている。そして、このシー
ル押し部材８は長さａの雌ねじ部8aを有し、これに対応
し軸１側には長さｂ（＞ａ）の雄ねじ部1aを有し、軸１
にねじ結合で取付けるようになっている。Now, reference numeral 8 denotes a cylindrical seal pushing member, which is inserted between the seal ring 2 and the shaft 1. The seal pushing member 8 has a female screw portion 8a having a length a, and correspondingly has a male screw portion 1a having a length b (> a) on the shaft 1 side.
It is designed to be attached by screw connection to.
シール押し部材８の先端は大径部1bとなり、該大径部1b
の内周面と端面に夫々Ｏリング10及び11が設けられてい
る。シール押し部材８はセットボルト９を軸１に対しそ
の半径方向にねじ込むことにより位置決めされる。又シ
ール押し部材８のシールリング２が接する外周面は軸１
の軸心と平行である。The tip of the seal pushing member 8 becomes the large diameter portion 1b, and the large diameter portion 1b
O-rings 10 and 11 are provided on the inner peripheral surface and the end surface, respectively. The seal pushing member 8 is positioned by screwing the set bolt 9 onto the shaft 1 in the radial direction thereof. Further, the outer peripheral surface of the seal pushing member 8 in contact with the seal ring 2 is the shaft 1
Parallel to the axis of.
なお軸１はシール押し部材８の前記大径部1bが嵌る部分
の径d1が最も大きく、雄ねじ部1aの設けられた部分の径
d2がこれに次ぎ、セットボルト９の先端が当る部分の径
d3がさらに小径となっている（d1＞d2＞d3）。12はスタ
ッフイングボックス６に設けたシール押し部材８の突当
用突部である。The shaft 1 has the largest diameter d 1 in the portion where the large diameter portion 1b of the seal pushing member 8 fits, and the diameter of the portion where the male screw portion 1a is provided.
d 2 is next to this, and the diameter of the part where the tip of the set bolt 9 contacts
d 3 is further smaller diameter (d 1> d 2> d 3). Reference numeral 12 denotes a protrusion for abutting the seal pushing member 8 provided on the stuffing box 6.
（作用） シール押し部材８の雌ねじ8aを軸１側の雄ねじ部1aにね
じ込み、第１図の位置でセットボルト９で位置決めした
状態で軸１は回転し稼働する。このとき池内の水はシー
ルリング２とＯリング10によってシールされている。(Operation) The female screw 8a of the seal pushing member 8 is screwed into the male screw portion 1a on the shaft 1 side, and the shaft 1 is rotated and operated while being positioned by the set bolt 9 at the position shown in FIG. At this time, the water in the pond is sealed by the seal ring 2 and the O ring 10.
シールリング２を交換するときは、セットボルト９を外
しシール押し部材８を回して前進させる。こん前進中は
Ｏリング10とシールリング２でシールされている。シー
ル押し部材８がスタッフイングボックス６の突当用突部
12に当るまで前進させる（距離約3mm）。この状態では
池内水はＯリング10とＯリング11でシールされる。した
がって、シールリング２を外しても池内水は溢れること
はない。When replacing the seal ring 2, the set bolt 9 is removed and the seal pushing member 8 is rotated and moved forward. During the forward movement, it is sealed by the O-ring 10 and the seal ring 2. The seal pushing member 8 is a protrusion for hitting the stuffing box 6.
Move forward until it hits 12 (distance about 3mm). In this state, the pond water is sealed by the O-ring 10 and the O-ring 11. Therefore, the pond water will not overflow even if the seal ring 2 is removed.
この状態でボルト５を外しケーシング３を取外したの
ち、シールリング２を取外し交換する。交換後シール押
し部材８を回転させて、初期位置まで後進させ、セット
ボルト９にてセットする。In this state, the bolt 5 is removed, the casing 3 is removed, and then the seal ring 2 is removed and replaced. After the replacement, the seal pushing member 8 is rotated to move backward to the initial position and set with the set bolt 9.
（効果） 軸とシールリングとの間にシール押し部材を螺合し、該
シール押し部材の先端部と内周面にＯリングを取付けた
ので、シールリング取替時に於てもシール押し部材を前
進させて水封状態が得られるようにした。したがって従
来シールリングの交換に際し、多大の労力と金をかけて
池内水をスタッフイングボックス以下まで抜き、しかも
フロック形成池の運転を全面停止させていたが、本考案
により軸だけを停止させる事により、池内水を抜く事な
く交換が可能となった。(Effect) Since the seal pushing member is screwed between the shaft and the seal ring, and the O-ring is attached to the tip end portion and the inner peripheral surface of the seal pushing member, the seal pushing member can be used even when the seal ring is replaced. It was moved forward so that a water-sealed state could be obtained. Therefore, when replacing the seal ring, it took a great deal of effort and money to drain the pond water to below the stuffing box and to completely stop the operation of the flock formation pond. , It became possible to replace the water in the pond without draining it.
第１図は本考案に係る緊急水封装置を備えた軸封装置の
断面図。 第２図は従来型の軸封装置。 図において； ａ……シール押し側雌ねじ部の長さ ｂ……軸側雄ねじ部の長さ １……軸、1a……雄ねじ部 1b……大径部、２……シールリング ３……ケーシング、４……プレート ５……ボルト ６……スタッフイングボックス ７……コンクリート壁、８……シール押し部材 8a……雌ねじ部、９……セットボルト 10……Ｏリング、11……Ｏリング 12……突当用突部FIG. 1 is a sectional view of a shaft sealing device equipped with an emergency water sealing device according to the present invention. Fig. 2 shows a conventional shaft seal device. In the figure: a: Length of female thread on seal pushing side b: Length of male thread on shaft 1 ... Shaft, 1a ... Male thread 1b ... Large diameter part, 2 ... Seal ring 3 ... Casing 4 …… Plate 5 …… Bolt 6 …… Stuffing box 7 …… Concrete wall, 8 …… Seal pushing member 8a …… Female thread, 9 …… Set bolt 10 …… O ring, 11 …… O ring 12 ...... Abutment protrusion
Claims (1)
ング内に軸封用のシールリングを取付けた軸封装置に於
て、シールリング（２）と軸（１）との間にシール押し
部材（８）の雌ねじ部（8a）を軸（１）に設けた雄ねじ
部（1a）に対しねじ結合し、該シール押し部材（８）の
先端部端面にスタッフイングボックス（６）の環状突部
（12）と当接するＯリング（11）を、又同じく内周面に
軸（１）と接するＯリング（10）を設け、他端に位置決
め用のセットボルト（９）を設け、さらに該シール押し
部材（８）のシールリング（２）が接する外周面は軸
（１）の軸心と平行であり、２つのＯリング（10と11）
を配設する部分のみ肉厚に構成したことを特徴とする軸
封装置における緊急封水機構。1. A shaft sealing device having a seal ring for shaft sealing mounted in a casing fixed to a stuffing box, wherein a seal pushing member (8) is provided between the seal ring (2) and the shaft (1). Female screw part (8a) of the above is screwed to the male screw part (1a) provided on the shaft (1), and the annular protrusion (12) of the stuffing box (6) is attached to the end face of the seal pushing member (8). An O-ring (11) that comes into contact with the shaft, an O-ring (10) that also comes into contact with the shaft (1) on the inner peripheral surface, and a set bolt (9) for positioning at the other end. The outer peripheral surface which the seal ring (2) of 8) contacts is parallel to the axis of the shaft (1), and two O-rings (10 and 11)
An emergency water-sealing mechanism in a shaft sealing device, characterized in that only the portion where the water is disposed is made thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988142750U JPH0641017Y2 (en) | 1988-11-02 | 1988-11-02 | Emergency water seal mechanism in shaft seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988142750U JPH0641017Y2 (en) | 1988-11-02 | 1988-11-02 | Emergency water seal mechanism in shaft seal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0266762U JPH0266762U (en) | 1990-05-21 |
| JPH0641017Y2 true JPH0641017Y2 (en) | 1994-10-26 |
Family
ID=31408964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988142750U Expired - Lifetime JPH0641017Y2 (en) | 1988-11-02 | 1988-11-02 | Emergency water seal mechanism in shaft seal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0641017Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012067795A (en) * | 2010-09-21 | 2012-04-05 | Sinfonia Technology Co Ltd | Vacuum seal mechanism and vacuum robot |
| JP2014074430A (en) * | 2012-10-03 | 2014-04-24 | Taisei Denki Kogyosho Co Ltd | Method for replacing seal ring of submerged bearing for flocculator and equipment used for this method |
| JP6190293B2 (en) | 2014-03-10 | 2017-08-30 | 株式会社神戸製鋼所 | Oil-free screw compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5972358U (en) * | 1982-11-05 | 1984-05-16 | 三菱電機株式会社 | Rotating machine rotating shaft oil seal device |
-
1988
- 1988-11-02 JP JP1988142750U patent/JPH0641017Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0266762U (en) | 1990-05-21 |
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