JPH051738Y2 - - Google Patents
Info
- Publication number
- JPH051738Y2 JPH051738Y2 JP1985024338U JP2433885U JPH051738Y2 JP H051738 Y2 JPH051738 Y2 JP H051738Y2 JP 1985024338 U JP1985024338 U JP 1985024338U JP 2433885 U JP2433885 U JP 2433885U JP H051738 Y2 JPH051738 Y2 JP H051738Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- fitted
- spring
- rotating shaft
- spring bearing
- 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
- 238000007789 sealing Methods 0.000 claims description 38
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000012856 packing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Mechanical Sealing (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は各種回転機器における３室間の封鎖を
行うメカニカルシールに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mechanical seal that seals off three chambers in various types of rotating equipment.
従来、各種回転機器における３室間の封鎖を行
うメカニカルシールとして第５図に示す如きダブ
ル形シールと第６図に示す如きタンデム形シール
が周知として用いられている。
BACKGROUND ART Conventionally, a double seal as shown in FIG. 5 and a tandem seal as shown in FIG. 6 have been widely used as mechanical seals for sealing off three chambers in various types of rotating equipment.
このうち前者は、固定ケーシング側に嵌入する
緩衝材より成る封止リング１、該封止リングに嵌
入させたフローテイングシート２、回転軸Ｓに密
嵌させたパツキン３と前記フローテイングシート
２と対接するシールリング４とを一体的に構成し
た回転リング５、をもつて１組の封鎖手段とし、
２組の封鎖手段を逆向きに対向させて両回転リン
グ５背面側に１個の圧縮ばね６を介在させて成
る。 Of these, the former consists of a sealing ring 1 made of a cushioning material that is fitted into the fixed casing side, a floating sheet 2 that is fitted into the sealing ring, a packing 3 that is tightly fitted to the rotating shaft S, and the floating sheet 2. A set of sealing means includes a rotary ring 5 that is integrally formed with a seal ring 4 that is in contact with the seal ring 4,
Two sets of blocking means are opposed in opposite directions, and one compression spring 6 is interposed on the back side of both rotary rings 5.
また、後者は、前述同様の封止リング、フロー
テイングシート、回転リングに加えて、該回転リ
ング背面に圧縮ばね６ａを介しばね受リング７を
設け、該リング７は回転軸Ｓに削設する輪状溝に
嵌入させたばねリング８により係止させたものを
もつて１組の封鎖手段とし、この封鎖手段と同様
構成のものを同方向に縦列配置したものである。 Moreover, in addition to the sealing ring, floating sheet, and rotating ring similar to those described above, the latter is provided with a spring bearing ring 7 via a compression spring 6a on the back surface of the rotating ring, and the ring 7 is cut and installed on the rotating shaft S. A set of sealing means is comprised of a spring ring 8 fitted into the annular groove, and sealing means having the same structure are arranged in tandem in the same direction.
ダブル形シールはタンデム形に比し構造は簡単
であるが、１個の圧縮ばねにより両シール面への
面圧を受持せているため、一方のシール面に不具
合を生じると他方側にも影響が出て、結局両シー
ル部が漏洩することとなる。
The double type seal has a simpler structure than the tandem type, but since a single compression spring supports the surface pressure on both seal surfaces, if a problem occurs on one seal surface, the pressure on the other side will also be affected. As a result, both seals end up leaking.
また、タンデム形シールは一方のシール面に不
具合を生じても、それぞれの封鎖手段が独立して
いるため他方に悪影響を与えないが、構造が若干
複雑であるため高価となり、また組付も時間を多
く必要とする欠点を有している。 In addition, even if a problem occurs with tandem seals, each sealing means is independent, so it will not adversely affect the other seal, but the structure is somewhat complex, making it expensive, and it takes time to assemble. It has the disadvantage of requiring a large amount of
２組の封鎖手段をもつて１セツトとし、各組の
封鎖手段は固定ケーシング側に嵌入する緩衝材よ
り成る封止リング、該封止リングに嵌入させると
ともに回転軸に遊嵌させたフローテイングシー
ト、回転軸に密嵌させたパツキンと前記フローテ
イングシートに対接するシールリングとを一体的
に構成した回転リング、該回転リング背面に圧縮
ばねを介し回転軸に嵌挿したばね受リング、をも
つて構成し、該２組の封鎖手段は双方のばね受リ
ングを対向させ、該両ばね受リング間には回転軸
に穿設した輪状溝にばねリングを嵌装し、該ばね
リングに両ばね受リングが接触するとともに両ば
ね受リングは相互に接触せぬごとく配置したこと
を特徴とする。
One set includes two sets of sealing means, and each set of sealing means includes a sealing ring made of a cushioning material that is fitted into the fixed casing side, and a floating sheet that is fitted into the sealing ring and loosely fitted to the rotating shaft. , a rotating ring integrally comprising a packing tightly fitted to the rotating shaft and a seal ring facing the floating seat, and a spring bearing ring fitted to the rotating shaft via a compression spring on the back surface of the rotating ring. The two sets of sealing means have both spring bearing rings facing each other, a spring ring is fitted into an annular groove bored in the rotating shaft between the two spring bearing rings, and both spring bearing rings are fitted in the spring rings. It is characterized in that the rings are in contact with each other and both spring bearing rings are arranged so that they do not come into contact with each other.
２組の封鎖手段は双方のばね受リングを対向さ
せ、両ばね受リング間に回転軸に嵌装したばねリ
ンフが両ばね受リングに接触して介在する如く配
置してあるから、ばね受リングが回転軸の全周に
わたつて圧縮ばね１０６を押圧し、圧縮ばね１０
６が回転軸１０５を全周にわたつて均等に押圧
し、したがつてシーリング１０４がフローテイン
グシート１０２を全周にわたつて均等に押圧して
接触摺動するため封鎖が確実であり、タンデム形
と同様に一方の封鎖手段に不具合が生じても他方
側の封鎖手段はそれに影響されずに封鎖作用を行
い、安価且つ組付も容易である。
The two sets of sealing means have both spring bearing rings facing each other, and are arranged so that the spring ring fitted on the rotating shaft is interposed between the two spring bearing rings in contact with both spring bearing rings. presses the compression spring 106 around the entire circumference of the rotating shaft, and the compression spring 10
6 presses the rotary shaft 105 evenly over the entire circumference, and therefore the sealing 104 presses the floating sheet 102 evenly over the entire circumference and slides into contact, ensuring reliable sealing. Similarly, even if a problem occurs in one of the sealing means, the sealing means on the other side performs its sealing action without being affected by it, and is inexpensive and easy to assemble.
第１図により、水中ポンプに本考案メカニカル
シールを装着した場合の実施例につき説明する。
図においてW1は、モートル室Ｍ側と潤滑オイル
室Ｏ間の隔壁、W2は、オイル室Ｏとポンプ室Ｐ
側との間の隔壁で着脱自在となつている。
An embodiment in which the mechanical seal of the present invention is installed in a submersible pump will be described with reference to FIG.
In the figure, W 1 is the partition wall between the motor chamber M side and the lubricating oil chamber O, and W 2 is the partition wall between the oil chamber O and the pump chamber P.
It is removable at the partition wall between the sides.
１００は１組の封鎖手段で、上下対向して逆向
きに２組配置して１セツトとしてあり、１組の封
鎖手段１００は以下の構成より成る。即ち、１０
１は隔壁W1またはW2に削設する凹部内に嵌入す
るゴム等緩衝材より成る封止リング、１０２は該
封止リング１０１に嵌入させるとともに回転軸Ｓ
に遊嵌させたフローテイングシート、１０５は回
転軸Ｓに密嵌させたパツキン１０３と前記フロー
テイングシート１０２と対接するシールリング１
０４とを一体的に構成した回転リング、１０７は
該回転リング１０５背面に圧縮ばね１０６を介し
回転軸Ｓに嵌入したばね受リングで、これらをも
つて１組としてある。 Reference numeral 100 designates a set of sealing means, two sets of which are arranged in opposite directions, vertically facing each other, to form one set.One set of sealing means 100 has the following configuration. That is, 10
1 is a sealing ring made of a cushioning material such as rubber that is fitted into a recess cut into the partition wall W 1 or W 2 ; 102 is a sealing ring that is fitted into the sealing ring 101 and is connected to a rotating shaft S;
105 is a seal ring 1 that is in contact with the packing 103 that is tightly fitted on the rotating shaft S and the floating seat 102.
A rotary ring 107 is integrally constructed with the rotary ring 105 and is a spring bearing ring that is fitted onto the rotary shaft S via a compression spring 106 on the back surface of the rotary ring 105, and these constitute one set.
１０８は両封鎖手段１００，１００のばね受リ
ング１０７，１０７間において回転軸Ｓに削設せ
る輪状溝に嵌入させたばねリングで、密着コイル
ばねより成り、両ばね受リング１０７，１０７の
ストツパの役を行わせてあり、該ばねリング１０
８に両ばね受リング１０７，１０７が接触すると
ともに両ばね受リングは相互に接触せぬごとく配
置してある。 Reference numeral 108 denotes a spring ring fitted into an annular groove cut into the rotating shaft S between the spring bearing rings 107, 107 of the two sealing means 100, 100, and is made of a tight coil spring and serves as a stopper for both the spring bearing rings 107, 107. The spring ring 10
Both spring bearing rings 107, 107 are in contact with 8, and both spring bearing rings are arranged so as not to be in contact with each other.
しかして、潤滑オイル室Ｏ内に所定量のオイル
を封入した状態で回転軸Ｓが回転すると、フロー
テイングシート１０２は固定されたまま回転リン
グ１０５が共に回転し、シールリング１０４とフ
ローテイングシート１０２との摺動により該部が
封鎖されるものである。 When the rotating shaft S rotates with a predetermined amount of oil sealed in the lubricating oil chamber O, the rotating ring 105 rotates together with the floating seat 102 fixed, and the seal ring 104 and floating seat 102 rotate together. The part is sealed by sliding with the part.
本考案は、２組の封鎖手段は双方のばね受リン
グを対向させ、両ばね受リング間に回転軸に嵌装
したばねリングが両ばね受リングに接触して介在
する如く配置してあるから、ばね受リングが回転
軸の全周にわたつて圧縮ばる１０６を押圧し、圧
縮ばね１０６が回転リング１０５を全周にわたつ
て均等に押圧し、したがつてシーリング１０４が
フローテイングシート１０２を全周にわたつて均
等に押圧して接触摺動するため封鎖が確実であ
り、タンデム形と同様に一方の封鎖手段に不具合
が生じても他方側の封鎖手段はそれに影響されず
封鎖作用を行い、安価且つ組付の容易である。
In the present invention, the two sets of sealing means are arranged so that both spring bearing rings face each other, and the spring ring fitted on the rotating shaft is interposed between the two spring bearing rings in contact with both spring bearing rings. , the spring bearing ring presses the compression spring 106 over the entire circumference of the rotating shaft, the compression spring 106 presses the rotation ring 105 evenly over the entire circumference, and therefore the sealing 104 completely presses the floating seat 102. Since the seal is pressed evenly over the circumference and slides into contact, sealing is reliable.Similar to the tandem type, even if one sealing means malfunctions, the other sealing means is unaffected and continues its sealing action. It is inexpensive and easy to assemble.
第１図は本考案の１実施例を示す縦断面図、第
２〜４図はそれぞれ第１図における−，−
，−矢視断面図、第５，６図はいずれも従
来構成のものの縦断面図である。
図中、１００は封鎖手段、１０１は封止リン
グ、１０２はフローテイングシート、１０３はパ
ツキン、１０４はシールリング、１０５は回転リ
ング、１０６は圧縮ばね、１０７はばね受リン
グ、１０８はばねリング、Ｍはモートル室、Ｏは
潤滑オイル室、Ｐはポンプ室、Ｓは回転軸、W1，
W2は隔壁を示す。
FIG. 1 is a vertical sectional view showing one embodiment of the present invention, and FIGS. 2 to 4 are − and − in FIG. 1, respectively.
, - arrow sectional view, and FIGS. 5 and 6 are longitudinal sectional views of the conventional structure. In the figure, 100 is a sealing means, 101 is a sealing ring, 102 is a floating sheet, 103 is a packing, 104 is a seal ring, 105 is a rotating ring, 106 is a compression spring, 107 is a spring bearing ring, 108 is a spring ring, M is the motor chamber, O is the lubricating oil chamber, P is the pump chamber, S is the rotating shaft, W 1 ,
W 2 indicates the septum.
Claims (1)
封鎖手段は固定ケーシング側に嵌入する緩衝材よ
り成る封止リング、該封止リングに嵌入させると
ともに回転軸に遊嵌させたフローテイングシー
ト、回転軸に密嵌させたパツキンと前記フローテ
イングシートと対接するシールリングとを一体的
に構成した回転リング、該回転リング背面に圧縮
ばねを介し回転軸に嵌挿したばね受リング、をも
つて構成し、該２組の封鎖手段は双方のばね受リ
ングを対向させ、該両ばね受リング間には回転軸
に穿接した輪状溝にばねリングを嵌装し、該ばね
リングに両ばね受リングが接触するとともに両ば
ね受リングは相互に接触せぬごとく配置したこと
を特徴とする、メカニカルシール。 One set includes two sets of sealing means, and each set of sealing means includes a sealing ring made of a cushioning material that is fitted into the fixed casing side, and a floating sheet that is fitted into the sealing ring and loosely fitted to the rotating shaft. , a rotating ring integrally composed of a packing tightly fitted to the rotating shaft and a seal ring facing the floating seat, and a spring bearing ring fitted to the rotating shaft via a compression spring on the back surface of the rotating ring. The two sets of sealing means have both spring bearing rings facing each other, a spring ring is fitted in an annular groove bored into the rotating shaft between the two spring bearing rings, and both spring bearing rings are fitted in the spring rings. A mechanical seal characterized in that the rings are in contact with each other and both spring bearing rings are arranged so that they do not touch each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985024338U JPH051738Y2 (en) | 1985-02-21 | 1985-02-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985024338U JPH051738Y2 (en) | 1985-02-21 | 1985-02-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61140261U JPS61140261U (en) | 1986-08-30 |
| JPH051738Y2 true JPH051738Y2 (en) | 1993-01-18 |
Family
ID=30518396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985024338U Expired - Lifetime JPH051738Y2 (en) | 1985-02-21 | 1985-02-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051738Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100465767B1 (en) * | 2002-08-10 | 2005-01-13 | 대우정밀 주식회사 | Piston valve assembly of shock absober for auto mobile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4729860U (en) * | 1971-04-26 | 1972-12-05 |
-
1985
- 1985-02-21 JP JP1985024338U patent/JPH051738Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4729860U (en) * | 1971-04-26 | 1972-12-05 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100465767B1 (en) * | 2002-08-10 | 2005-01-13 | 대우정밀 주식회사 | Piston valve assembly of shock absober for auto mobile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61140261U (en) | 1986-08-30 |
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