JPH0241807Y2 - - Google Patents
Info
- Publication number
- JPH0241807Y2 JPH0241807Y2 JP1982103608U JP10360882U JPH0241807Y2 JP H0241807 Y2 JPH0241807 Y2 JP H0241807Y2 JP 1982103608 U JP1982103608 U JP 1982103608U JP 10360882 U JP10360882 U JP 10360882U JP H0241807 Y2 JPH0241807 Y2 JP H0241807Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- case
- leakage
- retaining ring
- seal
- 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
Landscapes
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Installation Of Bus-Bars (AREA)
Description
【考案の詳細な説明】
この考案は、開閉器に関し、さらにいえば、開
閉器の回転シール構造の改良に係るものである。[Detailed Description of the Invention] This invention relates to a switch, and more specifically, to an improvement in the rotary seal structure of the switch.
通常の電力用開閉器は、第１図Ａ，Ｂに示すよ
うに、操作箱１上の３相連結部ケース２からＵ，
Ｖ，Ｗ相の極柱３，３，３を直立せしめた構成で
ある。さらに詳しくいえば、第２図に示すとお
り、極柱３はその上部に真空しや断器４を有し、
その可動接点側の絶縁ロツド５が、SF6等の絶縁
ガスを封入した圧接機構ケース６内において、圧
接機構７と連係せられている。そして、圧接機構
ケース６内の圧接機構７と、３相連結部ケース２
内の操作機構に連なるリンク８とが回転軸９を介
して連結されている。 A normal power switch, as shown in FIGS.
This is a configuration in which the pole columns 3, 3, 3 of the V and W phases are made to stand upright. More specifically, as shown in FIG.
The insulating rod 5 on the movable contact side is linked to a pressure contact mechanism 7 within a pressure contact mechanism case 6 filled with an insulating gas such as SF6 . Then, the pressure welding mechanism 7 in the pressure welding mechanism case 6 and the three-phase connection part case 2
A link 8 connected to an internal operating mechanism is connected via a rotating shaft 9.
さらにその連結構造の詳細は、第３図に示すと
おり、回転軸９は、圧接機構ケース６の軸受筒６
ａ中に通し、２個のベアリング１０，１０で回転
自在に支持させ、前記２個のベアリング１０，１
０間にはシールケース１１とパツキン押えリング
１２とを設置し、シールケース１１の右端側外径
面部にＯリング１３を、内径面側にはパツキン１
４をそれぞれ設置している。図中１５，１５はベ
アリング１０，１０の止め輪である。 Furthermore, the details of the connection structure are as shown in FIG.
a, rotatably supported by two bearings 10, 10, and the two bearings 10, 1
A seal case 11 and a seal retaining ring 12 are installed between the seal case 11 and the seal case 11. An O-ring 13 is installed on the outer diameter side of the right end of the seal case 11, and a seal 1 is installed on the inner diameter side of the seal case 11.
4 are installed respectively. In the figure, reference numerals 15, 15 are retaining rings for the bearings 10, 10.
上記従来の回転シール構造の場合、圧接機構ケ
ース６内に封入した絶縁ガスのリークを完全に防
ぐことを目的として構成しているが、実際には多
かれ少なかれリークは生じており、そのリーク測
定、リーク量測定ができず、リークの状態がよく
分からず、適切な対処に欠ける欠点があつた。 In the case of the above-mentioned conventional rotary seal structure, the purpose is to completely prevent leakage of the insulating gas sealed in the pressure welding mechanism case 6, but in reality, leakage occurs more or less, and the leakage measurement and The problem was that it was not possible to measure the amount of leakage, the state of the leakage was unclear, and there was a lack of appropriate countermeasures.
そこでこの考案の目的は、回転シール構造部分
における絶縁ガスのリーク測定が可能で、保守点
検の容易な構成に改良した開閉器を提供すること
にある。 Therefore, an object of this invention is to provide an improved switch that allows leakage measurement of insulating gas in the rotary seal structure and has an improved structure that facilitates maintenance and inspection.
次に、この考案を第４図に示す実施例により説
明する。 Next, this invention will be explained with reference to an embodiment shown in FIG.
第４図は、この考案の実施例である開閉器にお
ける連結構造（回転シール構造）部分の詳細を示
す。 FIG. 4 shows details of the connection structure (rotary seal structure) in a switch which is an embodiment of this invention.
この構成の大部分は、第３図に示す従来例と共
通する。即ち、圧接機構ケース６の軸受筒６ａ内
に通したベアリング１０，１０で回転自在に支持
させ、２個のベアリング１０，１０間にシールケ
ース１１と保持輪１６とを設置し、更にシールケ
ース１１の左側外周部を小径部１１′となし、軸
受筒６ａとの間にガス溜部ａを形成し、シールケ
ース１１の右端側外径面部にＯリング１３を、左
端側内径面部にはパツキン１４をそれぞれ設置す
る。また、保持輪１６の内、外径面部にもＯリン
グ１７，１８を設置し、この回転軸９の両端部に
圧接機構レバー７ａと、圧接機構のリンク８とが
連結されるようにしている。 Most of this configuration is common to the conventional example shown in FIG. That is, the bearings 10, 10 passed through the bearing cylinder 6a of the pressure welding mechanism case 6 are rotatably supported, the seal case 11 and the retaining ring 16 are installed between the two bearings 10, 10, and the seal case 11 is installed between the two bearings 10, 10. The left outer peripheral part of the seal case 11 is formed as a small diameter part 11', and a gas reservoir part a is formed between the seal case 11 and the bearing cylinder 6a. Set up each. Furthermore, O-rings 17 and 18 are installed on the inner and outer diameter surfaces of the retaining ring 16, so that the pressure contact mechanism lever 7a and the link 8 of the pressure contact mechanism are connected to both ends of the rotating shaft 9. .
前記のシールケース１１には、その内径面側に
パツキン１４、外径面側にＯリング１３を設けて
シールケース１１の内、外周面からの絶縁ガスの
リークを防止している。パツキン１４は回転シー
ル用で、回転軸９が回転するときもシール機能を
発揮する必要があり、一般的にはＵ字形のパツキ
ンを使用し、また回転部はリークしやすいので、
パツキンは図のように複数個使用される。Ｏリン
グ１３はシールケース１１の外径面側からのリー
クを防止する。また、保持輪１６は、シールケー
ス１１の絶縁ガスのリーク方向にみて前方位置
（シールケースの連結部ケース側）の端の回転軸
上に設置され、その内径面と外径面にＯリング１
７および１８を設け、絶縁ガスが気中側（連結部
ケース２側）に逃げるのを防止し、同時にリーク
する絶縁ガスを後述のリーク測定口に留める役目
をする。更にシールケース１１の外径側であつ
て、Ｏリング１３と保持輪１６との略中間位置、
即ち軸受筒６ａの略中間で、ガス溜部ａに連通す
る部位に、軸受筒６ａを半径方向に貫通するリー
ク測定口１９を設け、これにシートパツキン２０
を介してリーク測定用アダプタ２１を接続して成
る。 The seal case 11 is provided with a packing 14 on its inner diameter side and an O-ring 13 on its outer diameter side to prevent leakage of insulating gas from the inner and outer circumferential surfaces of the seal case 11. The gasket 14 is for rotary sealing, and it needs to perform the sealing function even when the rotating shaft 9 rotates, so generally a U-shaped gasket is used, and since the rotating part is prone to leaks,
Multiple packings are used as shown in the figure. The O-ring 13 prevents leakage from the outer diameter side of the seal case 11. In addition, the retaining ring 16 is installed on the rotating shaft at the end of the seal case 11 at the front position (on the case side of the connecting part of the seal case) when viewed in the direction of leakage of the insulating gas, and an O-ring is attached to the inner and outer diameter surfaces of the retaining ring 16.
7 and 18 are provided to prevent the insulating gas from escaping into the air (to the side of the connecting part case 2), and at the same time serve to stop the leaking insulating gas at a leakage measurement port, which will be described later. Further, on the outer diameter side of the seal case 11, a position approximately midway between the O-ring 13 and the retaining ring 16,
That is, a leak measurement port 19 that penetrates the bearing sleeve 6a in the radial direction is provided approximately in the middle of the bearing sleeve 6a at a portion that communicates with the gas reservoir part a, and the seat packing 20
A leak measurement adapter 21 is connected through the .
しかして、圧接機構ケース６内に封入したSF4
等の絶縁ガスのリークは、矢印イで示すように連
結部ケース２側（気中側）に生ずる。即ち、一方
は回転軸９との接触面側、他方は軸受筒６ａとの
接触面側から生ずる。前者は、シールケース１１
およびパツキン１４の夫々の内周面と回転軸９と
の接触面、ならびにパツキン１４の外周面とシー
ルケース１１との接触面を通り、また後者はシー
ルケース１１の外径面およびＯリング１３と軸受
筒６ａの内径面ならびにガス溜部ａを通る。この
両者のリークガスは保持輪１６に衝突してＯリン
グ１７および１８の内、外周面側からリークしよ
うとする。 Therefore, the SF 4 enclosed in the pressure welding mechanism case 6
Leakage of insulating gas occurs on the connection case 2 side (air side) as shown by arrow A. That is, one side is generated from the side of the contact surface with the rotating shaft 9, and the other side is generated from the side of the contact surface with the bearing sleeve 6a. The former is seal case 11
and the contact surface between the inner circumferential surface of the packing 14 and the rotating shaft 9, and the contact surface between the outer circumferential surface of the packing 14 and the seal case 11, and the latter passes through the outer circumferential surface of the seal case 11 and the O-ring 13. It passes through the inner diameter surface of the bearing cylinder 6a and the gas reservoir part a. These two leak gases collide with the retaining ring 16 and try to leak from the inner and outer peripheral surfaces of the O-rings 17 and 18.
しかし、微視的にみれば、Ｏリング１７，１８
からリークはするが、リーク測定口１９へ流れる
流体抵抗はほとんどなく、これに較べＯリング１
７，１８は気中側に設けられており、且つ密接し
ているので、リーク測定口１９よりはるかに流体
抵抗は高いため、リークする絶縁ガスはほとんど
抵抗の少ないガス溜部ａに溜まり、リーク測定口
に流れる。 However, microscopically, O-rings 17 and 18
Although leakage occurs from the O-ring 1, there is almost no resistance to fluid flowing to the leak measurement port 19.
7 and 18 are provided on the air side and are in close contact with each other, so the fluid resistance is much higher than that of the leak measurement port 19. Therefore, most of the leaking insulating gas collects in the gas reservoir part a, which has low resistance, and leaks. Flows into the measurement port.
従つて、この回転シール構造部分に生じた絶縁
ガスのリークは、全てリーク測定口１９を通じて
とらえることができ、リーク量、絶縁ガスの濃度
を測定して回転シール部でのリークの状態を知る
ことができるのである。 Therefore, any insulating gas leak that occurs in this rotary seal structure can be detected through the leak measurement port 19, and the leakage state in the rotary seal can be determined by measuring the amount of leakage and the concentration of the insulating gas. This is possible.
なお、リーク測定口１９とリーク測定用アダプ
タ２１との接続部にパツキン付きの盲をしておく
と、ガスシールに対して二重のシール効果を奏し
て好都合である。 Note that it is advantageous to provide a seal with a gasket at the connection between the leak measurement port 19 and the leak measurement adapter 21, since this provides a double sealing effect for the gas seal.
従来の回転シール構造は、第３図に示すように
圧接機構ケース６内の絶縁ガスのリークを完全に
防ぐことのみを考慮して構成されているため、回
転軸９と軸受筒６ａとの間には、シールケース１
１、パツキン押えリング１２およびＯリング１
３、パツキン１４等が設けられており、どこにも
空隙を無いような構成となつていた。従つてこの
回転シール部分で絶縁ガスのリークは測定できな
い、というのが当業者の既製概念であり、実際に
リークが生ずると分解等の手段によつて検査して
いた。 As shown in FIG. 3, the conventional rotary seal structure is constructed with the sole purpose of completely preventing leakage of insulating gas within the pressure welding mechanism case 6. Seal case 1
1. Packing retaining ring 12 and O-ring 1
3. A packing 14 etc. were provided, and the structure was such that there were no gaps anywhere. Therefore, it is a conventional concept among those skilled in the art that leakage of insulating gas cannot be measured at this rotary seal portion, and when leakage actually occurs, it is inspected by means such as disassembly.
しかし、本考案は上述したように、絶縁ガスの
リーク方向にみてパツキンより前方位置に保持輪
を設置し、該保持輪の内外面にＯリングを装着
し、それよりも前方に位置するＯリングとの中間
部位において、軸受筒の半径方向に貫通するリー
ク測定口を設けたことを特徴とする開閉器を要旨
とするので、次の効果を奏する。回転軸の動作
によるリーク量測定が可能である。実機におけ
る回転シール部リーク量を分解等の作業を要しな
いで測定可能である。現地に据え付け後も、リ
ーク量測定が可能である。従つて、出荷時およ
び現地据え付け後の保守点検を、特に重要部のガ
スリーク測定に関して非常に簡単に行うことがで
き、機器の信頼性を向上せしめることができる。 However, as described above, in the present invention, a retaining ring is installed at a position forward of the gasket when viewed in the direction of insulating gas leakage, O-rings are attached to the inner and outer surfaces of the retaining ring, and O-rings located ahead of the retaining ring are installed on the inner and outer surfaces of the retaining ring. Since the gist of the switch is characterized in that a leak measurement port is provided that penetrates the bearing cylinder in the radial direction at an intermediate location between the bearing cylinder and the bearing cylinder, the following effects are achieved. It is possible to measure the amount of leakage based on the movement of the rotating shaft. It is possible to measure the amount of leakage from the rotary seal in an actual machine without the need for disassembly or other work. Leakage measurement is possible even after installation on site. Therefore, maintenance inspections at the time of shipment and after installation at the site can be performed very easily, especially regarding gas leak measurement in important parts, and the reliability of the equipment can be improved.
第１図Ａ，Ｂは電力用開閉器の正面図と側面
図、第２図は同前の垂直断面図、第３図は同前の
連結構造部分の断面図、第４図はこの考案の実施
例である連結構造部分の断面図である。
６……圧接機構ケース、６ａ……軸受筒、７…
…圧接機構、８……操作機構リンク、９……回転
軸、１３……Ｏリング、１４……パツキング。
Figures 1A and B are front and side views of the power switch, Figure 2 is a vertical sectional view of the same, Figure 3 is a sectional view of the connection structure part of the same, and Figure 4 is the structure of this device. It is a sectional view of a connection structure part which is an example. 6... Pressure contact mechanism case, 6a... Bearing tube, 7...
... Pressure contact mechanism, 8 ... Operation mechanism link, 9 ... Rotating shaft, 13 ... O ring, 14 ... Packing.
Claims (1)
機構７と外部の操作機構リング８とを回転軸９を
介して連結すると共に、圧接機構ケース６の軸受
筒６ａ内で前記回転軸９をベアリング１０により
回転自在に支持せしめ、かつ、シールケース１１
の内周および外周に設けたパツキン１４およびＯ
リング１３で軸封をして成る開閉器において、 前記シールケース１１の操作機構リング８側端
の回転軸上に保持輪１６を設置し、該保持輪１６
の内外面にＯリング１７，１８を装着するととも
に、シールケース１１の外周でＯリング１３より
保持輪１６側にガス溜部ａを設け、前記保持輪１
６とＯリング１３の中間で且つガス溜部ａと連通
する部位に、軸受筒６ａをその半径方向に貫通す
るリーク測定口１９を設け、該リーク測定口１９
を通して絶縁ガスのリークを測定するようにした
ことを特徴とする開閉器。[Claims for Utility Model Registration] The pressure contact mechanism 7 in the pressure contact mechanism case 6 filled with insulating gas and the external operating mechanism ring 8 are connected via a rotating shaft 9, and the The rotating shaft 9 is rotatably supported by a bearing 10, and the seal case 11
The gaskets 14 and O provided on the inner and outer peripheries of
In a switch having a shaft sealed with a ring 13, a retaining ring 16 is installed on the rotating shaft at the end of the operating mechanism ring 8 of the seal case 11, and the retaining ring 16
O-rings 17 and 18 are attached to the inner and outer surfaces of the retaining ring 1, and a gas reservoir part a is provided on the outer periphery of the seal case 11 closer to the retaining ring 16 than the O-ring 13.
A leak measurement port 19 that penetrates the bearing sleeve 6a in the radial direction is provided between the bearing sleeve 6a and the O-ring 13 and at a portion that communicates with the gas reservoir portion a.
A switch characterized in that the leakage of insulating gas is measured through the switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10360882U JPS599447U (en) | 1982-07-08 | 1982-07-08 | switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10360882U JPS599447U (en) | 1982-07-08 | 1982-07-08 | switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS599447U JPS599447U (en) | 1984-01-21 |
| JPH0241807Y2 true JPH0241807Y2 (en) | 1990-11-07 |
Family
ID=30243644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10360882U Granted JPS599447U (en) | 1982-07-08 | 1982-07-08 | switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS599447U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH037003Y2 (en) * | 1985-11-20 | 1991-02-21 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51118962U (en) * | 1975-03-20 | 1976-09-27 |
-
1982
- 1982-07-08 JP JP10360882U patent/JPS599447U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS599447U (en) | 1984-01-21 |
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