JPS6144355Y2 - - Google Patents
Info
- Publication number
- JPS6144355Y2 JPS6144355Y2 JP15854580U JP15854580U JPS6144355Y2 JP S6144355 Y2 JPS6144355 Y2 JP S6144355Y2 JP 15854580 U JP15854580 U JP 15854580U JP 15854580 U JP15854580 U JP 15854580U JP S6144355 Y2 JPS6144355 Y2 JP S6144355Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- plate
- movable shaft
- electrode
- welding
- 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
- 238000003466 welding Methods 0.000 claims description 28
- 238000005452 bending Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Description
【考案の詳細な説明】
本考案は真空バルブの可動軸の軸受け取付構造
を改良した真空バルブに関する。一般に真空バル
ブは内部を真空にした絶縁容器内に１対の電極を
収納し、この電極を真空保持状態で接離可能にす
るため金属ベローズを有して構成している。そし
て、このベローズは伸縮自在となる様に厚さ0.1
〜0.2mm程度の薄板でじや腹状に形成されている
ので、不規則的な方向への伸縮運動には弱く、真
空バルブを操作機構に組み込んで動作させる場
合、ベローズが直線運動をする様にベローズにつ
ながる可動軸を軸受けで支えて構成している。こ
の軸受けに沿つて可動軸が直線運動し、従つてベ
ローズを直線運動させることができるということ
から、この軸受けの持つ役割りは大きく、開閉動
作中にはずれたりせぬ様、その取り付けは、強固
に行なう必要がある。[Detailed Description of the Invention] The present invention relates to a vacuum valve having an improved bearing mounting structure for a movable shaft of the vacuum valve. Generally, a vacuum valve is constructed by housing a pair of electrodes in an insulating container whose interior is evacuated, and having a metal bellows to enable the electrodes to be connected and separated while maintaining the vacuum. And, this bellows has a thickness of 0.1 so that it can be expanded and contracted freely.
Since it is formed into a bellows shape with a thin plate of about 0.2 mm, it is susceptible to expansion and contraction movements in irregular directions, so when the vacuum valve is incorporated into the operating mechanism and operated, the bellows will move in a straight line. The movable shaft connected to the bellows is supported by a bearing. The movable shaft moves linearly along this bearing, and therefore the bellows can move linearly, so this bearing plays an important role, and its installation must be strong so that it does not come off during opening and closing operations. It is necessary to do so.
従来の軸受け取り付け構造を、第１図ａ，ｂに
示した真空バルブを参照しながら説明する。 A conventional bearing mounting structure will be described with reference to the vacuum valve shown in FIGS. 1a and 1b.
図中、１は絶縁容器で、その両端に取り付けら
れた端板２ａ，２ｂで真空容器が構成されてい
る。３ａ，３ｂは電極であり、その周囲を取り巻
く様にアークシールド５を備えている。一方の電
極３ｂには電路となる固定軸４が取り付けられて
おり前記一方の端板２ｂを密に貫通し、外部に突
き出て電路を構成している。 In the figure, 1 is an insulating container, and end plates 2a and 2b attached to both ends of the insulating container constitute a vacuum container. Reference numerals 3a and 3b are electrodes, and an arc shield 5 is provided to surround the electrodes. A fixed shaft 4, which serves as an electric path, is attached to one electrode 3b, and closely penetrates the one end plate 2b, protruding to the outside to form an electric path.
又、他方の電極３ａには可動軸６が取り付けら
れ電路を構成しており、この可動軸６と前記一方
の端板２ａとの間にはベローズ７を設け、真空を
保持した状態で可動軸６の上下運動を可能にして
いる。 Further, a movable shaft 6 is attached to the other electrode 3a to form an electric path, and a bellows 7 is provided between the movable shaft 6 and the one end plate 2a, and the movable shaft is attached to the other electrode 3a while maintaining a vacuum. 6 vertical movements are possible.
８は軸受けであり、外表面に軸方向にのびる突
部６ａを持つ可動軸６を内挿し、この可動軸６の
上下運動を直線的に運動させ、ベローズ７が不規
則な方向へ伸縮することを防止している。 Reference numeral 8 denotes a bearing, into which a movable shaft 6 having a protrusion 6a extending in the axial direction is inserted into the outer surface, and the vertical movement of this movable shaft 6 is caused to move linearly, so that the bellows 7 expands and contracts in irregular directions. is prevented.
この軸受け８を前記端板２ａに設けた窪み部分
に配置し、軸受け８より径大に形成した円板状の
押え板９でその端部を押え、この押え板９の周辺
部分を端板２ａに点溶接々合することにより固定
している。しかして、この点溶接の方法を第２図
ａを用いて説明すると、真空バルブの組み立てが
完了してから点溶接機１０の一方の電極１１を端
板２ａの上部に接触させ、その位置から約10mm程
度離れた押え板９の表面に他方の電極１２を接触
させて電流を流し、点溶接を行ない、軸受け８を
端板２ａに固定させるものである。尚軸受け８及
び押え板９の形状は、夫々第２図ｂ及び第２図
ｃ，ｄに示すとおりである。 This bearing 8 is placed in a recess provided in the end plate 2a, and its end is held down by a disc-shaped holding plate 9 formed with a diameter larger than that of the bearing 8, and the peripheral portion of this holding plate 9 is placed on the end plate 2a. It is fixed by spot welding. To explain this spot welding method with reference to FIG. The other electrode 12 is brought into contact with the surface of the presser plate 9 at a distance of about 10 mm, a current is applied, spot welding is performed, and the bearing 8 is fixed to the end plate 2a. The shapes of the bearing 8 and the holding plate 9 are as shown in FIG. 2b and FIGS. 2c and d, respectively.
ところで上記従来の軸受け取付け部の寸法的な
関係は次の様なものである。即ち第３図ａで示す
ａ寸法をｂ寸法よりも大きく設けていた。これ
は、もしａ寸法をｂ寸法よりも小さくすれば、押
え板９を取り付けても、ガイド８と押え板９との
間に隙間ができるため、軸受け８を固定すること
はできないし、又、ａ寸法とｂ寸法を同一にする
ことは加工公差の点で不可能なためである。 Incidentally, the dimensional relationship of the above-mentioned conventional bearing mounting portion is as follows. That is, dimension a shown in FIG. 3a was set larger than dimension b. This is because if the a dimension is made smaller than the b dimension, even if the presser plate 9 is attached, there will be a gap between the guide 8 and the presser plate 9, so the bearing 8 cannot be fixed. This is because it is impossible to make dimension a and dimension b the same in terms of processing tolerance.
このため軸受け８の取付は、第３図ｂに示す様
に押え板９の端部は第３図ａ中のａ寸法とｂ寸法
の差の分、折り曲げられた状態で端板２ａと点溶
接されていたのである。 Therefore, when installing the bearing 8, as shown in Fig. 3b, the end of the holding plate 9 is bent by the difference between dimensions a and b in Fig. 3a, and spot welded to the end plate 2a. It had been done.
しかしながら、この様な方法を採用すると、押
え板９を点溶接する際に点溶接機の電極を押し当
て、押え板端部を折り曲げなければならず、この
押え板は円板状であるが故、折り曲げにくく作業
性の上から好ましくなかつた。又周知の如く点溶
接をするためには、電極により加圧しなければな
らないが、円板状の押え板端部の径方向のどの位
置に電極を当接させるかによつて当然折り曲げに
要する力が異なり、溶接状態が不均一になりやす
く、溶接不良の発生が心配されていた。 However, if such a method is adopted, when spot welding the holding plate 9, the electrode of the spot welding machine must be pressed against it and the end of the holding plate must be bent. , which was difficult to bend and was unfavorable from the viewpoint of workability. Also, as is well known, in order to perform spot welding, pressure must be applied with an electrode, but the force required for bending naturally depends on where in the radial direction the electrode is brought into contact with the end of the disc-shaped presser plate. There was a concern that the welding conditions would be uneven and welding defects would occur.
更に、押え板９と端板２ａとの点溶接は円周上
数ケ所等配（例えば４等配）に行なうのが通常で
あるが、従来の様に押え板が円板状であると、溶
接箇所の位置決めが困難となり、不均等になり易
いばかりでなく、作業がしにくいという欠点があ
つた。そして溶接箇所が不均等になると、可動軸
を動作させた場合に、溶接部へ加わる応力が不均
一になり、特定の溶接部に集中して応力が加わる
という点からも好ましくない。 Further, spot welding between the holding plate 9 and the end plate 2a is normally performed at several equally spaced locations on the circumference (for example, four equally spaced locations), but if the holding plate is disc-shaped as in the past, This has disadvantages in that it is difficult to position the welding location, which tends to result in uneven welding, and is also difficult to work with. If the welding points are uneven, the stress applied to the welded portion will be uneven when the movable shaft is operated, which is also undesirable because the stress will be concentrated on a specific welded portion.
本考案は上記従来欠点を解消するために提案さ
れたものであり、点溶接時、押え板への圧接を容
易にし、且つ、溶接箇所の位置決めを簡単に行な
うことができる押え板を備え、これにより作業性
が良く、溶接に対する信頼性の高い軸受け取付け
を行なうことができるようにした真空バルブを得
ることを目的とする。 The present invention was proposed in order to eliminate the above-mentioned conventional drawbacks, and includes a presser plate that facilitates pressure welding to the presser plate during spot welding and allows for easy positioning of the welding location. It is an object of the present invention to provide a vacuum valve which has good workability and enables reliable mounting of a bearing against welding.
以下、本考案の一実施例を図面を参照しながら
説明する。第４図は本考案によるガイド取付け部
の平面図である。本図に於る特徴は押え板９の外
周部に切り欠き部９ａ，９ｂを設ける点にある。
即ち、押え板９の外周部であつて、互に90゜離間
した位置に夫々隣り合う２個の切り欠き部９ａ，
９ｂを設ける。この為この切り欠き部９ａ，９ｂ
間には突出部９ｃが形成されることになる。そし
て押え板９と端板２ａ間は、図中の突出部９ｃに
記載した×印箇所で行なう。そして上記構成にお
いて、点溶接を行なうに際しては、予め点溶接機
の２電極の位置関係を所定の値に設定しておくこ
とにより、溶接点の位置決めを正確に行なうこと
ができるのである。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 is a plan view of the guide attachment part according to the present invention. A feature of this figure is that notches 9a and 9b are provided on the outer periphery of the presser plate 9.
That is, there are two notches 9a adjacent to each other at positions 90° apart from each other on the outer periphery of the presser plate 9.
9b is provided. For this reason, these notches 9a, 9b
A protrusion 9c will be formed in between. The connection between the presser plate 9 and the end plate 2a is made at the location marked with an x on the protrusion 9c in the figure. In the above configuration, when performing spot welding, by setting the positional relationship between the two electrodes of the spot welding machine to a predetermined value in advance, it is possible to accurately position the welding point.
即ち、一方の電極を押え板９の切り欠き部９ａ
に添わせて端板２ａに配置するだけで（図中
部）他方の電極は突出部９ｃの所定の位置に配置
させることが可能となる。この突出部９ｃは細長
い板状であるため、点溶接機の電極を押し当てる
ことにより容易に折り曲げることができるばかり
でなく、電極が当接する位置は常に一定している
ため、折り曲げに要する力も一定しており、点溶
接時の加圧をより均一化することができ、安定し
た溶接々合を為し得るのである。 That is, one electrode is held in the notch 9a of the holding plate 9.
The other electrode can be placed at a predetermined position on the protrusion 9c by simply placing it on the end plate 2a along with the protrusion 9c (middle of the figure). Since this protrusion 9c is in the shape of an elongated plate, it can be easily bent by pressing the electrode of a spot welder against it, and since the position where the electrode contacts is always constant, the force required for bending is also constant. Therefore, the pressure during spot welding can be made more uniform, and stable welding can be achieved.
又、通常押え板９はプレス加工により製作する
ため、前記切り欠き部９ａ，９ｂを所望の数、等
配することができる。従つて点溶接機の片方の電
極を切り欠き部９ａに合わせることにより点溶接
位置が容易に決定でき、作業性がよい上安定した
溶接を行なうことができるのである。 Further, since the presser plate 9 is usually manufactured by press working, the desired number of cutouts 9a and 9b can be equally spaced. Therefore, by aligning one electrode of the spot welding machine with the notch 9a, the spot welding position can be easily determined, and stable welding can be performed with good workability.
尚、本考案は前記実施例に限定されることな
く、その主旨を変更せずに種々応用することがで
きる。即ち第５図は本考案の他の実施例である。
この実施例では押え板９の外周部に略円形の切り
欠き９ｄを等間隔に４個設けたものである。この
実施例にあつては点溶接機の一方の電極を切り欠
き９ｄ内の図示印に配置させ、他方の電極は押
え板９の突出部となる図示×印に当接することに
より、この×印部で押え板９と端板２ａ間を溶接
できる。この場合も第４図の実施例で説明した場
合と同様な効果が得られる。 It should be noted that the present invention is not limited to the embodiments described above, and can be applied in various ways without changing its gist. That is, FIG. 5 shows another embodiment of the present invention.
In this embodiment, four approximately circular notches 9d are provided at equal intervals on the outer periphery of the presser plate 9. In this embodiment, one electrode of the spot welding machine is placed on the illustrated mark in the notch 9d, and the other electrode is brought into contact with the illustrated It is possible to weld between the presser plate 9 and the end plate 2a at this point. In this case as well, the same effect as described in the embodiment of FIG. 4 can be obtained.
以上説明した様に本考案によれば外周部に切り
欠き部と、この切り欠き部を設けることにより出
来る突出部からなる押え板を用いることにより、
信頼性の高い溶接々合をとり行なうことを可能と
し、従つて軸受けの固定を強固に行なうことがで
きる。そのため、多数回にわたる開閉運動に対し
ても信頼性の高い軸受け取付けを為し得、寿命的
に優れた真空バルブを提供することができる。 As explained above, according to the present invention, by using a presser plate consisting of a notch on the outer periphery and a protrusion formed by providing this notch,
It is possible to perform highly reliable welding, and therefore the bearing can be firmly fixed. Therefore, the shaft can be mounted with high reliability even after many opening and closing movements, and a vacuum valve with excellent longevity can be provided.
第１図ａ及びｂは従来の真空バルブの平面図及
び断面図、第２図ａは第１図の要部の断面図、第
２図ｂは軸受けの斜視図、第２図ｃ及びｄは押え
板の平面図及び断面図、第３図ａ及びｂは第２図
の組立を説明するための夫々説明図、第４図は本
考案による押え板の一実施例を示す平面図、第５
図は本案の他の実施例を示す平面図である。
１……絶縁容器、２ａ，２ｂ……端板、３ａ，
３ｂ……電極、４……固定軸、５……アークシー
ルド、６……可動軸、７……ベローズ、８……軸
受け、９……押え板、９ａ，９ｂ……切り欠き
部、９ｃ……突出部、１０……点溶接機、１１，
１２……電極。
Figures 1a and b are a plan view and a sectional view of a conventional vacuum valve, Figure 2a is a sectional view of the main part of Figure 1, Figure 2b is a perspective view of the bearing, and Figures 2c and d are A plan view and a sectional view of the presser plate, FIGS. 3a and 3b are explanatory views for explaining the assembly shown in FIG. 2, FIG. 4 is a plan view showing an embodiment of the presser plate according to the present invention, and FIG.
The figure is a plan view showing another embodiment of the present invention. 1... Insulating container, 2a, 2b... End plate, 3a,
3b... Electrode, 4... Fixed shaft, 5... Arc shield, 6... Movable shaft, 7... Bellows, 8... Bearing, 9... Holding plate, 9a, 9b... Notch, 9c... ... protrusion, 10 ... spot welding machine, 11,
12...electrode.
Claims (1)
た真空容器内に一対の電極を設け、この電極を接
離自在にするため少なくとも一方の電極に可動軸
を取付け、この可動軸と端板との間にベローズを
設け、前記可動軸を内挿する軸受けを、端板に係
合させ押え板にてこの軸受けを固定する真空バル
ブに於て、 前記押え板の外周部分に複数個の切り欠き部を
設けこの切り欠き部を位置決め部分として切り欠
き部により形成される突出部と前記端板間を溶接
により固着するようにしたことを特徴とする真空
バルブ。[Claims for Utility Model Registration] A pair of electrodes is provided in a vacuum container consisting of an insulating container and both ends of which are closed with end plates, and at least one of the electrodes is provided with a movable shaft in order to allow the electrodes to move freely toward and away from each other. In the vacuum valve in which a bellows is installed between the movable shaft and the end plate, a bearing into which the movable shaft is inserted is engaged with the end plate, and this bearing is fixed by a retainer plate, the retainer plate A vacuum valve characterized in that a plurality of notches are provided on the outer circumferential portion of the vacuum valve, and the notches are used as positioning portions, and the protrusion formed by the notches and the end plate are fixed by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15854580U JPS6144355Y2 (en) | 1980-11-07 | 1980-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15854580U JPS6144355Y2 (en) | 1980-11-07 | 1980-11-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5782037U JPS5782037U (en) | 1982-05-20 |
| JPS6144355Y2 true JPS6144355Y2 (en) | 1986-12-13 |
Family
ID=29517611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15854580U Expired JPS6144355Y2 (en) | 1980-11-07 | 1980-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6144355Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8269130B2 (en) * | 2010-02-24 | 2012-09-18 | Eaton Corporation | Retainer, vacuum interrupter, and electrical switching apparatus including the same |
-
1980
- 1980-11-07 JP JP15854580U patent/JPS6144355Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5782037U (en) | 1982-05-20 |
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