JPH0221302U - - Google Patents
Info
- Publication number
- JPH0221302U JPH0221302U JP9950888U JP9950888U JPH0221302U JP H0221302 U JPH0221302 U JP H0221302U JP 9950888 U JP9950888 U JP 9950888U JP 9950888 U JP9950888 U JP 9950888U JP H0221302 U JPH0221302 U JP H0221302U
- Authority
- JP
- Japan
- Prior art keywords
- explosion
- proof
- valve
- electro
- sealed container
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 2
Landscapes
- Servomotors (AREA)
Description
第１図は従来技術に係る防爆型電空ポジシヨナ
の断面説明図、第２図は従来技術に係る電空ポジ
シヨナのブロツク図、第３図は本考案に係る電空
ポジシヨナの一部省略断面説明図、第４図は当該
電空ポジシヨナのブロツク図、第５図は当該電空
ポジシヨナにおける伝達軸の保持に関する構造例
を示す一部省略断面説明図、第６図は第５図に示
す伝達軸保持構造の中、板ばねの正面図である。
１００…防爆型電空ポジシヨナ、１０２…電気
的駆動部材、１０４…本体部ケース、１０６…端
子板、１１０…機械的駆動部材。
Fig. 1 is a cross-sectional explanatory diagram of an explosion-proof electro-pneumatic positioner according to the prior art, Fig. 2 is a block diagram of an electro-pneumatic positioner according to the conventional technology, and Fig. 3 is a partially omitted cross-sectional diagram of an electro-pneumatic positioner according to the present invention. Fig. 4 is a block diagram of the electro-pneumatic positioner, Fig. 5 is a partially omitted cross-sectional explanatory diagram showing an example of a structure related to holding the transmission shaft in the electro-pneumatic positioner, and Fig. 6 is the transmission shaft shown in Fig. 5. FIG. 3 is a front view of a leaf spring in the holding structure. DESCRIPTION OF SYMBOLS 100... Explosion-proof electropneumatic positioner, 102... Electric drive member, 104... Main body case, 106... Terminal board, 110... Mechanical drive member.
Claims (1)
ステム位置を入力電気信号に応じてフイードバツ
ク制御する防爆型電空ポジシヨナにおいて、防爆
密閉容器内には前記電空ポジシヨナを構成する電
気的駆動部材を収容し、防爆密閉容器外には前記
パイロツトリレーとバルブを配設して、前記防爆
密閉容器の壁部に少なくとも２個の貫通孔を設け
、所定の防爆隙間および奥行を介して一方の貫通
孔に前記パイロツトリレーの弁に連動するステム
の変位を伝達する軸を挿通すると共に他方の貫通
孔に前記バルブのステム変位を伝達する軸を挿通
するように構成することを特徴とする防爆型電空
ポジシヨナ。 In an explosion-proof electro-pneumatic positioner that feedback-controls the stem position of a valve driven by a pilot relay according to an input electric signal, an electric drive member constituting the electro-pneumatic positioner is housed in an explosion-proof sealed container, The pilot relay and the valve are disposed outside the explosion-proof sealed container, and at least two through holes are provided in the wall of the explosion-proof sealed container, and the pilot is inserted into one of the through holes through a predetermined explosion-proof gap and depth. An explosion-proof electro-pneumatic positioner characterized in that a shaft for transmitting the displacement of a stem linked to a valve of a relay is inserted therethrough, and a shaft for transmitting the displacement of the stem of the valve is inserted through the other through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9950888U JPH0221302U (en) | 1988-07-27 | 1988-07-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9950888U JPH0221302U (en) | 1988-07-27 | 1988-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221302U true JPH0221302U (en) | 1990-02-13 |
Family
ID=31326732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9950888U Pending JPH0221302U (en) | 1988-07-27 | 1988-07-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221302U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232511B2 (en) * | 1980-07-21 | 1987-07-15 | Fuiritsupusu Furuuiranpenfuaburiken Nv |
-
1988
- 1988-07-27 JP JP9950888U patent/JPH0221302U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232511B2 (en) * | 1980-07-21 | 1987-07-15 | Fuiritsupusu Furuuiranpenfuaburiken Nv |
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