JPS6232511U

JPS6232511U -

Info

Publication number: JPS6232511U
Application number: JP12382185U
Authority: JP
Priority date: 1985-08-12
Filing date: 1985-08-12
Publication date: 1987-02-26

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案に係る防爆型電気
／変位変換機構の一実施例を示し、第１図は電空
ポジシヨナに適用した場合の縦断面図、第２図は
第１図Ａ矢視平面図、第３図はステム支持用ばね
の平面図、第４図は電空ポジシヨナ全体の概要構
成図である。１……第１ヨーク、１ａ……取付座、２……永
久磁石、３……第２ヨーク、４……ステム用孔、
５Ａ，５Ｂ……板ばね、７……励磁コイル、１０
……出力ステム、１１……端子箱、１１ｂ……外
壁、４０……スリーブ。 1 to 4 show an embodiment of the explosion-proof electric/displacement conversion mechanism according to the present invention, FIG. 1 is a vertical cross-sectional view when applied to an electro-pneumatic positioner, and FIG. FIG. 3 is a plan view of the stem support spring, and FIG. 4 is a schematic diagram of the entire electropneumatic positioner. 1...First yoke, 1a...Mounting seat, 2...Permanent magnet, 3...Second yoke, 4...Stem hole,
5A, 5B...Plate spring, 7...Excitation coil, 10
...Output stem, 11...Terminal box, 11b...Outer wall, 40...Sleeve.

Claims

[Scope of utility model registration request]

A second yoke is disposed at the bottom of the first yoke via a permanent magnet, and an excitation coil elastically supported by a spring member is disposed in a magnetic path formed between these two yokes. , a sleeve forming an explosion-proof plow is disposed in the stem hole formed at the center of the first yoke, the permanent magnet, and the second yoke, and the output stem is displaced by excitation of the excitation coil. An explosion-proof electric/displacement conversion mechanism characterized by being inserted into the center hole of the sleeve so as to be movable in the axial direction, leaving an explosion-proof gap specified by the explosion-proof guideline.