JPH0224102U - - Google Patents
Info
- Publication number
- JPH0224102U JPH0224102U JP10302388U JP10302388U JPH0224102U JP H0224102 U JPH0224102 U JP H0224102U JP 10302388 U JP10302388 U JP 10302388U JP 10302388 U JP10302388 U JP 10302388U JP H0224102 U JPH0224102 U JP H0224102U
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- flappers
- flapper
- magnifying lever
- piezoelectric
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000010287 polarization Effects 0.000 claims 1
Landscapes
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Description
第１〜３図は本考案を具体化した一実施例を示
し、第１図は電空変換器全体の縦断面図、第２図
はフラツパ駆動機構の斜視図、第３図は圧電積層
体の要部拡大断面図、第４図は本考案の別例の電
空変換器全体を示す縦断面図、第５図はフラツパ
駆動機構の斜視図である。
入力ポート１ａ、出力ポート１ｂ、主弁２、ダ
イヤフラム５，６、圧力センサ８、ノズル９、フ
ラツパ駆動機構１０、フラツパ１１，１４、固定
基部１０ａ、変位拡大レバー部１０ｂ、力点部１
０ｃ、作用点部１０ｄ、支点部１０ｅ、作用部１
１ａ，１４ａ、圧電積層体１２、圧電素子板１２
ａ、電極板１２ｂ、伸長変位量Δ、平行変位量δ
、パイロツト室Ｓ２。
Figures 1 to 3 show an embodiment embodying the present invention; Figure 1 is a longitudinal cross-sectional view of the entire electro-pneumatic converter, Figure 2 is a perspective view of the flapper drive mechanism, and Figure 3 is a piezoelectric laminate. FIG. 4 is a longitudinal sectional view showing the whole electro-pneumatic converter according to another example of the present invention, and FIG. 5 is a perspective view of the flapper drive mechanism. Input port 1a, output port 1b, main valve 2, diaphragm 5, 6, pressure sensor 8, nozzle 9, flapper drive mechanism 10, flapper 11, 14, fixed base 10a, displacement magnification lever part 10b, force point part 1
0c, action point part 10d, fulcrum part 10e, action part 1
1a, 14a, piezoelectric laminate 12, piezoelectric element plate 12
a, electrode plate 12b, elongation displacement amount Δ, parallel displacement amount δ
, pilot compartment S 2 .
Claims (1)
遮断を行なう主弁２に連接されたダイヤフラム組
立４に作用するパイロツト圧をノズルフラツパ機
構のフラツパ１１，１４の変位により制御し、出
力ポート１ｂ側の検出圧力に基づいてノズルフラ
ツパ１１，１４の変位を電気的に制御する電空変
換器において、固定基部１０ａと、固定基部１０
ａの両側に揺動可能に対称に支持された一対の変
位拡大レバー部１０ｂと、両変位拡大レバー部１
０ｂの力点部１０ｃ間に介在された圧電積層体１
２と、両変位拡大レバー部１０ｂの作用点部１０
ｄ間に架設された座屈ばねからなるフラツパ１１
，１４とによりフラツパ駆動機構を構成し、圧電
素子板１２ａと電極板１２ｂとを交互に積層した
圧電積層体１２に対して前記検出圧力に応じた電
圧を各圧電素子板１２ａの分極方向へ印加し、こ
れにより積層方向へ伸長変位する圧電積層体１２
の変位Δを両変位拡大レバー部１０ｂを介してフ
ラツパ１１，１４の変位δに拡大変換するように
したことを特徴とする電空変換器。 The pilot pressure acting on the diaphragm assembly 4 connected to the main valve 2 that cuts off communication between the input port 1a and the output port 1b is controlled by the displacement of the flappers 11 and 14 of the nozzle flapper mechanism, and the output port 1b side is detected. In an electro-pneumatic converter that electrically controls the displacement of nozzle flappers 11 and 14 based on pressure, a fixed base 10a;
A pair of displacement magnifying lever parts 10b swingably supported symmetrically on both sides of a, and both displacement magnifying lever parts 1
Piezoelectric laminate 1 interposed between force points 10c of 0b
2, and the action point portion 10 of both displacement magnifying lever portions 10b.
A flapper 11 consisting of a buckling spring installed between d
, 14 constitute a flapper drive mechanism, and a voltage corresponding to the detected pressure is applied to the piezoelectric laminate 12 in which piezoelectric element plates 12a and electrode plates 12b are alternately laminated in the polarization direction of each piezoelectric element plate 12a. As a result, the piezoelectric laminate 12 is elongated and displaced in the stacking direction.
An electro-pneumatic converter characterized in that the displacement Δ of is magnified and converted into the displacement δ of flappers 11 and 14 via both displacement magnifying lever parts 10b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10302388U JPH0453448Y2 (en) | 1988-08-03 | 1988-08-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10302388U JPH0453448Y2 (en) | 1988-08-03 | 1988-08-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0224102U true JPH0224102U (en) | 1990-02-16 |
| JPH0453448Y2 JPH0453448Y2 (en) | 1992-12-16 |
Family
ID=31333467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10302388U Expired JPH0453448Y2 (en) | 1988-08-03 | 1988-08-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453448Y2 (en) |
-
1988
- 1988-08-03 JP JP10302388U patent/JPH0453448Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0453448Y2 (en) | 1992-12-16 |
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