CN2343610Y - Electronic electric actuator for straight range regulating valve - Google Patents
Electronic electric actuator for straight range regulating valve Download PDFInfo
- Publication number
- CN2343610Y CN2343610Y CN 98237635 CN98237635U CN2343610Y CN 2343610 Y CN2343610 Y CN 2343610Y CN 98237635 CN98237635 CN 98237635 CN 98237635 U CN98237635 U CN 98237635U CN 2343610 Y CN2343610 Y CN 2343610Y
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- CN
- China
- Prior art keywords
- utility
- nut
- model
- circuit
- regulating valve
- 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 - Fee Related
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to an electronic electric actuator for a straight range regulating valve, which is mainly composed of an electronic controller and an electric actuating mechanism. The utility model is characterized in that the utility model improves the electric actuating mechanism, an AC reversible motor is in gear transmission with a nut, and the nut drives a threaded rod to make rectilinear movement to control the opening of a regulating valve and a moving contact of an adjustable potentiometer. The utility model has the advantages of small volume, light weight and convenient maintenance, and the utility model has high accuracy in regulating the opening of the regulating valve.
Description
The utility model is a kind of electronic formula electric actuator that is used for pipe system A.T.C, pressure, the isoparametric Direct Travel variable valve of flow.
The electronic formula electric actuator of existing Direct Travel variable valve mainly comprises the motor belt gear of control adjustable potentiometer moving contact and control valve opening size and controls the electronic controller that motor is forward and reverse or shut down according to preset signal input circuit and control valve opening feedback signal.Because its gear train is a belt gear, therefore easily generation is slided and is lost revolution, influences the accuracy of valve opening.
The purpose of this utility model provides a kind of electronic formula electric actuator that improves the Direct Travel variable valve of control valve opening accuracy.
The purpose of this utility model be achieved in that it comprise exchange reversible motor and by adjustable potentiometer, preset the electronic controller that input signal circuit, control valve opening feedback signal input circuit, comparator circuit, amplifying circuit and forward and reverse control circuit constitute, it is characterized in that: the reversible motor output shaft with gear be meshed with the gear that a nut is connected outward, the bottom of nut places in the bearing sleeve that is fixed on the base plate, places the screw rod top and bottom of nut to link to each other with the moving contact of adjustable potentiometer and the output shaft of regulating and controlling valve respectively.By the current aperture signal of valve that comes by adjustable potentiometer feedback with preset input signal (prior given temperature, pressure or flow parameter) and compare after, the output difference signal, motor is rotated to eliminating the difference signal direction, and when difference signal was " zero ", motor stopped operating.
The utility model has the advantages that: utilize gear drive to substitute original belt gear, solved the problem of losing revolution, thereby improved the accuracy of valve opening greatly, volume can reduce relatively simultaneously, and weight also can alleviate relatively.
Below in conjunction with accompanying drawing the utility model is explained.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model circuit theory diagrams.
By accompanying drawing as can be known, the utility model mainly comprises by presetting the input signal circuit, the feedback signal input circuit, comparator circuit, amplifying circuit, the electronic controller (electronic component in this controller places on the bar printing wiring board 16) that the motor positive and reverse rotation control circuit constitutes and by motor 3, gear 5,4, nut 2, control adjustable potentiometer 17 moving contacts that screw rod 1 constitutes and the gear drive of regulating and controlling valve output shaft 15, the circuit structure of electronic controller and former bel-drivenn electric actuator basic identical (providing) by Fig. 2, so be not described in detail, only give simple declaration from circuit theory.Preset two input ends that input signal I1 and valve opening feedback signal I2 send into the comparator circuit that is made of operational amplifier IN4148-2, after relatively, export difference signal, difference signal is during greater than " zero ", export to amplifying circuit IN4148-4, difference signal is during less than " zero ", export to another amplifying circuit IN4148-3, two amplifying circuits are controlled respectively by relay J 1, J2 and SCR AC switch 2-MC3081, the forward and reverse control circuit of motor that 2-BIA etc. constitute, make and exchange reversible motor 3 to eliminating the rotation of difference direction, when difference signal equals " zero ", be that the valve opening feedback signal is when equaling to preset input signal, the output of comparator circuit IN4148-2 no signal, motor 3 stops operating, and this moment, manufacturing technique requirent was just in time satisfied in the valve opening position.Gear 5 on motor 3 output shafts is meshed with gear 4 on the nut 2, screw rod 1 top and bottom in the nut link to each other with the moving contact of adjustable potentiometer 17 and the output shaft 15 of regulating and controlling valve respectively, and the bottom of nut 2 places in the bearing block set that is made of bearing 8, back-up ring 7, overcoat 6.Motor 3 drives nut 2 rotations by gear 5,4, and by nut 2 drive screw rods 1 moving linearly, screw rod is when moving linearly, driving adjustable potentiometer 17 moving contacts slides, give electronic controller by the valve opening signal feedback that adjustable potentiometer takes out, screw rod also drives the output shaft action when driving the moving contact slip, adjust the aperture of variable valve with this.Sequence number 18 among Fig. 1 is a housing.
Claims (1)
1, a kind of electronic formula electric actuator of Direct Travel variable valve, it comprises and exchanges reversible motor and by adjustable potentiometer, preset the input signal circuit, control valve opening feedback signal input circuit, comparator circuit, the electronic controller that amplifying circuit and forward and reverse control circuit constitute, it is characterized in that: the reversible motor output shaft with gear be meshed with the gear that a nut is connected outward, the bottom of nut places in the bearing sleeve that is fixed on the base plate, places the screw rod top and bottom of nut to link to each other with the moving contact of adjustable potentiometer and the output shaft of regulating and controlling valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98237635 CN2343610Y (en) | 1998-05-15 | 1998-05-15 | Electronic electric actuator for straight range regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98237635 CN2343610Y (en) | 1998-05-15 | 1998-05-15 | Electronic electric actuator for straight range regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2343610Y true CN2343610Y (en) | 1999-10-13 |
Family
ID=33985411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98237635 Expired - Fee Related CN2343610Y (en) | 1998-05-15 | 1998-05-15 | Electronic electric actuator for straight range regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2343610Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907193A (en) * | 2010-07-09 | 2010-12-08 | 鞍山市大孤山阀门厂 | Electric linear-motion electronic wear-resistant lining rubber adjusting valve |
| CN101951061A (en) * | 2010-09-14 | 2011-01-19 | 南京科远自动化集团股份有限公司 | Novel intelligent straight travel electric executing mechanism |
| CN105003714A (en) * | 2015-07-01 | 2015-10-28 | 珠海艾迪西软件科技有限公司 | Independent electronic final controlling element for linear stroke valve |
-
1998
- 1998-05-15 CN CN 98237635 patent/CN2343610Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907193A (en) * | 2010-07-09 | 2010-12-08 | 鞍山市大孤山阀门厂 | Electric linear-motion electronic wear-resistant lining rubber adjusting valve |
| CN101951061A (en) * | 2010-09-14 | 2011-01-19 | 南京科远自动化集团股份有限公司 | Novel intelligent straight travel electric executing mechanism |
| CN105003714A (en) * | 2015-07-01 | 2015-10-28 | 珠海艾迪西软件科技有限公司 | Independent electronic final controlling element for linear stroke valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |