CN101093032A - Automatic action electric actuator based on different running resistance - Google Patents
Automatic action electric actuator based on different running resistance Download PDFInfo
- Publication number
- CN101093032A CN101093032A CN 200610085514 CN200610085514A CN101093032A CN 101093032 A CN101093032 A CN 101093032A CN 200610085514 CN200610085514 CN 200610085514 CN 200610085514 A CN200610085514 A CN 200610085514A CN 101093032 A CN101093032 A CN 101093032A
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- China
- Prior art keywords
- motor
- intelligent controller
- output shaft
- electric actuator
- spool
- 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
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
This invention relates to an electric executer including a shell, a motor, a speed-reduction unit, an output shaft and an intelligent controller, in which the motor is controlled by a drive module in the intelligent controller and is connected with the input of the speed reduction unit, the output of which is connected with the output shaft, the device also includes a voltage-sensitive sensor, which collects resistant values accepted by the valve core and converts them to electric signals and sends them to a CPU of the intelligent controller, which transmits electric signal of increasing or reducing open/close time of the adjusting valve to the drive module in the controller to control the motor to increase or reduce operation time so as to secure the requirement to accuracy of the valve core to accurate location.
Description
Technical field:
The present invention relates to electric actuator, especially for the electric actuator of intelligent control fluid flow.
Background technique:
The electric actuator of intelligent control contains housing, motor, turbine and worm decelerator, output shaft and intelligent controller, motor is controlled by intelligent controller, motor is connected with the turbine and worm decelerator input end, the output terminal of turbine and worm decelerator is connected with output shaft, motor drives output shaft and rotates for low inertia, electric motor with large torque, low inertia, electric motor with large torque drive turbine and worm decelerator, thereby the output torque realizes electric actuator execution action.In turbine and worm decelerator, have and can be implemented in the switching mechanism that carries out switch motion between handwheel control operation and the electronic control operation, the switch motion that is implemented between handwheel control operation and the electronic control operation is finished by switching handle, when the switching handle is in the handwheel position, the operation handwheel drives output shaft by clutch and rotates; When the switching handle is in the electric operating position, being implemented in the switching mechanism that carries out switch motion between handwheel control operation and the electronic control operation will fall after rise automatically to motoring condition, clutch and worm gear are meshed, at this moment drive turbine and worm decelerator by low inertia, electric motor with large torque, the drive output shaft rotates, thereby the output torque realizes electric actuator execution action.Low inertia, the control of electric motor with large torque is to be finished by the driver module in the intelligent controller, the performer that electric actuator is controlled is generally modulating valve, the signal that the working position at modulating valve place changes is transferred in the interior load module of intelligent controller after treatment, intelligent controller is with standard analog current controling signal or switching value signal or communication protocol signal, compare with the working position signal of the modulating valve that receives, adjust the position of the output shaft of electric actuator simultaneously, thereby with the output shaft of electric actuator be positioned with the corresponding position of input signal on, finish positioning control.Because modulating valve in the course of the work, be to promote spool by valve rod to finish the pinpoint of spool, in whole adjustment process, spool suffered resistance in movement process changes, and it is constantly different at same position, the suffered resistance of spool is also non-constant, because, the flow of the flowing medium in the modulating valve can change at any time, and the pressure reduction before and after the modulating valve also can change at any time, when suffered resistance ratios in the process that spool is moving is bigger, operation inertia is little, when suffered resistance ratios was less, operation inertia was big, and this has brought certain degree of difficulty just for the accurate location of spool.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, providing a kind of can regulate actuation time automatically, make the pinpoint electric actuator of spool according to the suffered running resistance difference of the spool of modulating valve.
Solution of the present invention is: contain housing, motor, reducing gear, output shaft and intelligent controller, motor is controlled by the driver module in the intelligent controller, motor is connected with the reducing gear input end, the output terminal of reducing gear is connected with output shaft, also contain voltage sensitive sensor, voltage sensitive sensor collects the changing value of the suffered resistance of spool, and converting the central processing unit that electrical signal is given intelligent controller to, the electrical signal that the time was opened/closed to central processing unit with the regulating and controlling valve is given in the driver module in the intelligent controller.
Adopt the present invention, as spool suffered little time marquis of resistance in movement process, voltage sensitive sensor collects the suffered Resistance Value of spool, and convert the central processing unit that electrical signal is given intelligent controller to, central processing unit will reduce modulating valve to be opened/closes the electrical signal of time and give driver module in the intelligent controller, and driver module control motor reduces working time; As spool suffered big time marquis of resistance in movement process, voltage sensitive sensor collects the suffered Resistance Value of spool, and convert electrical signal to and give central processing unit, central processing unit will prolong modulating valve and open/close the electrical signal of time and give driver module in the intelligent controller, driver module control motor prolongs working time, thereby guaranteed modulating valve no matter the size of suffered running resistance can both satisfy the pinpoint required precision of spool.
Embodiment:
Contain housing, motor, reducing gear, output shaft and intelligent controller, motor is controlled by intelligent controller, motor is connected with the reducing gear input end, the output terminal of reducing gear is connected with output shaft, also contain voltage sensitive sensor, adopt the C8051F005 processor, the electrical signal and the electrical signal of spool physical location of the theoretical position of spool are sent in the comparator in the C8051F005 processor compared, send into central processing unit in the C8051F005 processor through the result parameter of comparison; Voltage sensitive sensor collects the changing value of the suffered resistance of spool, and convert electrical signal to and give central processing unit in the C8051F005 processor, central processing unit in the C8051F005 processor is handled two electrical signal sending into, draw motor actual motion needed time, the electrical signal that will increase or reduce modulating valve and open/close the time by central processing unit is given the driver module in the intelligent controller, driver module control motor increases or reduces working time, thereby guaranteed modulating valve no matter the size of suffered running resistance can both satisfy the pinpoint required precision of spool.
Claims (1)
1, electric actuator, contain housing, motor, reducing gear, output shaft and intelligent controller, motor is controlled by the driver module in the intelligent controller, motor is connected with the reducing gear input end, the output terminal of reducing gear is connected with output shaft, it is characterized in that also containing voltage sensitive sensor, voltage sensitive sensor collects the changing value of the suffered resistance of spool, and converting the central processing unit that electrical signal is given intelligent controller to, the electrical signal that the time was opened/closed to central processing unit with the regulating and controlling valve is given in the driver module in the intelligent controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610085514 CN101093032A (en) | 2006-06-20 | 2006-06-20 | Automatic action electric actuator based on different running resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610085514 CN101093032A (en) | 2006-06-20 | 2006-06-20 | Automatic action electric actuator based on different running resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101093032A true CN101093032A (en) | 2007-12-26 |
Family
ID=38991421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610085514 Pending CN101093032A (en) | 2006-06-20 | 2006-06-20 | Automatic action electric actuator based on different running resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101093032A (en) |
-
2006
- 2006-06-20 CN CN 200610085514 patent/CN101093032A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |