CN2360694Y - Proportional valve driving gear - Google Patents
Proportional valve driving gear Download PDFInfo
- Publication number
- CN2360694Y CN2360694Y CN 99201680 CN99201680U CN2360694Y CN 2360694 Y CN2360694 Y CN 2360694Y CN 99201680 CN99201680 CN 99201680 CN 99201680 U CN99201680 U CN 99201680U CN 2360694 Y CN2360694 Y CN 2360694Y
- Authority
- CN
- China
- Prior art keywords
- proportional valve
- triode
- power take
- power supply
- biasing resistor
- 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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- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to a proportional valve driving gear, comprising a power supply, an automatic control part and a driving part. The driving part is composed of two to eight power output devices integrated in a piece of printing plate; each power output device forms a set of common emitter circuit which is composed of a proportional valve coil K, a triode V, a fast recovery diode D and bias resistors R < 1 >, R < 2 >; the power output devices are connected by connectors, share a regulated power supply, and are controlled by an automatic control part. The utility model can select the number of the power output devices through a socket connector according to the need of different engineering, can reduce the volume of a control cabinet, and has the advantages of convenient installation and low cost.
Description
The utility model relates to a kind of Proportional valve drive unit.
The supporting Proportional valve driver of Proportional valve manufacturer all is Proportional valve of a driver drives at present, the automatic control that driver comprises stabilized power supply, be made of buffering loader, Dither generator, ramp generator partly, several parts such as driving part (referring to figure one) of constituting by power take off, the transformer of its stabilized power supply has partly almost accounted for volume and the most weight of half.In the control system than complexity such as large-scale component promotes synchronously, need to control simultaneously several Proportional valves, if traditional approach according to a Proportional valve of a driver drives, the volume of control cabinet will be very huge undoubtedly so, the also corresponding raising of cost brings certain difficulty for transportation and installment work.Simultaneously because parameter (as the magnification factor) discreteness of high power valve is very big in the power take off, so when different Proportional valve coils reached same output current, input voltage but had very big difference, giving automatically, control has increased difficulty.
The object of the present invention is to provide a kind of volume little, be convenient to install, not only be beneficial to automatic control, but also can be according to the Proportional valve drive unit of the needs flexible configuration power take off of different engineerings.
For reaching above-mentioned purpose, solution of the present utility model is: the power supply of a plurality of drivers is separated, and driving part (power take off) is concentrated on the circuit board simultaneously; Proportional valve drive unit of the present utility model still comprises power supply, control part automatically and driving part three parts, described driving part is made of a plurality of power take offs that are integrated on the bar printing plate, and each power take off is by Proportional valve coil K, triode V, fast recovery diode D, biasing resistor R
1, R
2Constitute one group of common emitter circuit, Proportional valve coil K and fast recovery diode D parallel connection, the collector electrode of one termination triode V, the other end and biasing resistor R
1One end connects power supply by ammeter PA after linking to each other, the debugging resistance R
*One terminates at the base stage of triode V, the other end and biasing resistor R
1, R
2, current-limiting resistance R
3Common junction link to each other biasing resistor R
2The other end link to each other and ground connection current-limiting resistance R with the emitter of triode
3The other end connect variable resistor RP
2The back joins with gang switch KB-2, connects by connector assembly between each power take off, and a shared stabilized power supply is subjected to one to control partly control, a shared Dither generator automatically and adjust circuit.
Because adopt said structure, the Proportional valve drive unit of the utility model has the following advantages:
1, each power take off parameter is approaching, and the input voltage adjustable extent is big, and the control electric current is consistent with the input voltage variation, is more conducive to automatic control.
General Proportional valve driver manufacturer often leaves very big surplus to satisfy the requirement of Proportional valve in order to have interchangeability between the driver that makes oneself and the Proportional valve between input voltage and the output current.Such as input voltage in the technical parameter is 0～5V, the output rated current is 1A, when in fact output current reaches 1A, input voltage has only 2～3V, some in addition littler, add and overcome the needed voltage of Proportional valve dead zone range, in fact the adjustable range of input voltage is very little, has increased the difficulty of automatic control.
Each power take off of the Proportional valve drive unit of the utility model is by Proportional valve coil K, triode V, fast recovery diode D, biasing resistor R
1, R
2Constitute one group of common emitter circuit, by suitable selection R
1And R
2Resistance can determine the quiescent operation point of triode V to make triode V be operated in the amplification region; RP
2And R
3Play metering function, by regulating RP
2Can change the electric current that is input to triode V, make input voltage and output current along with our control range is adjusted arbitrarily; R
*For debugging resistance, because the discreteness of transistor parameter is big, both made its magnification factor of pipe of same model that very big difference is also arranged, output current also reaches maximum value when making input voltage reach maximum value, according to the different R that suitably adjust of triode magnification factor
*Resistance can meet the demands, make the parameter between each driver more approaching simultaneously, help automatic control.
2, get final product a plurality of Proportional valves of controlling and driving with a drive unit, reduce the control cabinet volume, be convenient to install, reduce cost.
3, each power take off is independent separately, does not interfere with each other, and can select the power take off number with a plurality of Proportional valves of controlling and driving by connector assembly according to different requirement of engineering.
Below in conjunction with drawings and Examples technical characteristics of the present utility model is further described.
Fig. 1: Proportional valve actuator electrical theory diagram
Fig. 2; The utility model embodiment Proportional valve driver drives is circuit diagram partly
Embodiment:
A kind of Proportional valve driver.Comprise power supply, control part automatically and driving part; Automatically control partly comprises buffering loader, ramp generator, input value preregulator, Dither generator, U/I transducer, its control section is finished by computer, described driving part is made of 4 power take offs that are integrated on the bar printing plate, and first power take off is by Proportional valve coil K
1, triode V
1, fast recovery diode D
1, biasing resistor R
11, R
21Constitute one group of common emitter circuit, Proportional valve coil K
1With fast recovery diode D
1Parallel connection, one termination triode V
1Collector electrode, the other end and biasing resistor R
11One end connects power supply by ammeter PA after linking to each other, the debugging resistance R
* 1One terminates at triode V
1Base stage, the other end and biasing resistor R
11, R
21, current-limiting resistance R
31Common junction link to each other biasing resistor R
21The other end link to each other and ground connection current-limiting resistance R with the emitter of triode
31The other end connect variable resistor RP
21The back joins with gang switch KB-2.
Second power take off is by Proportional valve coil K
2, triode V
2, fast recovery diode D
2Biasing resistor R
12, R
22, constitute one group of common emitter circuit, debugging resistance is R
* 2, current-limiting resistance is R
32, RP
22Element is identical with first power take off with annexation between the element, and the like, the formation of the 3rd, the 4th power take off and annexation identical with first power take off (referring to Fig. 2) each other, connect by connector assembly between four power take offs, a shared stabilized power supply is subjected to partly control of control automatically, a shared flutter generator and an adjustment circuit thereof.Among the figure, F
1～F
4Be fus, RP
11～RP
14Be the manual tune potentiometer.
As a kind of conversion of present embodiment, the power take off of proportion of composing valve drive driving part can also be generally 2～8 for increasing as required, subtracting.
As a kind of conversion of present embodiment, the triode V in the described power take off also can adopt field effect transistor to replace.
Claims (2)
1, a kind of Proportional valve drive unit, comprise power supply, control part automatically and driving part, automatically control partly comprises the Dither generator and adjusts circuit, it is characterized in that: described driving part is made of 2～8 power take offs that are integrated on the bar printing plate, and each power take off is by Proportional valve coil K, triode V, fast recovery diode D, biasing resistor R
1, R
2Constitute one group of common emitter circuit, Proportional valve coil K and fast recovery diode D parallel connection, the collector electrode of one termination triode V, the other end and biasing resistor R
1One end connects power supply by ammeter PA after linking to each other, the debugging resistance R
*One terminates at the base stage of triode V, the other end and biasing resistor R
1, R
2, current-limiting resistance R
3Common junction link to each other biasing resistor R
2The other end link to each other and ground connection current-limiting resistance R with the emitter of triode
3The other end connect variable resistor RP
2The back joins with gang switch KB-2, connects by connector assembly between each power take off, and a shared stabilized power supply is subjected to one to control partly control, a shared Dither generator automatically and adjust circuit.
2, Proportional valve drive unit as claimed in claim 1 is characterized in that: the triode V in the described power take off also can adopt field effect transistor to replace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201680 CN2360694Y (en) | 1999-01-28 | 1999-01-28 | Proportional valve driving gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99201680 CN2360694Y (en) | 1999-01-28 | 1999-01-28 | Proportional valve driving gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2360694Y true CN2360694Y (en) | 2000-01-26 |
Family
ID=33997382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99201680 Expired - Fee Related CN2360694Y (en) | 1999-01-28 | 1999-01-28 | Proportional valve driving gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2360694Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641374A (en) * | 2016-11-17 | 2017-05-10 | 上海空间推进研究所 | Micro-flow piezoelectric ceramic proportional valve |
-
1999
- 1999-01-28 CN CN 99201680 patent/CN2360694Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641374A (en) * | 2016-11-17 | 2017-05-10 | 上海空间推进研究所 | Micro-flow piezoelectric ceramic proportional valve |
| CN106641374B (en) * | 2016-11-17 | 2019-01-25 | 上海空间推进研究所 | A kind of tiny flow quantity piezoelectric ceramics proportioning 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 |