CN204154468U - Be applied to the throttle valve position control module in wind tunnel test - Google Patents
Be applied to the throttle valve position control module in wind tunnel test Download PDFInfo
- Publication number
- CN204154468U CN204154468U CN201420621919.8U CN201420621919U CN204154468U CN 204154468 U CN204154468 U CN 204154468U CN 201420621919 U CN201420621919 U CN 201420621919U CN 204154468 U CN204154468 U CN 204154468U
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- CN
- China
- Prior art keywords
- contactor
- driver
- servo
- induction motor
- electric signal
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- 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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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
A kind of throttle valve position control module be applied in wind tunnel test, comprise DP bus card, servo-driver, scrambler card, position coder, AC induction motor, speed reduction unit, multistage connecting rod, first contactor and the second contactor, AC induction motor is provided with detent, the output shaft of AC induction motor is connected with speed reduction unit, speed reduction unit is connected with multistage connecting rod, multistage connecting rod is connected with throttling valve, DP bus card is connected with servo-driver electric signal, servo-driver is connected with AC induction motor electric signal, AC induction motor is provided with position coder, position coder is connected with scrambler card electric signal, scrambler card is connected with servo-driver electric signal, servo-driver is connected with 380V AC power by the first contactor, first contactor is connected with the second contactor, second contactor is connected with the detent of AC induction motor.This control module improves the accuracy of control system, reduces maintenance cost.
Description
Technical field
The utility model relates to a kind of throttle valve position control module be applied in wind tunnel test.
Background technology
Throttling valve in wind-tunnel is that one controls gas flow by changing throttling cross section, and then changes the characteristics such as tunnel airstream quality.Traditional control mode is comparatively simple, generally manually control, or use common alternating current generator to control the aperture of throttling valve, although stepless control can be carried out to the angle position of throttling valve, control mode is also comparatively simple, but degree of regulation is not high, and angle position can not Real-time Obtaining, and pressure reduction is larger before and after restriction, the uncontrollable situation of throttle valve position can be there is owing to there is no fast braking function.Therefore, the throttle valve control system based on traditional approach cannot meet the high-quality airflow requirement of wind-tunnel, is only applicable to the little and wind-tunnel that wind speed stability is not high of blast change.
Utility model content
Based on the weak point of the throttle angle position control system of above-mentioned control mode, the purpose of this utility model be for wind-tunnel flow regulating valve system provide a kind of more accurate, reliable and control mode, this kind of mode can overcome the existing unfavorable factor of traditional approach.
The utility model technology just as follows: a kind of throttle valve position control module be applied in wind tunnel test, comprise DP bus card, servo-driver, scrambler card, position coder, AC induction motor, speed reduction unit, multistage connecting rod, first contactor and the second contactor, AC induction motor is provided with detent, the output shaft of AC induction motor is connected with speed reduction unit, speed reduction unit is connected with multistage connecting rod, multistage connecting rod is connected with throttling valve, DP bus card is connected with servo-driver electric signal, servo-driver is connected with AC induction motor electric signal, AC induction motor is provided with position coder, position coder is connected with scrambler card electric signal, scrambler card is connected with servo-driver electric signal, servo-driver is connected with 380V AC power by the first contactor, first contactor is connected with the second contactor, second contactor is connected with the detent of AC induction motor.
The utility model also has following technical characteristic: AC induction motor is provided with temperature sensor; temperature sensor is held with " TF/TH inputs " of servo-driver and is connected; braking resistor is connected with hot relay protector, and the normal-closed end of hot relay protector is connected with the control Enable Pin of the first contactor, servo-driver respectively.
The utility model is equivalent to traditional control mode, greatly increases the accuracy of control system, reduces maintenance cost.
Accompanying drawing explanation
Fig. 1 is the throttle valve position control module schematic diagram be applied in wind tunnel test; Wherein 1, DP bus card, 2, servo-driver, 3, scrambler card, 4, position coder, 5, AC induction motor, 6, speed reduction unit, 7, throttling valve.
Fig. 2 is servo-driver and AC induction motor connection layout;
Fig. 3 is upper and lower electric control circuit figure;
Fig. 4 is servo-driver part terminal schematic diagram;
Embodiment
Below in conjunction with Figure of description citing, the utility model is described in further detail:
Embodiment 1
A kind of throttle valve position control module be applied in wind tunnel test, comprise DP bus card, servo-driver, scrambler card, position coder, AC induction motor, speed reduction unit, multistage connecting rod, first contactor and the second contactor, AC induction motor is provided with detent, the output shaft of AC induction motor is connected with speed reduction unit, speed reduction unit is connected with multistage connecting rod, multistage connecting rod is connected with throttling valve, DP bus card is connected with servo-driver electric signal, servo-driver is connected with AC induction motor electric signal, AC induction motor is provided with position coder, position coder is connected with scrambler card electric signal, scrambler card is connected with servo-driver electric signal, servo-driver is connected with 380V AC power by the first contactor, first contactor is connected with the second contactor, second contactor is connected with the detent of AC induction motor.In the utility model, throttling valve is as the controlled device in automatic control system, by corresponding multistage connecting rod and speed reduction unit as mechanical driving member, the ac three-phase asynchronous motor be coaxially connected with speed reduction unit is as topworks, and the absolute position encoder being equipped with 12 precision is as feedback element, servo-driver, as power drive parts, can complete the effects such as instruction transformation, I/O control, frequency conversion.
This motor carries temperature sensor; fast and safely stop in the non-normal working situations such as overcurrent to enable control device; hot relay protector is sealed at the braking resistor incoming end of driver; and the normal-closed end of hot relay protector is divided into two paths of signals; be given to main contactor respectively and control Enable Pin; like this when there is overcurrent, major loop and driver can be protected rapidly.
Driver output AC electric signal, to three phase electric machine, through speed reduction unit, and then controls the angle of throttling valve, after motor executes travel commands, perform fast braking flow process, simultaneously, motor position just locks by detent, and prevent under the impacts such as blast, throttle valve position departs from.
In Fig. 2, L1, L2, L3 are the access of 380V AC power, and PE is protecting field; QF1 is isolating switch, the first contactor KM1, the second contactor KM2, gives servo-driver and detent power-on and power-off respectively; Servo-driver model is MDX61B; AC induction motor and detent BGE are in figure motor cover.
In Fig. 3, N and L is respectively zero line and the live wire of 220V AC power, power on buttons SB1 and lower eletric button SB2, upper and lower electric pilot lamp LD1, LD2;
In Fig. 4, RT is the temperature temperature element that motor internal carries, and holds be connected with " TF/TH inputs " of driver;
After access power supply, close circuit breaker QF1, presses power on buttons SB1, and now the first contactor KM1 adhesive, completes and power on.
When stopping when being in an emergency or brake, the control terminal " braking exports " of servo-driver can export braking high level signal, make the second auxiliary reclay KA2 coil charged, and then make the coil of the second contactor KM2 also charged, the main contacts adhesive of such second contactor KM2, detent BGE is energized work, motor braking.
Unnecessary braking energy can the form with heat energy from braking resistor BW347 discharge; when the heat in braking resistor is excessive; electrothermal relay FR meeting trigger action; and then make the coil also power down of the first auxiliary reclay KA1 in Fig. 3; cause the enable terminal power down in Fig. 4; or else such driver can produce output signal, protection system safe operation.
Claims (2)
1. one kind is applied to the throttle valve position control module in wind tunnel test, comprise DP bus card, servo-driver, scrambler card, position coder, AC induction motor, speed reduction unit, multistage connecting rod, first contactor and the second contactor, AC induction motor is provided with detent, the output shaft of AC induction motor is connected with speed reduction unit, it is characterized in that: speed reduction unit is connected with multistage connecting rod, multistage connecting rod is connected with throttling valve, DP bus card is connected with servo-driver electric signal, servo-driver is connected with AC induction motor electric signal, AC induction motor is provided with position coder, position coder is connected with scrambler card electric signal, scrambler card is connected with servo-driver electric signal, servo-driver is connected with 380V AC power by the first contactor, first contactor is connected with the second contactor, second contactor is connected with the detent of AC induction motor.
2. a kind of throttle valve position control module be applied in wind tunnel test according to claim 1; it is characterized in that: AC induction motor is provided with temperature sensor; temperature sensor is held with " TF/TH inputs " of servo-driver and is connected; braking resistor is connected with hot relay protector, and the normal-closed end of hot relay protector is connected with the control Enable Pin of the first contactor, servo-driver respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420621919.8U CN204154468U (en) | 2014-10-14 | 2014-10-14 | Be applied to the throttle valve position control module in wind tunnel test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420621919.8U CN204154468U (en) | 2014-10-14 | 2014-10-14 | Be applied to the throttle valve position control module in wind tunnel test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154468U true CN204154468U (en) | 2015-02-11 |
Family
ID=52512573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420621919.8U Expired - Fee Related CN204154468U (en) | 2014-10-14 | 2014-10-14 | Be applied to the throttle valve position control module in wind tunnel test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671373A (en) * | 2015-11-05 | 2017-05-17 | 宁夏琪凯节能设备有限公司 | Energy-saving asynchronous servo equipment |
| CN110133317A (en) * | 2019-04-30 | 2019-08-16 | 扬力集团股份有限公司 | A kind of sliding block adjusted torque detection method |
-
2014
- 2014-10-14 CN CN201420621919.8U patent/CN204154468U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671373A (en) * | 2015-11-05 | 2017-05-17 | 宁夏琪凯节能设备有限公司 | Energy-saving asynchronous servo equipment |
| CN110133317A (en) * | 2019-04-30 | 2019-08-16 | 扬力集团股份有限公司 | A kind of sliding block adjusted torque detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20161014 |