CN108895047A - Intelligent gas-liquid executing agency - Google Patents
Intelligent gas-liquid executing agency Download PDFInfo
- Publication number
- CN108895047A CN108895047A CN201811088935.4A CN201811088935A CN108895047A CN 108895047 A CN108895047 A CN 108895047A CN 201811088935 A CN201811088935 A CN 201811088935A CN 108895047 A CN108895047 A CN 108895047A
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- China
- Prior art keywords
- hydraulic pump
- valve
- feedback device
- hydraulic cylinder
- stroke
- 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.)
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- 239000007788 liquid Substances 0.000 title claims abstract description 25
- 239000002828 fuel tank Substances 0.000 claims abstract description 13
- 238000003745 diagnosis Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 15
- 239000010720 hydraulic oil Substances 0.000 description 11
- 230000008859 change Effects 0.000 description 5
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention belongs to intelligent control device fields, and in particular to a kind of Intelligent gas-liquid executing agency, including gas source, stroke feedback device, pneumatic controller, air motor, hydraulic pump, solenoid directional control valve and valve block；Gas source and stroke feedback device air circuit connection, stroke feedback device and pneumatic controller air circuit connection, pneumatic controller and air motor air circuit connection, hydraulic pump is driven by air motor, hydraulic pump one end is connected with fuel tank, the other end of hydraulic pump is connected with the oil inlet of check valve, the oil outlet of check valve is connected with the oil inlet of solenoid directional control valve, the actuator port of solenoid directional control valve is connected with spring reset hydraulic cylinder, and the piston rod of spring reset hydraulic cylinder is connected with the valve block that control valve opens and closes；The piston rod of spring reset hydraulic cylinder connect the real-time stroke that hydraulic cylinder is resetted for feedback spring with stroke feedback device signal.
Description
Technical field
The invention belongs to intelligent control device fields, and in particular to a kind of Intelligent gas-liquid executing agency.
Background technique
Executing agency is the key building block of regulating valve.Executing agency is as driving part, according to control signal driving
The medium for flowing through valve is adjusted in control valve, it largely affects the working performance of regulating valve.
Executing agency is broadly divided into pneumatic actuator, electric operator, hydraulic actuating mechanism by energy form.Pneumatically
Executing agency has many advantages, such as that structure is simple, the pollution of easy to maintenance, cheap and environment resistant, but gas working dielectric has
Stronger compressibility keeps the yaw stiffness of pneumatic actuator poor, to the precise and stable sky of valve location and speed
Value brings very big influence.Electric operator controls precision height, is convenient for remote signal and transmits, but fire-proof and explosion-proof difference
It is some, reduce safety.Hydraulic actuating mechanism, using hardly with the highly pressurised liquid of compression as transmitting power medium, energy
Big power or torque are enough exported, is run smoothly, is driven gapless, yaw stiffness is good, but involves great expense, bulky stupid
Weight.
Pneumatic hydraulic actuator is combined both air-liquids advantage by the conversion of air-liquid transmission mode.High pressure gas
Body, which enters gas-liquid tank by control system, to be converted, and isobaric hydraulic oil is pressed into corresponding hydraulic piston cylinder in tank body, and piston is dynamic
Make that pneumatic hydraulic actuator driving valve is driven to realize smoothly on or off.
But existing pneumatic hydraulic actuator, failure can not be carried out to the running position of valve and pressure information
Analysis processing, moreover, the structure of driving device is divided into fork type and orbiting vane, both designs are only capable of turning straight-line displacement
It changes angular displacement into, therefore straight stroke valve cannot be driven.
Summary of the invention
Place, the present invention provide a kind of Intelligent gas-liquid executing agency in order to overcome the above-mentioned deficiencies of the prior art.
The present invention is achieved through the following technical solutions：A kind of Intelligent gas-liquid executing agency, including gas source, travel feedback
Device, pneumatic controller, air motor, hydraulic pump, solenoid directional control valve and valve block；Gas source and stroke feedback device air circuit connection,
Stroke feedback device and pneumatic controller air circuit connection, pneumatic controller and air motor air circuit connection, hydraulic pump is by pneumatic horse
Up to driving, hydraulic pump one end is connected with fuel tank, and the other end of hydraulic pump is connected with the oil inlet of check valve, check valve it is fuel-displaced
Mouth is connected with the oil inlet of solenoid directional control valve, and the actuator port of solenoid directional control valve is connected with spring reset hydraulic cylinder, spring
The piston rod for resetting hydraulic cylinder is connected with the valve block that control valve opens and closes；The piston rod and travel feedback of spring reset hydraulic cylinder
The connection of device signal resets the real-time stroke of hydraulic cylinder for feedback spring.
Further, the overflow valve connecting with fuel tank is equipped between the hydraulic pump and the check valve.
Further, the spring reset hydraulic cylinder（10）It is the piston cylinder or plunger that can export straight-line displacement and speed
Cylinder.
Further, oil absorption filter is additionally provided between the hydraulic pump and fuel tank.
Further, it is equipped with pressure sensor in the oil pocket of the spring reset hydraulic cylinder, pressure sensor and described
Stroke feedback device connect with fault diagnosis system signal, fault diagnosis system energy pressure sensor output and travel feedback
The information that device is fed back.
Further, the hydraulic pump is single-plunger hydraulic pump.
Further, the single-plunger hydraulic pump is equipped with the man-operated mechanism that can control cam rotation.
The beneficial effects of the invention are as follows：This gas-liquid actuator uses spring reset hydraulic cylinder, and cylinder body is piston cylinder or column
The hydraulic energy of hydraulic oil can be converted into the straight-line displacement of piston, realize the opening and closing of valve by plug cylinder；It gas-liquid linked is held with existing
Row mechanism compares, and can be used cooperatively with straight stroke valve, realizes the adjusting of straight stroke valve.This gas-liquid actuator is equipped with stroke
Feedback device, pressure sensor and fault diagnosis system, fault diagnosis system can be analyzed in real time under processing control valve operating status
Position signal and pressure signal, carry out simple fault diagnosis.
Detailed description of the invention
Fig. 1 is hydraulic mechanism schematic diagram of the invention；
In figure, 1, gas source, 2, stroke feedback device, 3, pneumatic controller, 4, air motor, 5, oil absorption filter, 6, hydraulic pump,
7, check valve, 8, overflow valve, 9, solenoid directional control valve, 10, spring reset hydraulic cylinder, 11, pressure sensor, 12, valve block, 13, hand
Motivation structure, 14, fault diagnosis system.
Specific embodiment
Below according to drawings and examples, the present invention is further described.
As shown in Figure 1, a kind of Intelligent gas-liquid executing agency, including gas source 1, stroke feedback device 2, pneumatic controller 3, gas
Dynamic motor 4, hydraulic pump 6, solenoid directional control valve 9 and valve block 12；Gas source 1 and 2 air circuit connection of stroke feedback device, stroke feedback device
2 are driven with 3 air circuit connection of pneumatic controller, pneumatic controller 3 and 4 air circuit connection of air motor, hydraulic pump 6 by air motor 4,
6 one end of hydraulic pump is connected with fuel tank, and the other end of hydraulic pump 6 is connected with the oil inlet of check valve 7, the oil outlet of check valve 7
It is connected with the oil inlet of solenoid directional control valve 9, the actuator port of solenoid directional control valve 9 is connected with spring reset hydraulic cylinder 10, bullet
The piston rod that spring resets hydraulic cylinder 10 is connected with the valve block 12 that control valve opens and closes；The piston rod of spring reset hydraulic cylinder 10 with
The connection of 2 signal of stroke feedback device resets the real-time stroke of hydraulic cylinder 10 for feedback spring.The gas conversion that gas source 1 is released
At the standard gas source for being suitable for air motor 4, clean enough, drying are provided to air pressure motor 4 and there is certain pressure and flow
Gas.Stroke feedback device 2, including feedback component I, roller bearing, feedback component II, gear I, gear II, potentiometer, potentiometer
Axis, air source inlet, solenoid valve, source outlet, electric signal input adapter, electric signal out splice going splice.Valve process is closed, telecommunications is given
Number, when the valve location that stroke feedback device 2 receives valve location corresponding with given electric signal is identical, travel feedback dress
Set 2 power-off.The pressure change of hydraulic oil in spring reset hydraulic cylinder 10, makes piston in hydraulic cylinder and piston rod movement, and then push away
The dynamic putter action for being connected with valve block 12, for the feedback component I being fixed on push rod as push rod is displaced, feedback component I passes through rolling
Axis drives feedback component II to rotate, and the shaft being fixed together with feedback component II will rotate with it, while drive and shaft
Fixed gear I rotates synchronously, and gear I drives to be rotated with I meshed gears II of gear, and gear II just will drive potentiometric axis
Rotation, the change in location that potentiometer will test are transformed into electric signal feedback to stroke feedback device 2, when change in location is corresponding
When electric signal is identical as given electric signal, the electric signal that stroke feedback device 2 exports is 0, and stroke feedback device 2 automatically powers off,
And then the also power loss of solenoid directional control valve 9.Stroke feedback device 2 is provided with solenoid valve, when 2 power loss of stroke feedback device, solenoid valve
It closes, gas source 1 is prevented to connect.The feedback principle of valve opening process is same as above.
Further, the spring reset hydraulic cylinder 10 is the piston cylinder or plunger that can export straight-line displacement and speed
The hydraulic energy of hydraulic oil can be converted into the straight-line displacement of piston, realize the opening and closing of valve by cylinder.
As the improvement of the present embodiment, overflow between the hydraulic pump 6 and the check valve 7 equipped with what is connect with fuel tank
Flow valve 8.The spring of overflow valve 8 is equipped with precompression, and when hydraulic pump 6 exports extra oil liquid, overflow valve 8 can adjust hydraulic pump
The oil liquid pressure of 6 delivery outlets.
Further, oil absorption filter 5 is additionally provided between the hydraulic pump 6 and fuel tank.Oil absorption filter 5 is mounted on liquid
At 6 inlet port of press pump, to protect hydraulic pump 6 and other Hydraulic Elements, impurity is polluted to avoid sucking, is efficiently controlled hydraulic
Systemic contamination adjusts the cleannes of hydraulic system.
As the improvement of the present embodiment, pressure sensor 11, pressure are equipped in the oil pocket of the spring reset hydraulic cylinder 10
11 energy detection spring of force snesor resets the pressure information of the oil pocket inner fluid of hydraulic cylinder 10, pressure sensor 11 and fault diagnosis
System is connected, and the pressure signal in spring reset hydraulic cylinder 10 can be transferred to fault diagnosis system 14.The stroke is anti-
Feedback device 2 is also connect with 14 signal of fault diagnosis system；Fault diagnosis system 14 can pressure sensor output 11 and travel feedback
The information that device 2 is fed back.Stroke feedback device 2 and pressure sensor 11 are transmitted to the change in displacement letter of fault diagnosis system 14
Number and pressure change signal, through the CPU in fault diagnosis system 14 according to the corresponding relationship of position and pressure carry out operation, energy
Parameters of the pressure sensor 11 in relation to pressure and position operation are obtained, so that it is determined that whether valve can work normally, and
The failure that the diagnosis valve of foresight may occur.Technical staff can timely have found failure so as to fast according to the information of feedback
The debugging of speed.
As the improvement of the present embodiment, the hydraulic pump 6 is single-plunger hydraulic pump, and single-plunger hydraulic pump is equipped with and can control
The man-operated mechanism 13 of cam rotation processed.When gas power loss is lost by Intelligent gas-liquid executing agency, rotation manual mechanism 13 drives hydraulic pump
Cam rotation in 6, and then realize the cyclically-varying of 6 inner volume of hydraulic pump, constantly from fuel tank draw oil, and will be hydraulic
Oily High voltage output.
The working principle of the invention：Valve is closed, electric signal issues instructions to stroke feedback device and solenoid directional control valve, makes
Obtain the two work once electrified.When stroke feedback device works, so that the gas in gas source enters air motor, motor drives hydraulic pump
Hydraulic oil in fuel tank is flowed through check valve and is sent to solenoid directional control valve by work, hydraulic pump；Solenoid directional control valve selects left station, at this time
P mouthfuls flow to spring reset hydraulic cylinder with A mouthfuls of connections, hydraulic oil, and the piston rod of spring reset hydraulic cylinder moves downward, piston rod band
Movable valve block moves downward, and valve block closes valve.Spring reset hydraulic cylinder Real-time Feedback stroke is anti-to stroke during closing valve
Device is presented, after reaching designated position, electric signal power loss makes stroke feedback device and solenoid directional control valve also power loss.Travel feedback dress
Setting the connection of power loss prevention gas source, air motor shuts down immediately, and solenoid directional control valve power loss resets to middle position under the action of the spring,
Two mouthfuls of blocking hydraulic oil of solenoid directional control valve A, B flow back, and the hydraulic oil and spring in spring reset hydraulic cylinder keep relative equilibrium shape
State, piston rod is static, and valve protects position.
Open valve, electric signal issue instructions to solenoid directional control valve, solenoid directional control valve work once electrified, solenoid directional control valve selection
Right working position is connected for A mouthfuls at this time with T mouthfuls, and hydraulic oil is back to fuel tank, on the spring effect lower piston rod of spring reset hydraulic cylinder
It rises, valve block rises, and valve is opened.Spring reset hydraulic cylinder Real-time Feedback stroke is arrived to stroke feedback device during valve opening
Up to after designated position, electric signal power loss makes solenoid directional control valve also power loss, and solenoid directional control valve resets to middle position under the action of the spring,
Two mouthfuls of blocking hydraulic oil of solenoid directional control valve A, B flow back, and the hydraulic oil and spring in spring reset hydraulic cylinder keep relative equilibrium shape
State, piston rod is static, and valve protects position.
Claims (7)
1. a kind of Intelligent gas-liquid executing agency, it is characterised in that：Including gas source（1）, stroke feedback device（2）, pneumatic controller
（3）, air motor（4）, hydraulic pump（6）, solenoid directional control valve（9）And valve block（12）；
Gas source（1）With stroke feedback device（2）Air circuit connection, stroke feedback device（2）With pneumatic controller（3）Air circuit connection,
Pneumatic controller（3）With air motor（4）Air circuit connection, hydraulic pump（6）By air motor（4）Driving, hydraulic pump（6）One end connects
It is connected to fuel tank, hydraulic pump（6）The other end and check valve（7）Oil inlet be connected, check valve（7）Oil outlet changed with electromagnetism
To valve（9）Oil inlet be connected, solenoid directional control valve（9）Actuator port and spring reset hydraulic cylinder（10）It is connected, spring
Reset hydraulic cylinder（10）Piston rod and control valve opening and closing valve block（12）It is connected；Spring reset hydraulic cylinder（10）Piston
Bar and stroke feedback device（2）Signal connection resets hydraulic cylinder for feedback spring（10）Real-time stroke.
2. Intelligent gas-liquid executing agency according to claim 1, it is characterised in that：The hydraulic pump（6）With it is described
Check valve（7）Between be equipped with the overflow valve that connect with fuel tank（8）.
3. Intelligent gas-liquid executing agency according to claim 1, it is characterised in that：The spring reset hydraulic cylinder（10）
It is the piston cylinder or plunger case that can export straight-line displacement and speed.
4. Intelligent gas-liquid executing agency according to claim 1, it is characterised in that：The hydraulic pump（6）With fuel tank it
Between be additionally provided with oil absorption filter（5）.
5. Intelligent gas-liquid executing agency according to claim 1, it is characterised in that：The spring reset hydraulic cylinder（10）
Oil pocket in be equipped with pressure sensor（11）, pressure sensor（11）With the stroke feedback device（2）And fault diagnosis
System（14）Signal connection, fault diagnosis system（14）It can pressure sensor output（11）And stroke feedback device（2）It is fed back
Information.
6. Intelligent gas-liquid executing agency described in any one according to claim 1~5, it is characterised in that：The hydraulic pump
（6）For single-plunger hydraulic pump.
7. Intelligent gas-liquid executing agency according to claim 6, it is characterised in that：The single-plunger hydraulic pump is equipped with
It can control the man-operated mechanism of cam rotation（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088935.4A CN108895047B (en) | 2018-09-18 | 2018-09-18 | Intelligent gas-liquid actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088935.4A CN108895047B (en) | 2018-09-18 | 2018-09-18 | Intelligent gas-liquid actuating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108895047A true CN108895047A (en) | 2018-11-27 |
| CN108895047B CN108895047B (en) | 2024-04-09 |
Family
ID=64360145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811088935.4A Active CN108895047B (en) | 2018-09-18 | 2018-09-18 | Intelligent gas-liquid actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108895047B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753915Y (en) * | 2004-12-31 | 2006-01-25 | 杭州和利时自动化有限公司 | Self-tolerant electrohydraulic actuator and its integrated oil way block |
| US20120321833A1 (en) * | 2011-10-24 | 2012-12-20 | Alan Ekquist | Programmable pellet press |
| CN106438592A (en) * | 2016-09-07 | 2017-02-22 | 许继集团有限公司 | Hydraulic tightening device and control system thereof |
| CN107366645A (en) * | 2017-08-05 | 2017-11-21 | 苏州方德锐精密机电科技有限公司 | A kind of abrasive Flow polishes machine hydraulic power system |
| CN107387593A (en) * | 2017-09-02 | 2017-11-24 | 吉林大学 | Motor-direct-drive type clutch electric-controlled hydraulic executing agency and its control method |
| CN108131341A (en) * | 2017-12-25 | 2018-06-08 | 扬州电力设备修造厂有限公司 | The adjustment method of the electrohydraulic actuator of one key automatic debugging system, its driving method and the debugging system |
| CN208749699U (en) * | 2018-09-18 | 2019-04-16 | 徐州阿卡控制阀门有限公司 | A kind of Intelligent gas-liquid executing agency |
-
2018
- 2018-09-18 CN CN201811088935.4A patent/CN108895047B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753915Y (en) * | 2004-12-31 | 2006-01-25 | 杭州和利时自动化有限公司 | Self-tolerant electrohydraulic actuator and its integrated oil way block |
| US20120321833A1 (en) * | 2011-10-24 | 2012-12-20 | Alan Ekquist | Programmable pellet press |
| CN106438592A (en) * | 2016-09-07 | 2017-02-22 | 许继集团有限公司 | Hydraulic tightening device and control system thereof |
| CN107366645A (en) * | 2017-08-05 | 2017-11-21 | 苏州方德锐精密机电科技有限公司 | A kind of abrasive Flow polishes machine hydraulic power system |
| CN107387593A (en) * | 2017-09-02 | 2017-11-24 | 吉林大学 | Motor-direct-drive type clutch electric-controlled hydraulic executing agency and its control method |
| CN108131341A (en) * | 2017-12-25 | 2018-06-08 | 扬州电力设备修造厂有限公司 | The adjustment method of the electrohydraulic actuator of one key automatic debugging system, its driving method and the debugging system |
| CN208749699U (en) * | 2018-09-18 | 2019-04-16 | 徐州阿卡控制阀门有限公司 | A kind of Intelligent gas-liquid executing agency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108895047B (en) | 2024-04-09 |
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