CN103775659B - Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power - Google Patents
Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power Download PDFInfo
- Publication number
- CN103775659B CN103775659B CN201310541963.8A CN201310541963A CN103775659B CN 103775659 B CN103775659 B CN 103775659B CN 201310541963 A CN201310541963 A CN 201310541963A CN 103775659 B CN103775659 B CN 103775659B
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- Prior art keywords
- spool
- import
- pressure
- fluid
- magnetic valve
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/0624—Lift valves
- F16K31/0627—Lift valves with movable valve member positioned between seats
- F16K31/0631—Lift valves with movable valve member positioned between seats with ball shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
Abstract
A kind of electromagnetic valve control method that can guarantee that the duty before energising after a loss of power and magnetic valve, the method includes: when 1) magnetic valve is not powered on, and spool remains static, and fluid flow to import；2) being energized magnetic valve, spool moves, conducting import and outlet, and fluid flows to outlet from import；3) on spool, increase by the 4th active force, making the 4th active force acting on spool and the fluid pressure acted on spool more than the spring force acting on valve core reseting spring, when magnetic valve power-off, spool does not moves, import and outlet still conducting, fluid flows to outlet from import.The invention provides one and ensure that after "on" position, magnetic valve will be caused to leave the electromagnetic valve control method that can guarantee that the duty before energising after a loss of power and the magnetic valve of previous duty due to the power-off for some reason of maloperation or system.
Description
Technical field
The invention belongs to electromechanical transformation apparatus technical field, relate to a kind of can guarantee that the work before energising after a loss of power
Make electromagnetic valve control method and the magnetic valve of state, particularly relate to keep previous state after one has power-off,
And the magnetic valve again resetted under specific instruction.
Background technology
Current domestic magnetic valve great majority are normal open electricity or normal off electric switch valve, and the magnetic valve of this type is in work
As time only have two kinds of duties, one is solenoid valves, and valve opens or closes；Two is magnetic valve power-off,
Valve closing or open, if power-off for some reason suddenly when this type magnetic valve is in energising duty, electromagnetism
Valve can not keep duty during former energising.
Summary of the invention
In order to solve technical problem present in background technology, the invention provides one and ensure that in energising
After state, will not cause due to the power-off for some reason of maloperation or system magnetic valve leave previous duty
Electromagnetic valve control method and the magnetic valve of the duty before energising is can guarantee that after power-off.
The technical solution of the present invention is: the invention provides a kind of can guarantee that after a loss of power before energising
The electromagnetic valve control method of duty, its be characterized in that described in can guarantee that after a loss of power before energising
The electromagnetic valve control method of duty comprise the following steps:
1), when magnetic valve is not powered on, the fluid pressure on spool is acted on less than or equal to acting on valve core reset
Spring force on spring, spool remains static, and fluid flow to import；
2) magnetic valve is energized, acts on the electromagnetic force on spool and the fluid pressure acted on spool
Being more than the spring force acting on valve core reseting spring, spool moves, and conducting import and outlet, fluid is from import
Flow to outlet；
3) on spool, increase by the 4th active force, make the 4th active force acting on spool and act on spool
On fluid pressure more than acting on the spring force on valve core reseting spring, when magnetic valve power-off, act on
Electromagnetic force on spool disappears, owing to acting on the 4th active force on spool and the fluid acting on spool
Pressure is more than acting on the spring force on valve core reseting spring, and spool does not moves, import and outlet still conducting,
Fluid flows to outlet from import.
Said method also includes after step 3):
4) it is gradually reduced the 4th active force, makes the 4th active force acting on spool and act on spool
Fluid pressure is gradually equal to or less than acting on the spring force on valve core reseting spring, and spool moves, import with
Outlet can not turn on, and fluid flow to import.
Above-mentioned steps 3) in increase the 4th active force specific implementation be: bypass duct is set on spool；
Pressure in described bypass duct acts on spool.
Pressure in above-mentioned bypass duct acts on the direction on spool and the fluid pressure side acted on spool
To being identical or contrary.
Pressure in above-mentioned bypass duct acts on the direction on spool and the fluid pressure side acted on spool
In time being identical, the specific implementation of described step 4) is:
It is gradually reduced the pressure increased in bypass duct, makes to act on being formed by bypass duct on spool
4th active force and the fluid pressure acted on spool are gradually equal to or less than acting on valve core reseting spring
Spring force, spool moves, import with outlet can not turn on, fluid flow to import.
Pressure in above-mentioned bypass duct acts on the direction on spool and the fluid pressure side acted on spool
In time being contrary, the specific implementation of described step 4) is:
The pressure being gradually increased in bypass duct, makes to act on the formed the 4th on spool by bypass duct
Active force and the fluid pressure acted on spool are gradually equal to or less than the bullet acting on valve core reseting spring
Spring force, spool moves, and import can not turn on outlet, and fluid flow to import.
Above-mentioned steps 4) in increase bypass duct pressure time, be provided with for promoting spool in described bypass duct
Push rod；The pressure of the bypass duct of described increase promotes spool, import can not turn on outlet by push rod,
Fluid flow to import.
Pressure in above-mentioned bypass duct acts on the direction on spool and the fluid pressure side acted on spool
In time being contrary, the specific implementation of described step 4) is:
It is gradually lowered the pressure of fluid, the 4th active force making to act on spool and the stream acting on spool
Body pressure is gradually equal to or less than acting on the spring force on valve core reseting spring, and spool moves, import with go out
Mouth can not turn on, and fluid flow to import.
A kind of based on the magnetic valve controlling party that can guarantee that the duty before energising as above after a loss of power
The magnetic valve of method, including fluid inlet, fluid issuing, spool and be arranged on spool for valve core reset
Back-moving spring, described fluid inlet is connected with fluid issuing by spool；It is characterized in that institute
State magnetic valve and also include that bypass duct, the pressure in described bypass duct directly act on spool.
Above-mentioned magnetic valve also includes the spool push rod for promoting valve core reset being arranged in bypass duct.
The invention have the advantage that
The present invention is, on the basis of existing spool, it is increased bypass, and is acted on spool by this bypass generation
4th active force (first three active force is fluid pressure respectively, valve core reseting spring power and electromagnetic force),
Spool increases the 4th active force, the 4th active force making to act on spool and the stream acting on spool
Body pressure, more than acting on the spring force on valve core reseting spring, when magnetic valve power-off, acts on spool
Electromagnetic force disappear, big with the fluid pressure acted on spool owing to acting on the 4th active force on spool
In the spring force acted on valve core reseting spring, spool does not moves, import and outlet still conducting, fluid
Outlet is flowed to from import.The switch valve that the present invention is different from the past, when solenoid valves, valve closing or
Opening, when magnetic valve power-off, valve is still closed or opens, and keeps lock-out state, and only given
After specific instruction, magnetic valve just departs from lock-out state.The present invention ensure that after "on" position, Bu Huiyou
Magnetic valve is caused to leave previous duty in maloperation or system power-off for some reason, reliable to system to reduce
Property requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of magnetic valve provided by the present invention；
Fig. 2 is the structural representation of the second embodiment of magnetic valve provided by the present invention；
Wherein:
1-import；2-exports；3-spool；4-push rod；5-the second import；6-triple feed inlet.
Detailed description of the invention
The invention provides a kind of magnetic valve controlling party that can guarantee that the duty before energising after a loss of power
Method, the method comprises the following steps:
1), when magnetic valve is not powered on, the fluid pressure on spool is acted on less than or equal to acting on valve core reset
Spring force on spring, spool remains static, and fluid flow to import；
2) magnetic valve is energized, acts on the electromagnetic force on spool and the fluid pressure acted on spool
Being more than the spring force acting on valve core reseting spring, spool moves, and conducting import and outlet, fluid is from import
Flow to outlet；
3) (first three active force is fluid pressure respectively, valve core reset bullet to increase by the 4th active force on spool
Spring force and electromagnetic force), make the 4th active force acting on spool and the fluid pressure acted on spool
More than acting on the spring force on valve core reseting spring, when magnetic valve power-off, act on the electromagnetism on spool
Power disappears, owing to acting on the 4th active force on spool with the fluid pressure acted on spool more than effect
Spring force on valve core reseting spring, spool does not moves, and import and outlet still conducting, fluid is from import
Flow to outlet.
4) it is gradually reduced the 4th active force, makes the 4th active force acting on spool and act on spool
Fluid pressure is gradually equal to or less than acting on the spring force on valve core reseting spring, and spool moves, import with
Outlet can not turn on, and fluid flow to import.
Wherein, the specific implementation increasing by the 4th active force in step 3) is: arrange bypass on spool
Pipeline；Pressure in bypass duct acts on spool.
The direction that pressure in bypass duct acts on spool with the fluid pressure direction acted on spool is
Identical or contrary.
When the pressure in bypass duct acts on the direction on spool and the fluid pressure direction acted on spool
When being identical, the specific implementation of step 4) is:
It is gradually reduced the pressure increased in bypass duct, makes to act on being formed due to bypass duct on spool
The 4th active force and the fluid pressure acted on spool gradually equal to or less than acting on valve core reseting spring
On spring force, spool moves, import with outlet can not turn on, fluid flow to import.
When the pressure in bypass duct acts on the direction on spool and the fluid pressure direction acted on spool
When being contrary, the specific implementation of step 4) is:
The pressure being gradually increased in bypass duct, make to act on spool due to bypass duct formed
Four active forces and the fluid pressure acted on spool are gradually equal to or less than acting on valve core reseting spring
Spring force, spool moves, and import can not turn on outlet, and fluid flow to import.
When step 4) increases bypass duct pressure, in bypass duct, it is provided with the push rod for promoting spool；
Increase bypass duct pressure by push rod promote spool, import with export can not turn on, fluid flow to into
Mouthful.
When the pressure in bypass duct acts on the direction on spool and the fluid pressure direction acted on spool
When being contrary, the specific implementation of step 4) is:
It is gradually lowered the pressure of fluid, the 4th active force making to act on spool and the stream acting on spool
Body pressure is gradually equal to or less than acting on the spring force on valve core reseting spring, and spool moves, import with go out
Mouth can not turn on, and fluid flow to import.
The present invention is providing the above-mentioned electromagnetic valve control method that can guarantee that the duty before energising after a loss of power
While, additionally providing a kind of magnetic valve based on as above principle, this magnetic valve includes fluid inlet, fluid
Outlet, spool and be arranged on spool the back-moving spring for valve core reset, fluid inlet by spool with
Fluid issuing connects；In addition, magnetic valve provided by the present invention also includes bypass duct, shunt valve
Pressure in road directly acts on spool.
Magnetic valve also includes the spool push rod for promoting valve core reset being arranged in bypass duct.
Below to act on direction on spool when the pressure (the 4th active force) in bypass duct and to act on
Fluid pressure direction on spool be contrary in case of, describe the present invention in conjunction with the embodiments:
Seeing Fig. 1, show electromagnet and be not powered on state, fluid enters from import 1, due to ball (spool 3)
Left side is only leaned on, and fluid can not be from outlet 2 outflow；When solenoid valves, electromagnetic force overcomes spring force, makes
Push rod 4 moves right, and end bulb (spool 3) right side is only leaned on, and now fluid can flow to export 2 from import 1.
If magnetic valve power-off, the fluid pressure that now ball (spool 3) is subject to is more than spring restoring force, ball (spool
3) still in the right side only by position, it can be ensured that maintain the original state after power-off for some reason.If needing electromagnetism
Valve leaves lock-out state, can have various ways, first kind of way (such as Fig. 1), control the second import 5 with
And at triple feed inlet 6 pressure (the second import 5 independently forms or is collectively forming with triple feed inlet 6 by the second import 5
Bypass duct), promote push rod, finally make ball (spool 3) return to initial position；The second way is (see figure
2), it is not necessary to push rod, control the second import 5 pressure, promote ball (spool 3) to leave latched position；3rd
Planting mode (see figure 2), reduce the pressure of import 1, the fluid pressure being subject to when ball (spool 3) is less than spring
Reset force, then ball (spool 3) leaves latched position.
The reset mode of magnetic valve is not limited to and above-mentioned 3 kinds.
According to present invention, when ball (spool 3) the right is only leaned on, the relevant parameter setting magnetic valve is as follows:
The elastic coefficient: 10N/mm；Amount of spring compression during system quiescence: 5mm；Ball (spool 3) right side is only
By time spring decrement: 10mm；Import oil pressure: 6MPa；Second import oil pressure: 0MPa before unlocking；
Import 2 oil pressure: 6MPa when unlocking；Circularhole diameter: 5mm；Ball (spool 3) diameter: 10mm；
Suction during solenoid valves: 300N.
Claims (9)
1. can guarantee that an electromagnetic valve control method for the duty before energising after a loss of power, its feature exists
In: the described electromagnetic valve control method that can guarantee that the duty before energising after a loss of power comprises the following steps:
1), when magnetic valve is not powered on, the fluid pressure on spool is acted on less than or equal to acting on valve core reset
Spring force on spring, spool remains static, and fluid flow to import；
2) magnetic valve is energized, acts on the electromagnetic force on spool and the fluid pressure acted on spool
Being more than the spring force acting on valve core reseting spring, spool moves, and conducting import and outlet, fluid is from import
Flow to outlet；
3) on spool, increase by the 4th active force, make the 4th active force acting on spool and act on spool
On fluid pressure more than acting on the spring force on valve core reseting spring, when magnetic valve power-off, act on
Electromagnetic force on spool disappears, owing to acting on the 4th active force on spool and the fluid acting on spool
Pressure is more than acting on the spring force on valve core reseting spring, and spool does not moves, import and outlet still conducting,
Fluid flows to outlet from import；The specific implementation increasing by the 4th active force is: arrange bypass on spool
Pipeline, the pressure in described bypass duct acts on spool.
The magnetic valve control that can guarantee that the duty before energising after a loss of power the most according to claim 1
Method processed, it is characterised in that: described method is in step 3) after also include:
4) it is gradually reduced the 4th active force, makes the 4th active force acting on spool and act on spool
Fluid pressure is gradually equal to or less than acting on the spring force on valve core reseting spring, and spool moves, import with
Outlet can not turn on, and fluid flow to import.
The magnetic valve control that can guarantee that the duty before energising after a loss of power the most according to claim 2
Method processed, it is characterised in that: the pressure in described bypass duct acts on direction on spool and acts on valve
Fluid pressure direction on core is identical or contrary.
The magnetic valve control that can guarantee that the duty before energising after a loss of power the most according to claim 3
Method processed, it is characterised in that: the pressure in described bypass duct acts on direction on spool and acts on valve
When fluid pressure direction on core is identical, described step 4) specific implementation be:
Gradually decrease the pressure in bypass duct, make to act on spool due to bypass duct formed
Four active forces and the fluid pressure acted on spool are gradually equal to or less than acting on valve core reseting spring
Spring force, spool moves, and import can not turn on outlet, and fluid flow to import.
The magnetic valve control that can guarantee that the duty before energising after a loss of power the most according to claim 3
Method processed, it is characterised in that: the pressure in described bypass duct acts on direction on spool and acts on valve
When fluid pressure direction on core is contrary, described step 4) specific implementation be:
The pressure being gradually increased in bypass duct, make to act on spool due to bypass duct formed
Four active forces and the fluid pressure acted on spool are gradually equal to or less than acting on valve core reseting spring
Spring force, spool moves, and import can not turn on outlet, and fluid flow to import.
The magnetic valve control that can guarantee that the duty before energising after a loss of power the most according to claim 5
Method processed, it is characterised in that: described step 4) in increase bypass duct pressure time, set in described bypass duct
It is equipped with the push rod for promoting spool；The pressure of the bypass duct of described increase promotes spool by push rod, enters
Mouth can not turn on outlet, and fluid flow to import.
The magnetic valve control that can guarantee that the duty before energising after a loss of power the most according to claim 6
Method processed, it is characterised in that: the pressure in described bypass duct acts on direction on spool and acts on valve
When fluid pressure direction on core is contrary, described step 4) specific implementation be:
It is gradually lowered the pressure of fluid, the 4th active force making to act on spool and the stream acting on spool
Body pressure is gradually equal to or less than acting on the spring force on valve core reseting spring, and spool moves, import with go out
Mouth can not turn on, and fluid flow to import.
8. one kind based on the described duty that can guarantee that after a loss of power before energising arbitrary in claim 1-7
The magnetic valve of electromagnetic valve control method, including fluid inlet, fluid issuing, spool and be arranged on spool
The upper back-moving spring for valve core reset, described fluid inlet is connected with fluid issuing by spool；It is special
Levy and be: described magnetic valve also includes that bypass duct, the pressure in described bypass duct directly act on spool
On.
Magnetic valve the most according to claim 8, it is characterised in that: described magnetic valve also includes being arranged on
The spool push rod for promoting valve core reset in bypass duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541963.8A CN103775659B (en) | 2013-11-05 | 2013-11-05 | Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310541963.8A CN103775659B (en) | 2013-11-05 | 2013-11-05 | Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103775659A CN103775659A (en) | 2014-05-07 |
| CN103775659B true CN103775659B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310541963.8A Active CN103775659B (en) | 2013-11-05 | 2013-11-05 | Can guarantee that electromagnetic valve control method and the magnetic valve of the duty before energising after a loss of power |
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| CN (1) | CN103775659B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254226B (en) * | 2018-03-23 | 2020-07-28 | 亚洲硅业(青海)股份有限公司 | Pollution-free closed sampling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184819Y (en) * | 1994-03-28 | 1994-12-07 | 郑孚 | Self holding electramagnetic valve |
| US5975654A (en) * | 1994-08-06 | 1999-11-02 | Itt Manufacturing Enterprises Inc. | Valve unit, in particular for hydraulic brake systems with antilock and/or wheel-slip control |
| DE10239128A1 (en) * | 2002-02-12 | 2003-08-28 | Continental Teves Ag & Co Ohg | Electromagnetic valve especially for motor vehicle brakes having anti skid control has bypass channel to reduce hydraulic resistance |
| CN101201111A (en) * | 2007-11-20 | 2008-06-18 | 张让莘 | Numerical control electromagnetic valve |
| CN203009975U (en) * | 2013-01-07 | 2013-06-19 | 中国农业科学院农田灌溉研究所 | Magnetic valve |
-
2013
- 2013-11-05 CN CN201310541963.8A patent/CN103775659B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184819Y (en) * | 1994-03-28 | 1994-12-07 | 郑孚 | Self holding electramagnetic valve |
| US5975654A (en) * | 1994-08-06 | 1999-11-02 | Itt Manufacturing Enterprises Inc. | Valve unit, in particular for hydraulic brake systems with antilock and/or wheel-slip control |
| DE10239128A1 (en) * | 2002-02-12 | 2003-08-28 | Continental Teves Ag & Co Ohg | Electromagnetic valve especially for motor vehicle brakes having anti skid control has bypass channel to reduce hydraulic resistance |
| CN101201111A (en) * | 2007-11-20 | 2008-06-18 | 张让莘 | Numerical control electromagnetic valve |
| CN203009975U (en) * | 2013-01-07 | 2013-06-19 | 中国农业科学院农田灌溉研究所 | Magnetic valve |
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| Publication number | Publication date |
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| CN103775659A (en) | 2014-05-07 |
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