CN201513269U - Electromagnetic control valve - Google Patents
Electromagnetic control valve Download PDFInfo
- Publication number
- CN201513269U CN201513269U CN2009202230712U CN200920223071U CN201513269U CN 201513269 U CN201513269 U CN 201513269U CN 2009202230712 U CN2009202230712 U CN 2009202230712U CN 200920223071 U CN200920223071 U CN 200920223071U CN 201513269 U CN201513269 U CN 201513269U
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- control valve
- control
- oil
- valve
- pressure
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Abstract
The utility model relates to a high flow rate and high speed electromagnetic control valve which is applicable to hydraulic pressure and oil injection control. The control valve has the structure of integrating a conical surface sealing structure and a pressure balancing structure which comprises an oil supply part and an oil injection part. The control valve mainly consists of a control valve core, a valve sleeve and a control valve body, wherein the control valve core has a blind hole hollow structure and consists of two sections of circle and a circular groove which is positioned between two cylinders; the cylinder parts are sealed in a matching way, and the circular groove has the function of equalizing pressure; and the motion of the valve core is not influenced by oil supply pressure. The end part of the control valve core is provided with a conical surface which is sealed with the control valve sleeve in a matching way and is connected on an electromagnetic valve armature iron by a fixed armature iron seat; and the positions of an electromagnetic valve coil and the armature iron can be adjusted according to the thickness of a gasket. An oil cavity arranged at the side of the armature iron is communicated with a main oil duct, so that oil return is ensured to be smooth, and pressure is balanced.
Description
Technical field:
The utility model relates to solenoid electric valve, specifically is used for electronic flow control.
Background technique:
Solenoid valve is the unified critical piece of hydraulic pressure system, requires high-speed response, and the quality of movement parts must the little high speed motion that could satisfy solenoid valve.In addition, solenoid valve is operated in the hydraulic system, and control piston is not subjected to hydraulic coupling to guarantee resistance minimum in the movement process as far as possible.In existing solenoid valve, mainly comprise structures such as ball valve, Proportional valve, switch valve, these solenoid valves respond fast for big flow, be difficult at present meet the demands, response not only requires solenoid movement part quality very little fast, and complex structure is higher to processing technology and required precision.Under the existing manufacturing technology of China, control valve seal form and structure can't satisfy big flow high-speed response control requirement.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of rational in infrastructure, the solenoid electric valve that the processing technique difficulty is moderate.
The overall structure of solenoid electric valve is that fuel feeding, fuel-displaced two-part pressure balancing structure and conical surface seal structure composition form.The control spool is realized laterally fast moving under the acting in conjunction of electromagnetic coil and spring, when electromagnetic coil was not switched on, solenoid valve was in closed condition.Liquid such as fuel oil enter in the valve by the fuel feeding oil duct, and the spool conical surface and valve pocket closely cooperate, and realize that the cut-out of oil supply gallery and oil discharge passage high low pressure and conducting realize spraying.When spraying back pressure when higher, the fuel oil that will have certain back pressure by the oil return oil duct is introduced in the armature cavity, makes that the spool pressure at two ends is in a basic balance. and spool utilization and fluid pressure change irrelevant, only depend on and electromagnetic performance and sole mass.
High-speed electro-magnet is the solenoid electromagnetic coil, electromagnet is carried out the control of high speed power on/off by its processing circuit of microcontroller, when control signal is in high level, solenoid valve is in opening state, when control signal is low level, solenoid valve is a closed condition, and by the processing of booster circuit, the response time of solenoid valve is very fast.
The control spool is the blind hole hollow structure, the control spool constitutes guiding by the multistage cylinder, control spool right side is by the conical surface and the sealing of control valve pocket, pass on left the control spool and realize sealing with cooperating of control valve pocket, two annular grooves on the control spool can reduce the leakage of fitting surface and play all pressure effects; Control spool and control valve cover closely cooperate, and control valve pocket center has annular oil cavity to guarantee fuel flow, and realizes pressure balance.Between control valve pocket and the control valve body is interference fit, and the control valve pocket is pressed on the control valve body by the right side boss.
Control valve body is the installation parent of other parts, realize pressure balance control by three oil ducts, oil-feed oil duct and fuel-displaced oil duct are realized the conducting and the cut-out of fuel oil by control spool and closely cooperating of control valve pocket, fuel-displaced oil duct draws back the armature cavity by the oil return oil duct with the fuel oil back pressure, realizes fuel-displaced oil duct and armature cavity two ends back-pressure balance.Thereby make control the stressed of spool become simple.
Description of drawings:
Fig. 1 is the solenoid electric valve structural representation
Fig. 2 is the solenoid electric valve structural representation, and is vertical with Fig. 1 section
Fig. 3 is solenoid electric valve valve core structure figure
Among the figure: 1-electromagnetic control coil, 2-flexible adjustment pad, 3-spool return spring, 4-armature seat holddown spring, 5-armature seat, 6-controls spool, the 7-control valve body, 8-jump ring, 9-armature return spring, pad is adjusted in the 10-gap, and pad is adjusted in the 11-gap, and pad is adjusted in the 12-gap, 13-controls valve pocket, I-fuel feeding oil duct, the fuel-displaced oil duct of II-, III-oil return oil duct.
Specific embodiments:
With the part of solenoid valve according to after the assembly relation assembling shown in the drawings, according to the requirement of solenoid valve and the requirement of flow, pad 12 is adjusted in the gap and the thickness of pad 10 is adjusted to adjust the magnetic gap size in the gap, adjust pad 11 to adjust the movement travel of control spool by the gap, adjust the power of 3 spool return springs by adjusting 2 flexible adjustment pads.
The gap is adjusted pad 10 and is played seal action simultaneously, adjust the position after, tighten electromagnetic coil, high pressure fuel is introduced control valve body by I oil-feed oil duct, be connected with oil sprayer or other hydraulic partss by the fuel-displaced oil duct of II.High-speed electro-magnet is the solenoid electromagnet structure, and by Transistor-Transistor Logic level conversion and control power on/off, and then the motion of control control spool realizes the fuel feeding of pulsation.
The control spool is a precision pair with the control valve pocket, and right-hand member is realized the connection and the cut-out of high pressure fuel by conical surface seal.The control spool be normally closed under nature, and the effect by return spring makes to be controlled spool and be close to and firmly control valve pocket.In case control signal arrives, armature will obtain an active force to the right to overcome the elastic force of return spring under the effect of electromagnetic coil, solenoid valve is opened, be in the fuel feeding state, after control signal was changeed low level by high level, the electromagnetic coil electromagnetic force disappeared, control spool return under the effect of return spring, cut off fuel oil, solenoid valve is in closed condition.
Solenoid valve is under unlatching or closed condition, fuel-displaced oil duct end has stronger back pressure, back pressure can give the control spool active force left, make the control spool no longer be in the hydraulic resistance balance state, at this moment, fuel oil draws back the armature cavity by III oil return oil duct, and control spool left and right sides fluid power is cancelled out each other substantially and is in the hydraulic resistance balance state again.
Claims (3)
1. solenoid electric valve, mainly form by control spool, valve pocket and control valve body three parts, it is characterized in that this solenoid valve adopts interior outside pressure equalizing piston structure and conical surface seal structure composition to form, be processed with fuel feeding oil duct, fuel-displaced oil duct, oil return oil duct in the control valve body, the control spool is the blind hole hollow structure.
2. solenoid electric valve as claimed in claim 1 is characterized in that the seal section of controlling spool offers the piezometer ring groove, and control spool right side is by the conical surface and the sealing of control valve pocket, the sealing in control spool left side by with the realization that cooperates of control valve pocket.
3. solenoid electric valve as claimed in claim 1 is characterized in that controlling the valve pocket center and is processed with annular oil cavity, is interference fit between control valve pocket and the valve body, and the control valve pocket is pressed on the valve body by the right side boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202230712U CN201513269U (en) | 2009-10-13 | 2009-10-13 | Electromagnetic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202230712U CN201513269U (en) | 2009-10-13 | 2009-10-13 | Electromagnetic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201513269U true CN201513269U (en) | 2010-06-23 |
Family
ID=42484677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202230712U Expired - Fee Related CN201513269U (en) | 2009-10-13 | 2009-10-13 | Electromagnetic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201513269U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358914A (en) * | 2014-10-15 | 2015-02-18 | 浙江华益机械有限公司 | Novel proportional valve |
| CN105757299A (en) * | 2016-04-29 | 2016-07-13 | 绵阳富临精工机械股份有限公司 | One-way-valve-structure-integrated electromagnetic valve |
| CN106996474A (en) * | 2016-01-22 | 2017-08-01 | 贵州万里通科贸有限公司 | A kind of magnetic valve |
| CN106996462A (en) * | 2016-01-22 | 2017-08-01 | 贵州万里通科贸有限公司 | A kind of electromagnetic valve |
| CN113324040A (en) * | 2021-05-26 | 2021-08-31 | 江苏八方动力机械有限公司 | Novel electromagnetic valve |
-
2009
- 2009-10-13 CN CN2009202230712U patent/CN201513269U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358914A (en) * | 2014-10-15 | 2015-02-18 | 浙江华益机械有限公司 | Novel proportional valve |
| CN106996474A (en) * | 2016-01-22 | 2017-08-01 | 贵州万里通科贸有限公司 | A kind of magnetic valve |
| CN106996462A (en) * | 2016-01-22 | 2017-08-01 | 贵州万里通科贸有限公司 | A kind of electromagnetic valve |
| CN105757299A (en) * | 2016-04-29 | 2016-07-13 | 绵阳富临精工机械股份有限公司 | One-way-valve-structure-integrated electromagnetic valve |
| CN105757299B (en) * | 2016-04-29 | 2018-04-03 | 绵阳富临精工机械股份有限公司 | A kind of magnetic valve of integrated check valve structure |
| CN113324040A (en) * | 2021-05-26 | 2021-08-31 | 江苏八方动力机械有限公司 | Novel electromagnetic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20121013 |