CN104595265A - Electromagnetic valve of floating piston type structure - Google Patents
Electromagnetic valve of floating piston type structure Download PDFInfo
- Publication number
- CN104595265A CN104595265A CN201310525070.4A CN201310525070A CN104595265A CN 104595265 A CN104595265 A CN 104595265A CN 201310525070 A CN201310525070 A CN 201310525070A CN 104595265 A CN104595265 A CN 104595265A
- Authority
- CN
- China
- Prior art keywords
- spool
- floating piston
- oil
- valve pocket
- little
- 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.)
- Granted
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- 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
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
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- 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
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
Abstract
The invention relates to an electromagnetic valve of a floating piston type structure. The electromagnetic valve comprises a main shaft, a reset spring, an armature, a small valve sleeve, a valve element, a floating piston and an oil filtering component. An electromagnet coil component is arranged outside the main shaft, and the small valve sleeve is provided with a small valve sleeve flow restriction orifice corresponding to the position of a valve element flow restriction orifice and a small valve sleeve oil returning hole communicated with an external oil returning cavity; when an electromagnet coil is powered off, the armature is located at the closed position, and blocks the small valve sleeve flow restriction orifice and the small valve sleeve oil returning hole, and the valve element blocks two oil passing holes in the lower portion of the valve sleeve; and when the electromagnet coil is powered on, the armature is located at the open position, the small valve sleeve flow restriction orifice is communicated with the small valve sleeve oil returning hole, the valve element moves in the axial direction and is close to the small valve element, and the two oil passing holes in the lower portion of the valve sleeve are communicated with each other. The electromagnetic valve is compact in structure, small in size and capable of better meeting the mounting requirement of types. The floating piston type structural mode is adopted, and the phenomenon that in the motion process of the valve element, clamping stagnation is generated is effectively avoided.
Description
Technical field
The present invention relates to a kind of solenoid valve of floating piston structure, particularly relate to a kind of solenoid valve being applied to the floating piston structure of Aero-Space field of hydraulic control.
Background technique
Floating piston solenoid valve is applied on supporting four redundancy electro-hydraulic servo valves of heavy launcher, mainly realizes the fault cutting function of remaining servovalve.There are some shortcomings in conventional solenoid valve, as: although volume is comparatively large, spool is easily blocked by foul, spool block the energising of rear electromagnet do not commutate do not reset, the shortcoming such as the bad adjustment of electromagnet thrust.Therefore the solenoid valve that a kind of novel floating piston structure is provided is needed badly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of compact structure, small volume, more can adapt to the solenoid valve of the floating piston structure of the installation requirements of model.
For solving the problems of the technologies described above, the solenoid valve of a kind of floating piston structure of the present invention, comprises the main shaft set gradually vertically, Returnning spring, armature, little valve pocket, spool, the oil filter assembly that are positioned within valve pocket;
Returnning spring and main shaft one end are fixed, and Returnning spring is provided with precompression; Main shaft be outside equipped with electromagnet coil assembly;
Valve core inside is provided with inner tank, and spool one end is provided with throttling spool hole, and valve core inside fuel tank is filtered assembly with conducting oil and is communicated with by the top oil through of the hole on spool and valve pocket;
Little valve pocket is provided with the little sleeve throttling hole corresponding with throttling spool hole site, and the little valve pocket spill port be communicated with outside oil back chamber; Cavity between little valve pocket and spool is independent oil tank;
When electromagnet coil power-off, armature is positioned at closed position, and armature intercepts little sleeve throttling hole and little valve pocket spill port, and spool blocks communicating with each other of two oil throughs in bottom of valve pocket;
Work as electromagnet coil power, armature is positioned at open position, and little sleeve throttling hole is communicated with little valve pocket spill port, and spool moves vertically, and near little valve pocket, two, the bottom oil through of valve pocket communicates with each other.
Also comprise floating piston, floating piston and spool inner hole, make can move between spool and floating piston.
Also comprise the electromagnetic force coordinated with coil block and regulate pad.
Electromagnetic force adjustment pad is that the electromagnetic force of the gear with 5 different-thickness regulates pad.
The aperture in little sleeve throttling hole is 3.25 with the ratio in the aperture in throttling spool hole.
The technology of the present invention effect is as follows:
First, compact structure of the present invention, small volume, can adapt to the installation requirements of model more; In addition, the present invention has oil filter structure, effectively can clean oil circuit, prevent booty from entering solenoid valve, improve the antifouling property of solenoid valve; Secondly, the present invention adopts floating piston mode of structure, effectively avoids the phenomenon that spool produces clamping stagnation in movement process; Finally, the present invention adopts top electromagnetic force to regulate the mode of structure of pad, adjustment electromagnetic force that can be easier.
Accompanying drawing explanation
Fig. 1 is the structural representation of the solenoid valve of a kind of floating piston structure provided by the present invention.
Fig. 2 is the structural representation of spool in the present invention.
Fig. 3 is that in the present invention, electromagnetic force regulates pad schematic diagram.
In figure: 1 for electromagnetic force regulate pad, 2 be solenoid housing, 3 for coil block, 4 for Returnning spring, 5 for armature, 6 for little valve pocket, 7 for little sleeve throttling hole, 8 for throttling spool hole, 9 for spool, 10 for floating piston, 11 for valve pocket, 12 for oil filter assembly.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
The present invention includes the main shaft set gradually vertically, Returnning spring 4, armature 5, little valve pocket 6, spool 9, the oil filter assembly 12 that are positioned within valve pocket 11.
Returnning spring 4 and main shaft one end are fixed, and Returnning spring 4 is provided with precompression; Main shaft be outside equipped with electromagnet coil 3 assembly; Coil block 3 place is provided with electromagnetic force and regulates pad 1, and electromagnetic force regulates pad 1 for having the electromagnetic force adjustment pad 1 of the gear of 5 different-thickness.
Spool 9 inside is provided with inner tank, and spool 9 one end is provided with throttling spool hole 8, and spool 9 inner tank is filtered assembly 12 with conducting oil and is communicated with by the top oil through of the hole on spool 9 and valve pocket 11; Spool 9 also comprises the floating piston 10 with spool 9 inner hole.
Little valve pocket 6 is provided with the little sleeve throttling hole 7 corresponding with position, throttling spool hole 8, and the little valve pocket spill port be communicated with outside oil back chamber; Cavity between little valve pocket 6 and spool 9 is independent oil tank;
Electromagnet coil assembly 3 is when no signal inputs, and Returnning spring 4, under precompression effect, makes armature 5 be in initial position.Now, hydraulic oil arrives spool 9 intermediate hole by the top oil through of oil filter assembly 12, valve pocket 11, and enters oil pocket on the left of spool 9 through throttling spool hole 8.Now, because little sleeve throttling hole 7 is blocked by armature 5, therefore, under oil pressure effect, spool 9 is in position, right shown in Fig. 1, and therefore, two oil throughs of valve pocket 11 bottom are in the state of blocking.
Electromagnet coil assembly 3 when there being signal to input, coil block 3 produce electromagnetic attraction and be greater than Returnning spring 4 precompression, armature 5 by initial position left with coil block adhesive; Now, little sleeve throttling hole 7 is opened, and hydraulic oil, by oil pocket on the left of spool 9, enters oil back chamber through little sleeve throttling hole 7, flows out solenoid valve.Due to the aperture in little sleeve throttling hole 7 and the aperture size in throttling spool hole 8 associated with each other, therefore two aperture sizes carry out detail design when be combineding with each other, and being preferably designed for the aperture in little sleeve throttling hole 7 with the ratio in the aperture in throttling spool hole 8 is 3.25.According to the appropriate design to two throttle diameter sizes, the hydraulic oil making to flow into oil pocket on the left of spool 9 produces pressure to the right to spool 9, and this pressure is less than spool 9 internal oil passages acts on spool pressure left.That is: now spool is subject to hydraulic resultant force left, promotes spool and is moved to the left, and two oil throughs of valve pocket 11 bottom are filtered assembly 12 with oil and are communicated with.
According to foregoing, solenoid valve by break-make input signal, controls moving left and right of spool 9, achieves the blocking of valve pocket 11 bottom two oil through, connectivity capabilities.
Present invention employs floating piston structure.As seen from Figure 2, floating piston 10 and spool 9 form guiding valve pair, the exterior circular column of floating piston 10 and the endoporus of spool 9 fit tightly, by controlling the cylindricity of the endoporus of spool 9 and the cylindrical of floating piston 10, coaxality and micron-sized gap, ensure that fluid can not from floating piston 10 and spool 9 cooperation place be leaked, simultaneously can flexible motion between guarantee spool 9 and floating piston 10.Because floating piston 10 adopts floating structure, spool 9, when side-to-side movement, by can be more flexible with the guiding valve side effect of floating piston 10, stopped the generation of spool 9 stuck phenomenon, has been improve the reliability of product.
In addition, the adjustment of solenoid valve electromagnetic force size regulates pad 1(Fig. 3 by electromagnetic force) convenient realization.Product parts, in the accumulation of processing and assembling time error, may cause the air gap between coil assemblies of solenoid valves 3 and armature 5 to change, thus cause the electromagnetic force of electromagnetic actuation armature to change.Electromagnetic force adjustment pad is adding man-hour, according to issuable margin of error, is designed with the gear of 5 different-thickness altogether.When causing electromagnet electromagnetic force to change because air gap changes, the electromagnetic force just by changing different-thickness gear regulates pad 1 pair of electromagnetic force to regulate.Because electromagnetic force regulates pad 1 to be positioned at solenoid valve top, the method therefore changing electromagnetic force adjustment pad is simple and convenient.
The present invention additionally uses oil filter modular construction, improves the resistance tocrocking of solenoid valve.
Claims (5)
1. a solenoid valve for floating piston structure, is characterized in that: comprise the main shaft set gradually vertically, Returnning spring, armature, little valve pocket, spool, the oil filter assembly that are positioned within valve pocket;
Described Returnning spring and main shaft one end are fixed, and described Returnning spring is provided with precompression; Described main shaft be outside equipped with electromagnet coil assembly;
Described valve core inside is provided with inner tank, and described spool one end is provided with throttling spool hole, and described valve core inside fuel tank is filtered assembly with conducting oil and is communicated with by the top oil through of the hole on spool and valve pocket;
Described little valve pocket is provided with the little sleeve throttling hole corresponding with described throttling spool hole site, and the little valve pocket spill port be communicated with outside oil back chamber; Cavity between described little valve pocket and described spool is independent oil tank;
When electromagnet coil power-off, described armature is positioned at closed position, and described armature intercepts little sleeve throttling hole and little valve pocket spill port, and described spool blocks communicating with each other of two oil throughs in bottom of valve pocket;
Work as electromagnet coil power, described armature is positioned at open position, and described little sleeve throttling hole is communicated with little valve pocket spill port, and described spool moves vertically, and near little valve pocket, two, the bottom oil through of described valve pocket communicates with each other.
2. the solenoid valve of a kind of floating piston structure according to claim 1, is characterized in that: also comprise floating piston, described floating piston and spool inner hole, makes can move between described spool and floating piston.
3. the solenoid valve of a kind of floating piston structure according to claim 1, is characterized in that: also comprise the electromagnetic force coordinated with described coil block and regulate pad.
4. the solenoid valve of a kind of floating piston structure according to claim 3, is characterized in that: described electromagnetic force adjustment pad is that the electromagnetic force of the gear with 5 different-thickness regulates pad.
5. the solenoid valve of a kind of floating piston structure according to claim 1, is characterized in that: the described aperture in little sleeve throttling hole is 3.25 with the ratio in the aperture in throttling spool hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525070.4A CN104595265B (en) | 2013-10-30 | 2013-10-30 | Electromagnetic valve of floating piston type structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525070.4A CN104595265B (en) | 2013-10-30 | 2013-10-30 | Electromagnetic valve of floating piston type structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595265A true CN104595265A (en) | 2015-05-06 |
| CN104595265B CN104595265B (en) | 2017-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310525070.4A Active CN104595265B (en) | 2013-10-30 | 2013-10-30 | Electromagnetic valve of floating piston type structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595265B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277334A (en) * | 2000-07-28 | 2000-12-20 | 武汉理工大学 | Two-position and three-way solenoid valve with double free inner conic cores |
| US20100282988A1 (en) * | 2009-05-08 | 2010-11-11 | Honeywell International In. | Single coil redundant valve |
| CN102580233A (en) * | 2011-01-11 | 2012-07-18 | 孙文辉 | Medical electromagnetic valve with magnetic fluid |
| CN102644632A (en) * | 2012-05-13 | 2012-08-22 | 合肥长源液压股份有限公司 | Electro-hydraulic multiple-way directional valve |
-
2013
- 2013-10-30 CN CN201310525070.4A patent/CN104595265B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277334A (en) * | 2000-07-28 | 2000-12-20 | 武汉理工大学 | Two-position and three-way solenoid valve with double free inner conic cores |
| US20100282988A1 (en) * | 2009-05-08 | 2010-11-11 | Honeywell International In. | Single coil redundant valve |
| CN102580233A (en) * | 2011-01-11 | 2012-07-18 | 孙文辉 | Medical electromagnetic valve with magnetic fluid |
| CN102644632A (en) * | 2012-05-13 | 2012-08-22 | 合肥长源液压股份有限公司 | Electro-hydraulic multiple-way directional valve |
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| Publication number | Publication date |
|---|---|
| CN104595265B (en) | 2017-02-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |