CN101696740B - Switch valve - Google Patents
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- CN101696740B CN101696740B CN2009101174635A CN200910117463A CN101696740B CN 101696740 B CN101696740 B CN 101696740B CN 2009101174635 A CN2009101174635 A CN 2009101174635A CN 200910117463 A CN200910117463 A CN 200910117463A CN 101696740 B CN101696740 B CN 101696740B
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- valve
- magnetic conduction
- electromagnet
- valve body
- magnetic
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Abstract
The invention discloses a switch valve. A magnetic latching type electromagnet is formed by oppositely combining two annular permanent magnets and two annular magnetizers; the magnetizing direction of the annular permanent magnets is axial; coils of the electromagnet are in serial connection, and current directions of the coils are the same; because the magnetic latching type electromagnet is adopted, the permanent magnets provide retention force required by a valve plug when the switch valve is in an on or off state, the coils are not required to have holding current, the energy consumption of the switch valve is reduced, and the heat value of the electromagnet is decreased; the switch valve comprises magnetic latching type electromagnets, a conical valve type valve plug and a valve body, wherein the number of the magnetic latching type electromagnets is two; the two magnetic latching type electromagnets are symmetrically distributed at two ends of the conical valve type valve plug; and after the coils of the two magnetic latching type electromagnets are electrified, one magnetic latching type electromagnet absorbs the valve plug, and the other magnetic latching type electromagnet pushes the valve plug so as to drive the conical valve type valve plug to move to control the opening or closing of an oil path between an A port and a C port or between a B port and the C port and further control the flow rate of an A valve port and a B valve port.
Description
Technical field
The present invention relates to the switch valve of Electromagnetic Drive.
Background technique
Traditional electrical magnet is made up of coil, yoke, armature, if coil is the cast form, fillings such as insulation fat will be arranged also, and the structural design of electromagnet has the shortcoming that eddy current loss is big, speed of response is slow, heating value is high at present.
The routine digital valve realizes trace control to improve response frequency, can improve response frequency although reduce the spool quality with the power of surging, and the raising of switch valve response frequency mainly relies on increase driver active force and dwindles the response time.The driver of high-speed switch valve mainly is a strong electromagnet, and the general response time is several milliseconds; High electromagnetic force needs more Number of ampere turns, causes the solenoid valve heating, and complex structure, volume are bigger.Owing to be subjected to factor affecting such as installing space, electromagnetic force, motional inertia, the response capability that further improves solenoid valve has run into restriction, in addition, because switch valve is subjected to the restriction of switching time, spool stroke can not be too big, so the rated flow of digital valve is restricted, under identical driving force, increase the rated flow of valve, will reduce the speed of response of switch valve.
The conventional switch valve is designed to the switch valve structure that an electromagnet adds Returnning spring, electromagnet need overcome spring force during open and close, spool is opened, simultaneously when spool remains on out (or closing) position, also need bigger maintenance electric current, thereby increased the energy consumption and the heating value of electromagnet.
The valve port form of conventional switch valve mostly is cone valve type, ball-valve type and sliding valve style, is generally the 2/2-way formula for the cone valve type switch valve, can only have two oil circuits to communicate with each other and disconnect, and has limited its application area.Though and can make the form of two-bit triplet to the ball-valve type switch valve, but because the static pressure imbalance on its spool, therefore having limited it can only be used for low pressure small flow occasion, when being used for the high-pressure high-flow occasion, because static pressure imbalance on the spool, so need electromagnet that very big driving force is provided, so can reduce the speed of response of valve.And, can make the two-bit triplet formula for the sliding valve style switch valve, the static pressure on the spool is balance also, leakage rate was big when existence was closed when but the sliding valve style switch valve adopted the zero lap mode, and adopt when bearing opening, there is the contradiction in displacement dead band again, reduced the speed of response of valve.
Simultaneously along with the increase of high-speed switch valve working pressure, cause the surge increase of power of spool, also will reduce the speed of response of switch valve.Therefore, there is the contradiction between high-speed response and high pressure, the big flow in high-speed switch valve.At present both at home and abroad the high-speed solenoid valve of development is difficult to reach simultaneously the response time and is higher than 10L/Min less than 4ms, working pressure greater than 20Mpa, flow; And the digital valve of using pilot valve to control, although can realize high pressure, big flow, but its frequency response reduces greatly.
Summary of the invention
The objective of the invention is to overcome the above-mentioned defective of prior art, provide a kind of magnetic lock formula electromagnet big flow high-speed switch valve, by improvement to electromagnet structure and valve arrangement design thereof, improved the speed of response of electromagnet, reduce the energy consumption and the heating value of electromagnet, and then improved the speed of response of valve.
The present invention is a kind of switch valve, comprise electromagnet, control coil, cone valve type two-position three-way valve, magnetic lock formula electromagnet is installed in the left and right magnetic conduction valve body 10,12, second annular permanent magnnet 4, first annular magnetizer 3 and first annular permanent magnnet 2 in the magnetic lock formula electromagnet are superimposed together, be fixed between oil outlet magnetic conduction end cap 7 and the left magnetic conduction valve body 10, air gap between oil outlet magnetic conduction end cap 7 and the spool 11 constitutes working gas gap, and the outside of first ring shape permanent magnet 2, second ring shape permanent magnet 4 is coil rack 6 and drive coil 9; The cone valve type two-position three-way valve is made up of fairlead magnetic conduction end cap 15, oil outlet magnetic conduction end cap 7, left magnetic conduction valve body 10, right magnetic conduction valve body 12 and plug-in mounting valve body 8, left and right magnetic conduction valve body 10,12 links together by cross recessed countersunk head sscrew 21 and setting circle taper pin 20, and cone valve type spool 11 slides in the hole that left and right magnetic conduction valve body 10,12 constitutes; The lead of drawing of drive coil 9 passes aperture 19 on the left and right magnetic conduction valve body 10,12, draws the profiled holes 23 from fairlead magnetic conduction end cap 15; Be connected by screw thread with A, B, C mouth respectively into and out of oil pipe.
The present invention compared with prior art has following beneficial effect:
1, magnetic lock formula electromagnet, form by two annular permanent magnets, annular magnetizer, fairlead magnetic conduction end cap, oil outlet magnetic conduction end cap and coil, wherein the magnetizing direction of annular permanent magnet is axially, and wherein the N of two annular permanent magnets, S are combined into a magnetic lock formula electromagnet extremely relatively and with an annular magnetizer.Because electromagnet adopts the high saturated magnetically soft alloy of soft-magnetic stainless steel, and material has the specific resistance height, characteristics such as permeability height have reduced eddy current loss, have improved the speed of response of electromagnet, have reduced heating value simultaneously.
2, because magnetic lock formula electromagnet has adopted N, the S of two annular permanent magnets to be combined into a magnetic lock formula electromagnet extremely relatively and with an annular magnetizer, make when valve is in the open and close state, do not need the logical electric current that keeps in the coil, further reduced energy consumption, reduced the temperature rise of electromagnet.
3, adopt two magnetic lock formula electromagnet of said structure, symmetric arrangement to realize the motion of spool, compare, cancelled the Returnning spring of spool, thereby need not overcome spring force when opening (or closing), improved the speed of response of valve with the conventional switch valve; When remaining on out (or closing) position owing to spool simultaneously, need not overcome Returnning spring power and keep, the suction that only relies on permanent magnet to produce just can keep the invariant position of spool, so do not need that the maintenance electric current is arranged in the coil.
4, spool adopts two-bit triplet cone valve form, has guaranteed the zero leakage requirement of valve when closing, and can not influence the open and close speed of valve simultaneously again, can substitute the application of two-bit triplet guiding valve or ball valve.
Description of drawings
Fig. 1 is the local enlarged diagram of magnetic lock formula electromagnet of the present invention;
Fig. 2 is a switch valve principal section three-view diagram of the present invention;
Fig. 3 is a switch valve right elevation of the present invention;
Fig. 4 is a switch valve left view of the present invention;
Fig. 5 is the local enlarged diagram at valve port of the present invention place.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the present invention is a kind of switch valve, comprise electromagnet, control coil, cone valve type two-position three-way valve, magnetic lock formula electromagnet is installed in the left and right magnetic conduction valve body 10,12, second annular permanent magnnet 4, first annular magnetizer 3 and first annular permanent magnnet 2 in the magnetic lock formula electromagnet are superimposed together, be fixed between oil outlet magnetic conduction end cap 7 and the left magnetic conduction valve body 10, air gap between oil outlet magnetic conduction end cap 7 and the spool 11 constitutes working gas gap, and the outside of first ring shape permanent magnet 2, second ring shape permanent magnet 4 is coil rack 6 and drive coil 9; The cone valve type two-position three-way valve is made up of fairlead magnetic conduction end cap 15, oil outlet magnetic conduction end cap 7, left magnetic conduction valve body 10, right magnetic conduction valve body 12 and plug-in mounting valve body 8, left and right magnetic conduction valve body 10,12 links together by cross recessed countersunk head sscrew 21 and setting circle taper pin 20, and cone valve type spool 11 slides in the hole that left and right magnetic conduction valve body 10,12 constitutes; The lead of drawing of drive coil 9 passes aperture 19 on the left and right magnetic conduction valve body 10,12, draws the profiled holes 23 from fairlead magnetic conduction end cap 15; Be connected by screw thread with A, B, C mouth respectively into and out of oil pipe.
As shown in Figure 1, the magnetic direction that produces when the electric current in the drive coil is that spool 11 is subjected to suction, to left movement along axially to the right time of oil outlet magnetic conduction end cap 7; Otherwise the current reversal in the coil, the magnetic direction of generation are that spool 11 is subjected to thrust, moves right along axially left time of oil outlet magnetic conduction end cap 7; Be arranged symmetrically in the identical effect of magnetic lock formula high-speed double electromagnet of the spool the other end, so spool is realized to-and-fro motion, the open and close of realization valve port, control valve port flow under the effect of two magnetic lock formula electromagnet.
Be illustrated in figure 2 as switch valve section of structure of the present invention, comprise 2 magnetic lock formula electromagnet, plug-in mounting valve body 8, cone valve type spool 11 and left and right magnetic conduction valve bodies 10,12 with said structure, wherein magnetic conduction valve body in the left and right sides links together by cross recessed countersunk head sscrew 21 and setting circle taper pin 20, and cone valve type spool 11 slides in the hole that left and right magnetic conduction valve body 10,12 constitutes; The lead of drawing of drive coil 9 passes aperture 19 on the left and right magnetic conduction valve body 10,12, draws the profiled holes 23 from fairlead magnetic conduction end cap 15; Be connected by screw thread with A, B, C mouth respectively into and out of oil pipe, and have seal ring 5 to seal, prevent that fluid from leaking; Mutual sealing between A, B, the C mouth realizes by seal ring 1; When giving drive coil 9, right coil 13 electric current by equidirectional, the magnetic direction of generation is left the time, and spool 11 moves right, and makes the right valve port close, and left side valve port is opened, thereby makes B mouth and C mouth disconnect, A mouth and the connection of C mouth; Otherwise when drive coil 9, right coil 13 current reversals, the magnetic direction of generation is to the right the time, and spool 11 makes left side valve port close to left movement, and the right valve port is opened, thereby makes A mouth and C mouth disconnect, B mouth and the connection of C mouth; So repeatedly, then can control the flow that enters or flow out each valve port.
The working principle of magnetic lock formula high-speed switch valve of the present invention is as follows:
As shown in Figure 1, when giving drive coil 9, right coil 13 is by the impulsive current of equidirectional, the magnetic direction that produces is simultaneously left the time, the magnetic lock formula electromagnet on the left side promotes spool 11 and moves right, the magnetic lock formula electromagnet on the right also attracts spool 11 to move right simultaneously, make the right valve port close, left side valve port is opened, thereby make B mouth and C mouth disconnect, A mouth and C mouth are connected, when spool 11 arrives final position, the right, disconnect drive coil 9, right coil 13, the ring shape permanent magnet 16 in the spool 11 magnetic lock formulas on the right electromagnet, remain on right end position under 18 suctions that produce; Otherwise work as to drive coil 9,13 1 reverse impulse electric currents of right coil, the magnetic direction that produces is simultaneously to the right the time, the magnetic lock formula electromagnet on the left side attracts spool 11 to left movement, the magnetic lock formula electromagnet on the right also promotes spool 11 to left movement simultaneously, make left side valve port close, the right valve port is opened greatly, thereby makes A mouth and C mouth disconnect, and B mouth and C mouth are connected; So repeatedly, then can control the flow that enters or flow out each valve port.
The above; only be the embodiment of the best of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
In above-mentioned electromagnet, annular permanent magnet adopts high residual magnetic flux density magnetically hard alloy, is NdFe380/80.
In above-mentioned electromagnet, annular magnetizer, fairlead magnetic conduction end cap and oil outlet magnetic conduction end cap adopt the soft-magnetic stainless steel of high resistivity, high saturated magnetic induction, be Y1Cr17, the specific resistance height of magnet case, thereby can reduce the eddy current loss of electromagnet, reduce energy consumption, reduce the heating of electromagnet.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (2)
1. switch valve, comprise electromagnet, control coil, the cone valve type two-position three-way valve, it is characterized in that magnetic lock formula electromagnet is installed in a left side, right magnetic conduction valve body (10,12) in, second annular permanent magnnet (4) in the magnetic lock formula electromagnet, first annular magnetizer (3) and first annular permanent magnnet (2) are superimposed together, be fixed between oil outlet magnetic conduction end cap (7) and the left magnetic conduction valve body (10), air gap between oil outlet magnetic conduction end cap (7) and the spool (11) constitutes working gas gap, first ring shape permanent magnet (2), the outside of second ring shape permanent magnet (4) is coil rack (6) and drive coil (9); The cone valve type two-position three-way valve is made up of fairlead magnetic conduction end cap (15), oil outlet magnetic conduction end cap (7), left magnetic conduction valve body (10), right magnetic conduction valve body (12) and plug-in mounting valve body (8), left and right magnetic conduction valve body (10,12) links together by cross recessed countersunk head sscrew (21) and setting circle taper pin (20), and cone valve type spool (11) slides in the hole that left and right magnetic conduction valve body (10,12) constitutes; The lead of drawing of drive coil (9) passes aperture (19) on the left and right magnetic conduction valve body (10,12), draws the profiled holes (23) from fairlead magnetic conduction end cap (15); Be connected by screw thread with A, B, C mouth respectively into and out of oil pipe.
2. switch valve according to claim 1, the magnetizing direction that it is characterized in that the annular permanent magnet in the magnetic lock formula electromagnet is for axial, wherein N, the S of two annular permanent magnets (2,4) are combined into a magnetic lock formula electromagnet extremely relatively and with first annular magnetizer (3), and two magnetic lock formula electromagnet are symmetrically distributed in the two ends of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101174635A CN101696740B (en) | 2009-09-14 | 2009-09-14 | Switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101174635A CN101696740B (en) | 2009-09-14 | 2009-09-14 | Switch valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101696740A CN101696740A (en) | 2010-04-21 |
| CN101696740B true CN101696740B (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101174635A Expired - Fee Related CN101696740B (en) | 2009-09-14 | 2009-09-14 | Switch valve |
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| CN (1) | CN101696740B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720714B (en) * | 2012-05-31 | 2014-09-03 | 绍兴文理学院 | Method for correcting chucking faults of electrohydraulic proportioning valve by utilizing electromagnetic force |
| CN105508660B (en) * | 2015-12-24 | 2017-10-03 | 重庆安来动力机械有限公司 | Oil-gas two-way is switched |
| CN105822817B (en) * | 2016-03-18 | 2018-11-13 | 南京伶机宜动驱动技术有限公司 | Runner controlling valve |
| CN107061796B (en) * | 2017-05-19 | 2023-01-10 | 浙江工业大学 | Rotary gear shifting type multi-oil-way hydraulic control switch |
| CN109780265B (en) * | 2019-02-28 | 2023-09-26 | 浙江高翔工贸有限公司 | Electric control switch valve for on-off of pipeline |
| CN113483142B (en) * | 2021-09-07 | 2021-11-16 | 余姚市三力信电磁阀有限公司 | Coaxial electromagnetic valve for deep sea and use method |
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2009
- 2009-09-14 CN CN2009101174635A patent/CN101696740B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101696740A (en) | 2010-04-21 |
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