CN102269274A - Proportional valve - Google Patents
Proportional valve Download PDFInfo
- Publication number
- CN102269274A CN102269274A CN201010619974XA CN201010619974A CN102269274A CN 102269274 A CN102269274 A CN 102269274A CN 201010619974X A CN201010619974X A CN 201010619974XA CN 201010619974 A CN201010619974 A CN 201010619974A CN 102269274 A CN102269274 A CN 102269274A
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- valve body
- awl core
- proportional valve
- core
- conical surface
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Abstract
The invention provides a proportional valve. The proportional valve comprises a valve body (1) and a valve core (2) arranged in a cavity (12) of the valve body (1), wherein the valve core (2) is in conical fit with the valve body (1). The proportional valve has the advantages of flexible mechanism, stable accuracy, high controllability and the like, is light and durable, and can realize accurate control and self centering.
Description
Technical field
The present invention relates to the flow control field, in particular to a kind of Proportional valve.
Background technique
In current engineering is used, the most complex structures of Proportional valve actuator, stability is low, the antijamming capability deficiency, prior also have workability low, and some can only rest on the conceptual design, is difficult to realize.
Summary of the invention
The present invention aims to provide a kind of Proportional valve, have mechanism flexibly, stable accuracy, controllability height, advantage such as light and handy durable, can realize accurately control and self contering.
To achieve these goals, the invention provides a kind of Proportional valve, comprise valve body and the interior spool of the cavity that is arranged on valve body, is cone match between spool and the valve body.
Further, spool comprises awl core with conical surface and fixedlys connected with the awl core and be slidably disposed on slide bar in the valve body.
Further, the external part of slide bar and cooperation place, valve body upper end portion are provided with seal ring, are outside equipped with the gland of fixedlying connected with valve body at seal ring.
Further, between slide bar and the valve body be Spielpassung.
Further, be provided with the hush panel of fixedlying connected with valve body at the lower opening of cavity, hush panel is provided with first gas port.
Further, the awl core is a magnetic awl core, and hush panel is provided with the magnetic sheet identical with boring the core magnetic pole, and magnetic sheet is provided with first gas port.
Further, magnetic sheet embeds in the hush panel.
Further, the awl core is a magnetic awl core, is embedded in and the opposite embedded piece of awl core magnetic pole at the valve body of the conical surface upside of awl core, and embedded piece has the inner chamber that matches with the conical surface of boring core.
Further, have outside thread in the underpart of slide bar, the awl core has internal thread, is fixedly installed on the outside thread.
According to technological scheme of the present invention, be cone match between spool and the valve body, have characteristics simple in structure, that mechanism is flexible, controllability is higher, help boring core and produce the self contering effect, make control procedure stable, antijamming capability is strong, and gas flow control is more accurate.Select for use seal ring to seal, realized better seal.The utilization in magnetic field make it when displacement is reverse without the loss outside energy, awl core self just can be realized.So just make in the whole cycle of control to have only the preceding halftime to need extraneous extra acting, saved using energy source.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation according to the Proportional valve of the first embodiment of the present invention;
Fig. 2 is that A-A according to Fig. 1 is to the sectional structure schematic representation;
Fig. 3 shows the side direction structural representation according to the Proportional valve of the first embodiment of the present invention;
Fig. 4 shows the Proportional valve perspective view according to the first embodiment of the present invention; And
Fig. 5 shows Proportional valve sectional structure schematic representation according to a second embodiment of the present invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
As depicted in figs. 1 and 2, according to the first embodiment of the present invention, Proportional valve comprises valve body 1 and is arranged on spool 2 in the cavity 12 of valve body 1, is cone match between spool 2 and the valve body 1.Spool 2 comprises awl core 22 with conical surface and fixedlys connected with awl core 22 and be slidably disposed on slide bar 21 in the valve body 1.The external part of slide bar 21 and cooperation place, valve body 1 upper end portion are provided with seal ring 6, be outside equipped with the gland 5 of fixedlying connected with valve body 1 at seal ring 6, gland 5 is pressed on the upper end of valve body 1 and the cooperation place of slide bar 1 with seal ring 6, makes whole valve body keep good air-tightness.Be Spielpassung between slide bar 21 and the valve body 1, spool 2 is by in the unsettled cavity that is arranged on valve body 1 of seal ring 6.Lower opening at cavity 12 is provided with the hush panel 3 of fixedlying connected with valve body 1, and hush panel 3 is provided with first gas port 31.Wherein boring core 22 is magnetic awl core, and hush panel 3 is provided with the magnetic sheet 4 identical with boring core 22 magnetic poles, and magnetic sheet 4 is provided with first gas port, makes the gas that enters from first gas port 31 of valve body 1 pass through spool, flows out from second gas port 11 then.The underpart of slide bar 21 has outside thread, and awl core 22 has internal thread, is fixedly installed on the outside thread of slide bar 21.Preferably, the openings of sizes of first gas port 31 on first gas port on the magnetic sheet 4 and the hush panel 3 is identical.Wherein the direction of arrow is represented gas flow direction.
As shown in Figure 3 and Figure 4, after gas enters from first gas port 31 of hush panel 3, first gas port by magnetic sheet 4 enters in the cavity 12 of valve body, space between the conical surface of awl core 22 from the big end of cone-shaped cavity along spool 2 and cavity enters into the small end of awl core 22 then, space from awl core 22 small ends enters second gas port 11 then, and from second gas port 11, flow out, Electromagnetic Control can be passed through in the conical surface gap of wherein boring between core 22 and the cavity 12, so that realize the accuracy controlling of opening degree, guarantee that Proportional valve has good proportion flow control ability.
After gas flows into the small end space of awl core 22 from conical surface gap, owing to the flow velocity reason can produce certain negative pressure near conical surface small end, be positioned at magnetic sheet 4 on the hush panel 3 simultaneously because identical with the magnetic pole of awl core 22, can give the awl core 22 1 reverse the action of a magnetic field power, this the action of a magnetic field power is evenly distributed on the lower end surface of awl core 22, under the effect of air-negative-pressure and uniform magnetic field repulsion, because between awl core 22 and the cavity 12 is cone match, make awl core 22 can realize the self-alignment function in local and the certain limit, can carry out automatic adjustment to a certain extent, the direction that guarantees it is identical with direction of displacement, thereby guarantee that conical surface gap evenly distributes, gas by the gap evenly flows, and makes Proportional valve have stable gas flow structure, can guarantee the accurate control of Proportional valve.
Because slide bar 21 is by in the unsettled cavity 12 that is arranged on valve body 1 of a seal ring 5, and seal ring 5 is rubber-likes, therefore to a certain extent, makes spool 2 have bigger self-regulation ability, flexibility is higher.
When gas circuit did not have flow, spool 2 returned limit cooperation position under the effect of magnet repulsion, and promptly conical surface zero clearance is realized the self-enclosed function of gas circuit, and be need not to make it reach closed state by external force, had avoided outside extra acting.Because the elastic reaction of seal ring 5, to realize fitting preferably between the awl core 22 that can make spool 2 and the cavity 12 of valve body 1, assurance Proportional valve airless is by the sealability under the situation.
In addition, in working order down when airflow passes conical surface gap, owing to the reason of flow velocity can produce certain negative pressure near conical surface small end.When flow surpassed some values, Proportional valve cone match gap is reduced awl core 22 or until closing, this also is a kind of self-enclosed phenomenon.
Adopt between hush panel 3 in the present embodiment and the valve body 1 to be threaded, guaranteed the tightness that connects and the soundness of structure, hush panel 3 and Proportional valve valve body 1 are combined into one.Gland 5 is connected on the valve body 1 by bolt, and compresses seal ring 5, guarantees good sealing function.In order to guarantee the position of magnetic sheet 4 on hush panel 3, hush panel 3 is provided with groove, and magnetic sheet 4 is embedded in the groove of hush panel 3, thereby forms good location.
As shown in Figure 5, according to a second embodiment of the present invention, the difference of the Proportional valve structure among the structure of Proportional valve and first embodiment is, in the present embodiment, gas first gas port is first gas port 11, gas second gas port is second gas port 31, with among first embodiment to advance the second gas port direction opposite.In the present embodiment, magnetic sheet 4 is set no longer on the hush panel 3, but is embedded in and the opposite embedded piece 7 of awl core 22 magnetic poles at the valve body 1 of the conical surface upside of boring core 22, embedded piece 7 has the inner chamber that matches with the conical surface of awl core 22.
When in running order, gas enters the small end part of conical surface from first gas port 11, and by Electromagnetic Control cone governor core 22, make and form conical surface space between awl core 22 and the cavity 12, gas enters the big end spaces of awl core 22 bottoms from conical surface space, and from second gas port 31, flow out, the control of gas flow can be regulated by electromagnetism, can guarantee accurate ratio flow control.In the gas flow process, under the effect of stream pressure and uniform magnetic field suction, because between awl core 22 and the cavity 12 is cone match, make awl core 22 can realize the self-alignment function in local and the certain limit, can carry out automatic adjustment to a certain extent, guarantee that its direction is identical with direction of displacement, thereby guarantee that conical surface gap evenly distributes, gas by the gap evenly flows, and makes Proportional valve have stable gas flow structure, can guarantee the accurate control of Proportional valve.
When gas circuit did not have flow, under the suction of the embedded piece 7 that is positioned at awl core 22 upper ends, awl core 22 moved upward, and fitted with the space of cavity 12 and embedded piece 7, thereby formed conical surface zero clearance, realized the self-enclosed function of Proportional valve gas circuit.In the movement process of awl core 22,, can realize good close encapsulation function because the cooperating structure of the conical surface makes awl core 22 have the self-aligning function.
Because the application in magnetic field makes that spool and valve body are contactless in the course of the work, do not have wearing and tearing, has advantages of higher stability.
Need to prove that under specific scheme, gas circuit can only one-way flow, has not oppositely just had this characteristic; In like manner suction or repulsion also will be selected according to actual needs in magnetic field.
From above description, as can be seen, the above embodiments of the present invention have realized following technique effect: according to technological scheme of the present invention, it between spool and the valve body cone match, have characteristics simple in structure, that mechanism is flexible, controllability is higher, help boring core and produce the self contering effect, make control procedure stable, antijamming capability is strong, and gas flow control is more accurate.Select for use seal ring to seal, realized better seal.The utilization in magnetic field make it when displacement is reverse without the loss outside energy, awl core self just can be realized.So just make in the whole cycle of control to have only the preceding halftime to need extraneous extra acting, saved using energy source.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. Proportional valve comprises valve body (1) and is arranged on spool (2) in the cavity (12) of valve body (1), it is characterized in that, and be cone match between described spool (2) and the described valve body (1).
2. Proportional valve according to claim 1 is characterized in that, described spool (2) comprises awl core (22) with conical surface and fixedlys connected with described awl core (22) and be slidably disposed on slide bar (21) in the described valve body (1).
3. Proportional valve according to claim 2, it is characterized in that, the external part of described slide bar (21) and described valve body (1) cooperation place, upper end portion are provided with seal ring (6), are outside equipped with the gland (5) of fixedlying connected with described valve body (1) at described seal ring (6).
4. Proportional valve according to claim 3 is characterized in that, is Spielpassung between described slide bar (21) and the described valve body (1).
5. Proportional valve according to claim 2 is characterized in that, is provided with the hush panel (3) of fixedlying connected with described valve body (1) at the lower opening of described cavity (12), and described hush panel (3) is provided with first gas port (31).
6. Proportional valve according to claim 5 is characterized in that, described awl core (22) is magnetic awl core, and described hush panel (3) is provided with the magnetic sheet (4) identical with described awl core (22) magnetic pole, and described magnetic sheet (4) is provided with first gas port.
7. Proportional valve according to claim 6 is characterized in that, described magnetic sheet (4) embeds in the described hush panel (3).
8. Proportional valve according to claim 5, it is characterized in that, described awl core (22) is magnetic awl core, described valve body (1) at the conical surface upside of described awl core (22) is embedded in the embedded piece (7) opposite with described awl core (22) magnetic pole, and described embedded piece (7) has the inner chamber that matches with the conical surface of described awl core (22).
9. according to each described Proportional valve in the claim 2 to 8, it is characterized in that have outside thread in the underpart of described slide bar (21), described awl core (22) has internal thread, is fixedly installed on the described outside thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010619974XA CN102269274A (en) | 2010-12-31 | 2010-12-31 | Proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010619974XA CN102269274A (en) | 2010-12-31 | 2010-12-31 | Proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102269274A true CN102269274A (en) | 2011-12-07 |
Family
ID=45051657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010619974XA Pending CN102269274A (en) | 2010-12-31 | 2010-12-31 | Proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648937A (en) * | 2019-10-13 | 2021-04-13 | 中北大学 | Hole detection device with anti-rotation mechanism and detection method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3244574C1 (en) * | 1982-12-02 | 1984-03-22 | Gottlieb Weinmann Geräte für Medizin und Arbeitsschutz GmbH + Co, 2000 Hamburg | Pressure control valve of a device for artificial ventilation |
| US4976404A (en) * | 1987-07-30 | 1990-12-11 | Fuji Photo Film Co., Ltd. | Flow control valve |
| CN201031956Y (en) * | 2007-06-06 | 2008-03-05 | 周翔 | Long opening type two-pass flow control valve |
| CN101229411A (en) * | 2006-12-25 | 2008-07-30 | 北京谊安医疗***股份有限公司 | Safety valve |
| CN101701630A (en) * | 2009-11-26 | 2010-05-05 | 中国电子科技集团公司第四十五研究所 | Liquid flow proportion regulating valve |
-
2010
- 2010-12-31 CN CN201010619974XA patent/CN102269274A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3244574C1 (en) * | 1982-12-02 | 1984-03-22 | Gottlieb Weinmann Geräte für Medizin und Arbeitsschutz GmbH + Co, 2000 Hamburg | Pressure control valve of a device for artificial ventilation |
| US4976404A (en) * | 1987-07-30 | 1990-12-11 | Fuji Photo Film Co., Ltd. | Flow control valve |
| CN101229411A (en) * | 2006-12-25 | 2008-07-30 | 北京谊安医疗***股份有限公司 | Safety valve |
| CN201031956Y (en) * | 2007-06-06 | 2008-03-05 | 周翔 | Long opening type two-pass flow control valve |
| CN101701630A (en) * | 2009-11-26 | 2010-05-05 | 中国电子科技集团公司第四十五研究所 | Liquid flow proportion regulating valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648937A (en) * | 2019-10-13 | 2021-04-13 | 中北大学 | Hole detection device with anti-rotation mechanism and detection method |
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Application publication date: 20111207 |