CN104358914A - Novel proportional valve - Google Patents
Novel proportional valve Download PDFInfo
- Publication number
- CN104358914A CN104358914A CN201410546322.6A CN201410546322A CN104358914A CN 104358914 A CN104358914 A CN 104358914A CN 201410546322 A CN201410546322 A CN 201410546322A CN 104358914 A CN104358914 A CN 104358914A
- Authority
- CN
- China
- Prior art keywords
- valve
- flux sleeve
- valve core
- new type
- cone
- 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.)
- Pending
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Classifications
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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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a novel proportional valve. The proportional valve comprises a flux sleeve, wherein a coil is wound on the periphery surface of the flux sleeve, a cone valve is arranged at the front end of the flux sleeve, and a fixed blocking iron and a movable moving iron are successively arranged in the inner holes of the flux sleeve and on the rear side of the cone valve; a push rod is arranged in the blocking iron in a sliding manner, and when the coil is electrified, the push rod is pushed by the moving iron to generate driving force and drive the cone valve; the driving force is progressively reduced along with the increase of the displacement of the push rod, and the valve port pressure of the cone valve is proportionally regulated through changing the size of the electrified electric current of the coil. The proportional valve disclosed by the invention adopts an electromagnet without a cup structure, a magnetism separating ring is also not required, the cone valve is adopted, and the force which is generated by the steady flow force for a valve core is compensated through a displacement curve of the force of the electromagnet to realize the balanced resultant force for the valve core, so that the situation that the resultant force for the valve core under certain electric current is constant is realized without the influence of the displacement of the valve core.
Description
Technical field
The present invention relates to valve, particularly relate to Proportional valve.
Background technique
Current Proportional valve mostly is proportion electro-magnet as guide and main valve proportion of composing valve, concentrating flux sleeve in passing ratio electromagnet increases magnetism resistent ring or the design of basin mouth, magnetic circuit is divided into two magnetic loops, one tunnel is through electromagnet axial direction, form servo-actuated iron displacement increase and magnetic resistance to increase, and electromagnetic force is diminished with displacement gradually diminish; Another road is cut sth. askew and the loop in dynamic cylindrical iron face, forms the servo-actuated iron displacement of magnetic resistance and increases and reduce, and makes electromagnetic force become large with displacement gradually to become large; Vector superposed by two magnetic loops, electromagnet ouput force is not changed with displacement.Make Proportional valve operationally, spool adjustment displacement time institute is stressed unaffected.But proportion electro-magnet can be subject to the impact of liquid hydraulic power and produce control accuracy difference, the decomposition of two-way magnetic circuit simultaneously can cause more magnetic circuit to lose, and power consumpiton is large.
Summary of the invention
Technical problem to be solved by this invention is just to provide a kind of New Type Proportional valve, and displacement, the velocity control accuracy of spool adjustment are higher, realize the proportional control of high pressure and large discharge.
For solving the problems of the technologies described above, the present invention adopts following technological scheme: a kind of New Type Proportional valve, comprise concentrating flux sleeve, the outer circumferential face of described concentrating flux sleeve is wound with coil, described concentrating flux sleeve front end is provided with cone valve, the endoporus of described concentrating flux sleeve is provided with fixing buting iron and movable dynamic iron successively on rear side of cone valve, slide in described buting iron and a push rod is set, when coil electricity, dynamic iron promotes push rod and produces driving force and drive cone valve, this driving force is successively decreased along with the displacement increase of push rod, and by changing the valve port pressure of the pro rata adjustment cone valve of coil electricity size of current.
Preferably, described cone valve comprises valve pocket, is provided with the poppet valve core cooperatively interacted and conical valve base in described valve pocket.
Preferably, described poppet valve core comprises the tapered portion of head and the stock portion at rear portion, is provided with slide valve buckle between described stock portion and valve pocket.
Preferably, described poppet valve core center is provided with the axial blind hole that head opening and afterbody are closed, and described poppet valve core afterbody is provided with the radial blind holes be communicated with axial blind hole.
Preferably, described poppet valve core outer peripheral surface is distributed with 3 ~ 8 balancing slits vertically.
Preferably, the frustoconical bevel angle of described poppet valve core tapered portion is 70 ~ 110 °.
Preferably, described concentrating flux sleeve comprises magnetic conductive cylinder, and before described magnetic conductive cylinder front end and tail end are separately installed with, strategic point and tail strategic point, described tail strategic point is provided with emergency button, is provided with spring between described tail strategic point and dynamic iron afterbody.
Preferably, strategic point before described, tail is in distress is welded as a whole by argon arc welding with magnetic conductive cylinder.
The present invention adopts the electromagnet without basin mouth structure, do not need to increase magnetism resistent ring yet, and adopt cone valve, the power produced because of the steady-state fluid force suffered by spool is compensated by the ferreous displacement diagram of electromagnetism, realize spool and be subject to balance of making a concerted effort, thus it is suffered constant with joint efforts under certain electric current to realize spool, and have nothing to do with spool travel.Magnetic circuit loss is little, and thrust is large; Do not need brazing to connect magnetism resistent ring, thus working pressure is higher.
Therefore, the useful technique effect that the present invention has is:
1, structure is simple; 2, not by the impact of hydraulic power, the linearity is good; 3, response is faster, good stability; 4, specific power is large; 5, withstand voltage height.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
Fig. 1 is Proportional valve sectional drawing of the present invention;
Fig. 2 is cone valve structure schematic diagram in the present invention;
Fig. 3 is concentrating flux sleeve structural representation in the present invention.
Embodiment
Embodiments of the invention are illustrated below in conjunction with Fig. 1 to Fig. 3.
As shown in Figure 1, Proportional valve of the present invention comprises locking nut 1, dynamic iron 2, coil 3, push rod 5, buting iron 4, concentrating flux sleeve 6, valve pocket 7, poppet valve core 8, conical valve base 9, slide valve buckle 10.
Wherein locking nut 1, dynamic iron 2, coil 3, push rod 5, buting iron 4, concentrating flux sleeve 6 forms an electromagnet, and solenoid actuated power reduces, as the pilot section of hydrovalve along with the displacement increase of dynamic iron.
Coil winding, on the outer circumferential face of concentrating flux sleeve, is provided with cone valve in concentrating flux sleeve front end, and the endoporus of concentrating flux sleeve is provided with fixing buting iron and movable dynamic iron successively on rear side of cone valve, and sliding in buting iron arranges a push rod.
During coil electricity in electromagnet, dynamic iron promotes push rod and produces driving force and also drive cone valve, and this driving force increases along with the displacement of push rod and successively decreases, and by changing the valve port pressure of the pro rata adjustment cone valve of coil electricity size of current.
And as shown in Figure 2, described cone valve comprises valve pocket 7, the poppet valve core 8 and conical valve base 9 that cooperatively interact is provided with in described valve pocket, primary valve part is formed in addition together with slide valve buckle 10, poppet valve core 8 and conical valve base 9 form cone valve structure, spool travel can change flow area, thus changes liquid resistance, control system pressure.
Poppet valve core comprises the tapered portion of head and the stock portion at rear portion, is provided with slide valve buckle 10 between described stock portion and valve pocket.Described poppet valve core center is provided with the axial blind hole that head opening and afterbody are closed, and described poppet valve core afterbody is provided with the radial blind holes be communicated with axial blind hole.The conical surface shape of tapered portion, large angle makes same displacement flow large, and the longitudinal blind hole in center and afterbody radial blind holes UNICOM, form difference structure, makes little electromagnetic force control larger pressure.
Described poppet valve core 8 and conical valve base 9 form the sealing coupling part of cone valve form, distinguish hyperbaric chamber and low-pressure cavity.Described poppet valve core 8 front end frustoconical bevel angle is 70 ~ 110 °, make when same displacement, make the flow that passes through larger, suffered by poppet valve core, hydraulic power direction is all the direction closed towards poppet valve core forever, and hydraulic power size is directly proportional to flow and efflux angle, thus suffered by poppet valve core 8, hydraulic power is larger.
Because the flow of valve port increases with the displacement increase of poppet valve core, this just makes the hydraulic power suffered by poppet valve core to increase along with spool travel and to increase progressively.Cause electromagnetic force and hydraulic power to stack up power constant with change in displacement for formation one, thus form proportionality, can the regulating valve mouth pressure of ratio by the size of current changing electromagnet.
Poppet valve core 8 and slide valve buckle 10 form differential form, and active area is the difference that area A deducts area B, and this makes same electromagnetic force can resist larger hydraulic coupling, makes pilot pressure higher.
And be distributed with 3 ~ 8 balancing slits vertically at the outer peripheral surface of poppet valve core 8.Greatly can reduce poppet valve core 8 and slide valve buckle 10 hydraulic card clamping force between the two, increase the flexibility of poppet valve core.
As shown in Figure 3, described concentrating flux sleeve 6 is made up of emergency button 11, tail strategic point 12, magnetic conductive cylinder 13, front in distress 14, before described magnetic conductive cylinder front end and tail end are separately installed with, strategic point and tail strategic point, described tail strategic point is provided with emergency button, is provided with spring between described tail strategic point and dynamic iron valve afterbody.Strategic point before described, tail is in distress is welded as a whole by argon arc welding with magnetic conductive cylinder, and intensity is high.In concentrating flux sleeve structure, owing to there is not the structures such as basin mouth and magnetism resistent ring, magnetic circuit is lost little, the ouput force that same power input produces will increase; And concentrating flux sleeve does not need the welding manners such as brazing, withstand voltage higher.
This Proportional valve is mainly used in the occasion higher to displacement, speed or direction controlling required precision.And adopt opened loop control just can control rate, displacement and direction more accurately in system.To the occasion of tight space, the proportional control of high pressure and large discharge can be realized.
Claims (8)
1. a New Type Proportional valve, it is characterized in that: comprise concentrating flux sleeve, the outer circumferential face of described concentrating flux sleeve is wound with coil, described concentrating flux sleeve front end is provided with cone valve, the endoporus of described concentrating flux sleeve is provided with fixing buting iron and movable dynamic iron successively on rear side of cone valve, slide in described buting iron and a push rod is set, when coil electricity, dynamic iron promotes push rod and produces driving force and drive cone valve, this driving force is successively decreased along with the displacement increase of push rod, and by changing the valve port pressure of the pro rata adjustment cone valve of coil electricity size of current.
2. a kind of New Type Proportional valve according to claim 1, is characterized in that: described cone valve comprises valve pocket, is provided with the poppet valve core cooperatively interacted and conical valve base in described valve pocket.
3. a kind of New Type Proportional valve according to claim 2, is characterized in that: described poppet valve core comprises the tapered portion of head and the stock portion at rear portion, is provided with slide valve buckle between described stock portion and valve pocket.
4. a kind of New Type Proportional valve according to claim 3, is characterized in that: described poppet valve core center is provided with the axial blind hole that head opening and afterbody are closed, and described poppet valve core afterbody is provided with the radial blind holes be communicated with axial blind hole.
5. a kind of New Type Proportional valve according to claim 4, is characterized in that: described poppet valve core outer peripheral surface is distributed with 3 ~ 8 balancing slits vertically.
6. a kind of New Type Proportional valve according to claim 5, is characterized in that: the frustoconical bevel angle of described poppet valve core tapered portion is 70 ~ 110 °.
7. a kind of New Type Proportional valve according to claim 1 to 6 any one, it is characterized in that: described concentrating flux sleeve comprises magnetic conductive cylinder, before described magnetic conductive cylinder front end and tail end are separately installed with, strategic point and tail strategic point, described tail strategic point is provided with emergency button, is provided with spring between described tail strategic point and dynamic iron afterbody.
8. a kind of New Type Proportional valve according to claim 7, is characterized in that: strategic point before described, tail is in distress is welded as a whole by argon arc welding with magnetic conductive cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546322.6A CN104358914A (en) | 2014-10-15 | 2014-10-15 | Novel proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546322.6A CN104358914A (en) | 2014-10-15 | 2014-10-15 | Novel proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104358914A true CN104358914A (en) | 2015-02-18 |
Family
ID=52526205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410546322.6A Pending CN104358914A (en) | 2014-10-15 | 2014-10-15 | Novel proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104358914A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122151A (en) * | 2016-08-31 | 2016-11-16 | 宁波海宏液压有限公司 | Insert high-flow threeway proportional pressure-reducing valve |
| CN111306333A (en) * | 2020-03-01 | 2020-06-19 | 东莞海特帕沃液压科技有限公司 | Safety valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1235014A2 (en) * | 2001-02-26 | 2002-08-28 | Delphi Technologies, Inc. | Solenoid valve |
| CN1602398A (en) * | 2001-12-11 | 2005-03-30 | 萱场工业株式会社 | Solenoid-operated proportional flow control valve |
| CN201513269U (en) * | 2009-10-13 | 2010-06-23 | 北京理工大学 | Electromagnetic control valve |
| CN103062423A (en) * | 2012-12-31 | 2013-04-24 | 浙江中控流体技术有限公司 | Valve core and valve seat throttling sealing device |
| CN103502697A (en) * | 2011-05-11 | 2014-01-08 | 优尼克株式会社 | Pressure control valve |
-
2014
- 2014-10-15 CN CN201410546322.6A patent/CN104358914A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1235014A2 (en) * | 2001-02-26 | 2002-08-28 | Delphi Technologies, Inc. | Solenoid valve |
| CN1602398A (en) * | 2001-12-11 | 2005-03-30 | 萱场工业株式会社 | Solenoid-operated proportional flow control valve |
| CN201513269U (en) * | 2009-10-13 | 2010-06-23 | 北京理工大学 | Electromagnetic control valve |
| CN103502697A (en) * | 2011-05-11 | 2014-01-08 | 优尼克株式会社 | Pressure control valve |
| CN103062423A (en) * | 2012-12-31 | 2013-04-24 | 浙江中控流体技术有限公司 | Valve core and valve seat throttling sealing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122151A (en) * | 2016-08-31 | 2016-11-16 | 宁波海宏液压有限公司 | Insert high-flow threeway proportional pressure-reducing valve |
| CN111306333A (en) * | 2020-03-01 | 2020-06-19 | 东莞海特帕沃液压科技有限公司 | Safety valve |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 311835, Shaoxing Town, Zhuji, Zhejiang, Jiefang Road No. 689 Applicant after: ZHEJIANG HUAYI PRECISION MACHINERY CO., LTD. Address before: 311835, Shaoxing Town, Zhuji, Zhejiang, Jiefang Road No. 689 Applicant before: Zhejiang Huayi Machinery Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZHEJIANG HUAYI MACHINERY CO., LTD. TO: ZHEJIANG HUAYI PRECISION MACHINERY CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |