CN101476573B - Integrated electrohydraulic proportional control valves - Google Patents
Integrated electrohydraulic proportional control valves Download PDFInfo
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- CN101476573B CN101476573B CN200910103008XA CN200910103008A CN101476573B CN 101476573 B CN101476573 B CN 101476573B CN 200910103008X A CN200910103008X A CN 200910103008XA CN 200910103008 A CN200910103008 A CN 200910103008A CN 101476573 B CN101476573 B CN 101476573B
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Abstract
The invention relates to an integrated electro-hydraulic proportional control valve. A valve body is provided with three valve cavities, wherein the liquid inlet end of the first valve cavity is communicated with a liquid inlet through a first passage, the liquid outlet end of the first valve cavity is communicated with a first liquid outlet through a second passage, and a safety valve is arranged in the first valve cavity; a control valve and an electromagnetic valve are arranged in the second valve cavity, an inlet of the control valve is communicated with an liquid inlet through a third passage, and an outlet of the control valve is communicated with the second valve cavity; the valve body is also provided with a fourth passage of which the inlet end is communicated with the second valve cavity and the outlet end is divided into two paths, one path is communicated with a second liquid outlet, while the other path is communicated with the liquid inlet end of the third valve cavity; and the liquid outlet end of the third valve cavity is communicated with the first liquid outlet, and a one-way valve is arranged in the third valve cavity. The integrated electro-hydraulic proportional control valve adopts current to adjust the control so as to achieve automatic control conveniently; and compared with the split structures of the prior proportional valve and a pressure valve, the integrated electro-hydraulic proportional control valve is integrated into an integral structure of an electro-hydraulic proportional valve, has a more compact structure, and greatly reduces the volume.
Description
Technical field
The invention belongs to the control valve technical field, specifically, relate in particular to a kind of integrated electrohydraulic proportional control valves.
Background technique
Control valve is widely used in the various hydraulic systems, and traditional control valve such as safety valve, one-way valve etc. are function singleness not only, and has the following disadvantages on control mode:
1, control adopts mechanical type manual to regulate, and is very inconvenient, can not realize automatic control.
Even 2 adopt the electronically controlled proportional valve structure, but because function singleness causes whole device structure not compact, volume is bigger.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of can realize the integrated electrohydraulic proportional control valves of control automatically.
Technological scheme of the present invention is as follows: a kind of integrated electrohydraulic proportional control valves, on valve body, be provided with valve pocket, the surface of valve body offers liquid entering hole and liquid outlet, its key is: described valve body is provided with three valve pockets, wherein the liquid feeding end of first valve pocket communicates with liquid entering hole by first passage, the outlet end of first valve pocket communicates with first liquid outlet by second channel, and in first valve pocket safety valve is housed, and the liquid that this safety valve is controlled in first valve pocket flows to outlet end from liquid feeding end; Installation and control valve and solenoid valve in described second valve pocket, wherein the import of control valve communicates with liquid entering hole by third channel, and the outlet of control valve communicates with second valve pocket, and by electromagnetic valve; On described valve body, also offer four-way, the entrance point of this four-way communicates with second valve pocket, the outlet end of four-way is divided into two-way, one the tunnel communicates with second liquid outlet, the liquid feeding end of another Lu Yudi three valve pockets is communicated with, the outlet end of described the 3rd valve pocket communicates with first liquid outlet, and in the 3rd valve pocket one-way valve is housed, this one-way valve control liquid in the 3rd valve pocket from liquid feeding end to the outlet end one-way flow.
The present invention is integrated in safety valve, control valve, solenoid valve and one-way valve on the same valve body, have one tunnel input, three tunnel outputs, and the height of outlet pressure can be controlled automatically by the power of input electrical signal.When the hydraulic system outlet pressure was higher than the setting pressure of safety valve, safety valve was just opened, and entered the fluid of first valve pocket from valve body liquid entering hole, first passage, behind safety valve and second channel, flowed out from first liquid outlet, played the unloading pressure protection effect.In the time of within the hydraulic system outlet pressure is in proper functioning setting pressure scope, safety valve cuts out, solenoid valve is by the big or small recloser of control electric current, when the hydraulic system outlet pressure is higher than the solenoid valve setting pressure, flow into the fluid of second valve pocket from valve body liquid entering hole, third channel and control valve, divide two-way outwards to flow out by four-way, wherein one the road flows out from second liquid outlet, as control oil channel such as flow, the effect of regulating flow is played in the control executing mechanism action; Another road enters in the 3rd valve pocket, flows out from first liquid outlet by one-way valve again, plays the effect of regulating pressure.
For simplified structure, convenient processing, above-mentioned first valve pocket, second valve pocket and the 3rd valve pocket are the clear opening structure, and the three is parallel to each other, and connects the upper and lower end face to valve body respectively.
The upper end of above-mentioned first valve pocket is a thread section, so that pack screw into, prevents the upper end leakage of oil of first valve pocket; Safety valve inserts from the bottom of first valve pocket from lower to upper, can conveniently install and regulate, and can prevent the lower end leakage of oil of first valve pocket again.
The upper end of above-mentioned the 3rd valve pocket is a thread section, so that pack screw into, prevents the upper end leakage of oil of the 3rd valve pocket; One-way valve inserts from the bottom of the 3rd valve pocket from lower to upper, plays convenient the installation and adjusting on the one hand, on the other hand, can prevent the lower end leakage of oil of the 3rd valve pocket again.
Above-mentioned safety valve, solenoid valve and one-way valve are needle-valve, and described control valve inserts from the top of second valve pocket from top to bottom, and solenoid valve inserts from the bottom of second valve pocket from lower to upper, and the syringe needle of solenoid valve stretches in the outlet of control valve.Safety valve, control valve, solenoid valve and one-way valve all adopt matured product on sale on the market, help Installation and Debugging, and precise control, reliable.
The invention has the beneficial effects as follows:
1, adopts electric current to regulate to control, can conveniently realize automatic control.
2, with respect to the branch body structure of traditional Proportional valve and pressure valve, the present invention is integrated into an electro-hydraulic proportional valve monolithic construction, more compact structure, and volume reduces greatly.
3, reasonable in design, implement easily, precise control is reliable, and very application prospects is arranged in hydraulic system.
Description of drawings
Fig. 1 is a plan view of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
Fig. 4 is a fundamental diagram of the present invention.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, valve body 1 is a rectangular configuration, offer liquid entering hole P1, the first liquid outlet P2 and the second liquid outlet P3 on the surface of valve body 1, liquid entering hole P1 wherein, the particular location of first, second liquid outlet P2, P3 can be determined according to actual needs, in the present embodiment, liquid entering hole P1 is positioned at the right side of valve body 1, and the first liquid outlet P2 and the second liquid outlet P3 are positioned at the left side of valve body 1.Described valve body 1 is provided with three valve pockets 2,3,4, first valve pocket 2, second valve pocket 3 and the 3rd valve pocket 4 are the clear opening structure, the three is parallel to each other, and connect upper and lower end face respectively to valve body 1, and first valve pocket 2 and second valve pocket 3 are positioned at the left part of valve body 1, first valve pocket 2 is preceding, second valve pocket 3 after, and the 3rd valve pocket 4 is positioned at the right part of valve body 1.
From Fig. 1, Fig. 2, Fig. 3 and Fig. 4 as can be known, the upper end of first valve pocket 2 is a thread section, so that the screw of packing into, with the upper end-hole sealing of first valve pocket 2.The upper chambers wall of first valve pocket 2 has import, and this import is the liquid feeding end of first valve pocket 2, and the first passage 5 of the liquid feeding end of first valve pocket 2 by horizontal distribution on the valve body 1 communicates with liquid entering hole P1.The lower chamber wall of first valve pocket 2 has outlet, and this outlet is the outlet end of first valve pocket 2, and the second channel 6 of the outlet end of first valve pocket 2 by horizontal distribution on the valve body 1 communicates with the first liquid outlet P2.Safety valve 7 is a needle-valve, insert from the bottom of first valve pocket 2 from lower to upper, and the syringe needle of safety valve 7 is higher than the outlet end of first valve pocket 2.Safety valve 7 is opened when needed, and the liquid of controlling in first valve pocket 2 flows to outlet end from liquid feeding end.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, control valve 8 inserts from the top of second valve pocket 3 from top to bottom, and the import of this control valve 8 communicates with liquid entering hole P1 by the third channel 10 that valve body 1 upper level distributes.Solenoid valve 9 is a needle-valve, and solenoid valve 9 inserts from the bottom of second valve pocket 3 from lower to upper, and the syringe needle of solenoid valve 9 stretches in the outlet of control valve 8 sealing of these solenoid valve 9 control control valves 8 outlets and unimpeded.Also offer four-way 11 on described valve body 1, the entrance point of this four-way 11 communicates with the bottom of second valve pocket 3, and the place of communicating is lower than the syringe needle of solenoid valve 9.The outlet end of four-way 11 is divided into two-way, and one the tunnel communicates with the second liquid outlet P3, and the liquid feeding end on another Lu Yudi three valve pockets 4 tops is communicated with, and the upper end of the 3rd valve pocket 4 is a thread section, so that the screw of packing into, with the upper end-hole sealing of the 3rd valve pocket 4.The outlet end of described the 3rd valve pocket 4 bottoms communicates with the first liquid outlet P2.One-way valve 12 is a needle-valve, and this one-way valve 12 inserts from the bottom of the 3rd valve pocket 4 from lower to upper, and the syringe needle of one-way valve 12 is positioned at the top of the 3rd valve pocket 4 outlet ends, the liquid in one-way valve 12 controls the 3rd valve pocket 4 from liquid feeding end to the outlet end one-way flow.
The present invention is integrated in safety valve 7, control valve 8, solenoid valve 9 and one-way valve 12 on the same valve body 1, and wherein safety valve 7, control valve 8, solenoid valve 9 and one-way valve 12 are prior art, and its structure is not done at this and given unnecessary details.The present invention has one tunnel input, three tunnel outputs, and the height of outlet pressure can control automatically by the power of input electrical signal, and the mode of Current Control is a conventional means, does not also do at this and gives unnecessary details.From Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4; when the hydraulic system outlet pressure is higher than the setting pressure of safety valve 7; safety valve 7 is just opened; enter the fluid of first valve pocket 2 from valve body liquid entering hole P1, first passage 5; behind safety valve 7 and second channel 6; flow out from the first liquid outlet P2, play the unloading pressure protection effect.In the time of within the hydraulic system outlet pressure is in proper functioning setting pressure scope, safety valve 7 cuts out, solenoid valve 9 is by the big or small recloser of control electric current, when the hydraulic system outlet pressure is higher than solenoid valve 9 setting pressures, flow into the fluid of second valve pocket 3 from valve body liquid entering hole P1, third channel 10 and control valve 8, outwards flow out by 11 fens two-way of four-way, wherein one the road flows out from the second liquid outlet P3, as control oil channel such as flow, the effect of regulating flow is played in the control executing mechanism action; Another road enters in the 3rd valve pocket 4, flows out from the first liquid outlet P2 by one-way valve 12 again, plays the effect of regulating pressure.
Claims (5)
1. integrated electrohydraulic proportional control valves, on valve body, be provided with valve pocket, the surface of valve body offers liquid entering hole and liquid outlet, it is characterized in that: described valve body (1) is provided with three valve pockets (2,3,4), wherein the liquid feeding end of first valve pocket (2) communicates with liquid entering hole (P1) by first passage (5), the outlet end of first valve pocket (2) communicates with first liquid outlet (P2) by second channel (6), and safety valve (7) is housed in first valve pocket (2), and the liquid in this safety valve (7) control first valve pocket (2) flows to outlet end from liquid feeding end; Installation and control valve (8) and solenoid valve (9) in second valve pocket (3), wherein the import of control valve (8) communicates with liquid entering hole (P1) by third channel (10), and the outlet of control valve (8) communicates with second valve pocket (3), and is controlled by solenoid valve (9); On described valve body (1), also offer four-way (11), the entrance point of this four-way (11) communicates with second valve pocket (3), the outlet end of four-way (11) is divided into two-way, one the tunnel communicates with second liquid outlet (P3), the liquid feeding end of another Lu Yudi three valve pockets (4) is communicated with, the outlet end of described the 3rd valve pocket (4) communicates with first liquid outlet (P2), and one-way valve (12) is housed in the 3rd valve pocket (4), the liquid in this one-way valve (12) control the 3rd valve pocket (4) from liquid feeding end to the outlet end one-way flow.
2. integrated electrohydraulic proportional control valves according to claim 1, it is characterized in that: described first valve pocket (2), second valve pocket (3) and the 3rd valve pocket (4) are the clear opening structure, the three is parallel to each other, and connects respectively to the upper and lower end face of valve body (1).
3. integrated electrohydraulic proportional control valves according to claim 2 is characterized in that: the upper end of described first valve pocket (2) is a thread section, and safety valve (7) inserts from the bottom of first valve pocket (2) from lower to upper.
4. integrated electrohydraulic proportional control valves according to claim 2 is characterized in that: the upper end of described the 3rd valve pocket (4) is a thread section, and one-way valve (12) inserts from the bottom of the 3rd valve pocket (4) from lower to upper.
5. according to claim 2 or 3 or 4 described integrated electrohydraulic proportional control valves, it is characterized in that: described safety valve (7), solenoid valve (9) and one-way valve (12) are needle-valve, described control valve (8) inserts from the top of second valve pocket (3) from top to bottom, solenoid valve (9) inserts from the bottom of second valve pocket (3) from lower to upper, and the syringe needle of solenoid valve (9) stretches in the outlet of control valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103008XA CN101476573B (en) | 2009-01-06 | 2009-01-06 | Integrated electrohydraulic proportional control valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910103008XA CN101476573B (en) | 2009-01-06 | 2009-01-06 | Integrated electrohydraulic proportional control valves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101476573A CN101476573A (en) | 2009-07-08 |
| CN101476573B true CN101476573B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910103008XA Expired - Fee Related CN101476573B (en) | 2009-01-06 | 2009-01-06 | Integrated electrohydraulic proportional control valves |
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| Country | Link |
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| CN (1) | CN101476573B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032398B (en) * | 2012-12-21 | 2015-07-08 | 武汉航天波纹管股份有限公司 | Ball control flow jet type high-frequency electrohydraulic digital valve |
| CN105952929B (en) * | 2016-07-08 | 2018-04-27 | 上海东方压缩机厂有限公司 | A kind of check valve and the oxygenerator equipped with the check valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4153074A (en) * | 1973-02-15 | 1979-05-08 | Maxton Manufacturing Company | Hydraulic valve |
| CN85102444B (en) * | 1985-04-05 | 1987-09-23 | 武汉工学院 | Electroliquid integrated block with hydraulic control |
| CN2406096Y (en) * | 2000-01-26 | 2000-11-15 | 铁岭阀门股份有限公司 | Integrated hydraulic controlled valve |
| CN1271338C (en) * | 2004-06-25 | 2006-08-23 | 浙江大学 | Pile-up valve for frequency conversion hydraulic elevator |
-
2009
- 2009-01-06 CN CN200910103008XA patent/CN101476573B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4153074A (en) * | 1973-02-15 | 1979-05-08 | Maxton Manufacturing Company | Hydraulic valve |
| CN85102444B (en) * | 1985-04-05 | 1987-09-23 | 武汉工学院 | Electroliquid integrated block with hydraulic control |
| CN2406096Y (en) * | 2000-01-26 | 2000-11-15 | 铁岭阀门股份有限公司 | Integrated hydraulic controlled valve |
| CN1271338C (en) * | 2004-06-25 | 2006-08-23 | 浙江大学 | Pile-up valve for frequency conversion hydraulic elevator |
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| Publication number | Publication date |
|---|---|
| CN101476573A (en) | 2009-07-08 |
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Granted publication date: 20101208 Termination date: 20210106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |