CN103375617A - Cartridge pressure reduction valve - Google Patents
Cartridge pressure reduction valve Download PDFInfo
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- CN103375617A CN103375617A CN2012101113741A CN201210111374A CN103375617A CN 103375617 A CN103375617 A CN 103375617A CN 2012101113741 A CN2012101113741 A CN 2012101113741A CN 201210111374 A CN201210111374 A CN 201210111374A CN 103375617 A CN103375617 A CN 103375617A
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- main valve
- spring
- valve
- adjusting
- valve sleeve
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Abstract
The invention discloses a cartridge pressure reduction valve which comprises an adjusting valve sleeve, an adjusting device, a spring valve seat, a main valve sleeve and a main valve element disposed in the main valve sleeve. A hook is disposed at the one end of the main valve sleeve. An annular groove is formed at one end of the adjusting valve sleeve. The main valve sleeve is connected with the adjusting valve sleeve. The hook of the main valve sleeve is fixed in the annular groove of the adjusting valve. The other end of the adjusting valve sleeve is connected with the adjusting device. The spring valve seat is disposed between the adjusting valve sleeve and the main valve sleeve. One end of the spring valve seat is connected with the main valve sleeve. The other end of the main valve sleeve is provided with a stepped hole. A groove is formed in the main valve element. The cartridge pressure reduction valve has the advantages that one end of adjusting valve sleeve closes up to clamp the hook of the main valve sleeve so as to fix the main valve sleeve, the main valve sleeve is connected with the adjusting valve sleeve and has certain freedom, machining difficulty is lowered as compared with threaded connection, and two end faces of the main valve sleeve can keep vertical to achieve a seal effect.
Description
Technical field
The present invention relates to field of hydraulic control, particularly a kind of cartridge pressure reduction valve.
Background technique
Reduction valve is by adjusting, and inlet pressure is reduced to the outlet pressure of a certain needs, and relies on the energy of medium itself, makes outlet pressure automatically keep stable valve.From hydromechanical viewpoint, reduction valve is a throttle element that local resistance can change, and namely by changing orifice size, the kinetic energy of flow velocity and fluid is changed, and causes the different pressure losses, thereby reaches the purpose of decompression.Then rely on the adjusting of control and regulating system, the fluctuation of downstream pressure and spring force are balanced each other, make downstream pressure in certain margin of error, keep constant.
The adjusting valve pocket of existing reduction valve and main valve housing generally all are to use to be threaded, and are threaded that it is large to have a difficulty of processing, the shortcoming that sealability is low; The main valve plug autokinesis of existing reduction valve is low, and the speed of response of valve is slow, and the low sealed type of main valve housing and plug-in opening produces distortion easily.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of easy for installation, sealability is high, it is highly sensitive to use, be not easy to produce a kind of cartridge pressure reduction valve of distortion.
For achieving the above object, technological scheme of the present invention is as follows:
A kind of cartridge pressure reduction valve, described reduction valve comprises to be regulated valve pocket, controlling device, spring valve seat, main valve housing and is placed in the interior main valve plug of main valve housing, one end of described main valve housing is provided with hook, one end of described adjusting valve pocket is provided with circular groove, described main valve housing is connected with the adjusting valve pocket, hook on the described main valve housing is fixed in the circular groove that modulating valve puts, and the other end of described adjusting valve pocket is connected with controlling device; Described spring valve seat is placed in to be regulated between valve pocket and the main valve housing, and an end of described spring valve seat is connected with main valve housing, and the other end of described main valve housing is provided with shoulder hole, and described main valve plug is provided with groove.
Preferably, described adjusting valve pocket and controlling device are fixed by Steel Cable Baffle Ring.
Preferably, described modulating valve puts and is provided with seal ring.
Preferably, be provided with spring seat in the described controlling device, be provided with pressure adjusting spring on the described spring seat, an end of described pressure adjusting spring is provided with poppet valve core.
Preferably, described main valve housing also comprises spring, and an end and the spring valve seat of described spring are fixed, and the other end is packed in the main valve plug; Described main valve housing is provided with endoporus, the first end face, the second end face, the first groove, the second groove, the first hole and the second hole, is respectively equipped with back-up ring and seal ring in described the first groove and the second groove, and described endoporus is provided with three-flute.
Preferably, described main valve plug is provided with flat-bottom hole, damping hole, runner, balancing slit, spring chamber, cylindrical and shoulder, is provided with first segment discharge orifice, second section discharge orifice in the described groove.
By technique scheme, the invention has the beneficial effects as follows:
Hook on the main valve housing of the present invention is fixed in the circular groove that modulating valve puts, play fixedly main valve housing, main valve housing is connected with the adjusting valve pocket, and make it that certain degrees of freedom be arranged, compare with the mode that is threaded and reduced difficulty of processing, while so that the main valve housing both ends of the surface can keep the vertical seal action that plays; Have on the main valve plug two place's grooves can reduce flow by the time hydraulic power, main valve plug is improved in the sensitivity of motion, improve the speed of response of valve; Sealing place has shoulder hole at the bottom of main valve housing and plug-in opening, and main valve housing can stress and is out of shape.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the sectional view of cartridge pressure reduction valve of the present invention;
Fig. 2 is the sectional view of main valve plug of the present invention;
Fig. 3 is the sectional view of main valve housing of the present invention.
Numeral and the represented corresponding part title of letter among the figure:
1, regulate valve pocket 2, controlling device 3, spring valve seat 4, main valve housing 5, main valve plug 6, hook 7, circular groove 8, Steel Cable Baffle Ring 9, spring seat 10, pressure adjusting spring 11, poppet valve core 12, the first seal ring 13, spring chamber 14, spring 15, endoporus 16, the first end face 17, the second end face 18, the first groove 19, the second groove 20, the first hole 21, the second hole 22, back-up ring 23, the second seal ring 24, three-flute 25, damping hole 26, shoulder hole 27, groove 28, first segment discharge orifice 29, second section discharge orifice 30, cylindrical 31, flat-bottom hole 32, runner 33, shoulder 34, plane 35, balancing slit
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
A kind of cartridge pressure reduction valve of the present invention, described reduction valve comprises to be regulated valve pocket 1, controlling device 2, spring valve seat 3, main valve housing 4 and is placed in main valve plug 5 in the main valve housing 4, one end of described main valve housing 4 is provided with hook 6, one end of described adjusting valve pocket 1 is provided with circular groove 7, described main valve housing 4 is connected with adjusting valve pocket 1, hook 6 on the described main valve housing 4 is fixed in the circular groove 7 of regulating on the valve pocket 1, thereby plays the fixedly effect of main valve housing 4; The other end of described adjusting valve pocket 1 is connected with controlling device 2; And spacing by Steel Cable Baffle Ring 8, prevent that controlling device 2 from crossing pine and deviate from.
Be provided with spring seat 9 in the controlling device 2 of the present invention, be provided with pressure adjusting spring 10 on the described spring seat 9, the other end of described pressure adjusting spring 10 is provided with poppet valve core 11.
The present invention regulates valve pocket 1 and is provided with the first seal ring 12, the first seal rings 12 and seals, and prevents that the fluid of hydraulic fluid port Y from flowing out.
Spring valve seat 3 of the present invention is placed in to be regulated between valve pocket 1 and the main valve housing 4, and an end of described spring valve seat 3 is connected with main valve housing 4; Spring valve seat 3 all compresses with it and to play hard seal action after inserting insert hole, separates spring chamber 13 and hydraulic fluid port Y.
Main valve housing of the present invention also comprises spring 14, and an end of described spring 14 and spring valve seat 3 is fixing, and the other end is packed in the spring chamber 13 of main valve plug 5; Described main valve housing 4 is provided with endoporus 15, the first end face 16, the second end face 17, the first groove 18, the second groove 19, the first hole 20 and the second hole 21, and described the first hole 20 is hydraulic fluid port B, and described the second hole 21 is hydraulic fluid port A; Be respectively equipped with back-up ring 22 and the second seal ring 23 in described the first groove 18 and the second groove 19, described endoporus 15 is provided with three-flute 24; The stress that described three-flute 24 can reduce on the main valve housing 4 is concentrated, and the damping hole 25 on the assurance main valve plug 5 can be got the fluid of hydraulic fluid port A; Described the first groove 18 separates hydraulic fluid port B and hydraulic fluid port A, and described the second groove 19 separates hydraulic fluid port Y and hydraulic fluid port A; Described the first end face 16 and the second end face 17 are very circlet shape face of area, are subject to playing after the vertical effect effect of hard sealing.
Main valve housing 4 endoporus of the present invention are provided with shoulder hole 26 near the first end face 16 places, and main valve housing 4 can stress and be out of shape when main valve housing 4 pressurizeds seal firmly.
Be provided with first segment discharge orifice 28 and second section discharge orifice 29 in the groove 27 of main valve plug 5 of the present invention, groove 27 can reduce flow by the time hydraulic power, main valve plug 5 is improved in the sensitivity of motion, improve the speed of response of valve.
On the main valve plug 5 of the present invention cylindrical 30 is arranged, its size differs very little with the cylindrical of main valve plug 5, and it is to damping function.
Flat-bottom hole 31, balancing slit 35 are arranged on the main valve plug 5 of the present invention, and the plane 34 of main valve plug 5 is little with surface of contact at the bottom of the plug-in opening like this, and the fluid by first segment discharge orifice 28, second section discharge orifice 29 and runner 32 can act on the main valve plug 5.
On the main valve plug 5 of the present invention damping hole 25 is arranged, damping hole 25 can be obtained the pressure of hydraulic fluid port A, and makes comparisons with the setting pressure of spring 14, when the pressure in spring chamber 13 changes, come the position of mobile main valve plug 5, make shoulder 33 change the openings of sizes in hole on the main valve housing 5, with the pressure that obtains to set.
The present invention acts on initial position by spring 14 with main valve plug 5 when static position, this moment, this valve was often opened, and fluid can freely flow to hydraulic fluid port A from hydraulic fluid port B; Hydraulic fluid port A pressure acts on the end face of main valve plug 5 through first segment discharge orifice 28 and second section discharge orifice 29 and runner 32, and hydraulic fluid port A pressure acts on the poppet valve core 11 by the damping hole on the spring valve seat 3 through damping hole 25, spring chamber 13 simultaneously.
If the pressure of hydraulic fluid port A surpasses the setting value of pressure adjusting spring 10, poppet valve core 11 is opened, at this moment, fluid enters in the spring chamber 13 of spring chamber 13 by the poppet valve core 11 inflow adjusting valve pockets 1 of the damping hole on the spring valve seat 3 and unlatching through the damping hole 25 of main valve plug 5, and flows out from hydraulic fluid port Y; This moment is because of spring chamber 13 place's pressure decreaseds of main valve plug 5, main valve plug 5 is moved to regulating valve pocket 1 direction, and the upper shoulder 32 of main valve plug 5 changes the size in hole on the main valve housing 4, plays the pressure that reduces hydraulic fluid port A, until with the setting value of pressure adjusting spring 10, obtain the outlet pressure that needs.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. cartridge pressure reduction valve, described reduction valve comprises to be regulated valve pocket, controlling device, spring valve seat, main valve housing and is placed in the interior main valve plug of main valve housing, it is characterized in that: an end of described main valve housing is provided with hook, one end of described adjusting valve pocket is provided with circular groove, described main valve housing is connected with the adjusting valve pocket, hook on the described main valve housing is fixed in the circular groove that modulating valve puts, and the other end of described adjusting valve pocket is connected with controlling device; Described spring valve seat is placed in to be regulated between valve pocket and the main valve housing, and an end of described spring valve seat is connected with main valve housing, and the other end of described main valve housing is provided with shoulder hole, and described main valve plug is provided with groove.
2. a kind of cartridge pressure reduction valve according to claim 1, it is characterized in that: described adjusting valve pocket and controlling device are fixed by Steel Cable Baffle Ring.
3. a kind of cartridge pressure reduction valve according to claim 1, it is characterized in that: described modulating valve puts and is provided with seal ring.
4. a kind of cartridge pressure reduction valve according to claim 1, it is characterized in that: be provided with spring seat in the described controlling device, be provided with pressure adjusting spring on the described spring seat, an end of described pressure adjusting spring is provided with poppet valve core.
5. a kind of cartridge pressure reduction valve according to claim 1, it is characterized in that: described main valve housing also comprises spring, and an end and the spring valve seat of described spring are fixed, and the other end is packed in the main valve plug; Described main valve housing is provided with endoporus, the first end face, the second end face, the first groove, the second groove, the first hole and the second hole, is respectively equipped with back-up ring and seal ring in described the first groove and the second groove, and described endoporus is provided with three-flute.
6. a kind of cartridge pressure reduction valve according to claim 1, it is characterized in that: described main valve plug is provided with flat-bottom hole, damping hole, runner, balancing slit, spring chamber, cylindrical and shoulder, is provided with first segment discharge orifice, second section discharge orifice in the described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101113741A CN103375617A (en) | 2012-04-16 | 2012-04-16 | Cartridge pressure reduction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101113741A CN103375617A (en) | 2012-04-16 | 2012-04-16 | Cartridge pressure reduction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103375617A true CN103375617A (en) | 2013-10-30 |
Family
ID=49461194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101113741A Pending CN103375617A (en) | 2012-04-16 | 2012-04-16 | Cartridge pressure reduction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103375617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912862A (en) * | 2015-05-27 | 2015-09-16 | 长兴泗安科林植保专业合作社 | Hydraulic valve for agricultural vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3239931A1 (en) * | 1982-10-28 | 1984-05-03 | Mannesmann Rexroth GmbH, 8770 Lohr | Pressure valve, especially a pressure-limiting valve, pressure-reducing valve or the like |
| CN1077785A (en) * | 1992-04-21 | 1993-10-27 | 约恩·丹姆斯机器制造厂有限公司 | Pressure-limit valve |
| US5400817A (en) * | 1993-01-27 | 1995-03-28 | Richard Voss Grubenausbau Gmbh | High-capacity pressure limiting valve |
| CN201184438Y (en) * | 2008-01-28 | 2009-01-21 | 莱芜钢铁股份有限公司 | Overlapped type pressure relief valve |
| CN202545920U (en) * | 2012-04-16 | 2012-11-21 | 上海立新液压有限公司 | Insertion type pressure reducing valve |
-
2012
- 2012-04-16 CN CN2012101113741A patent/CN103375617A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3239931A1 (en) * | 1982-10-28 | 1984-05-03 | Mannesmann Rexroth GmbH, 8770 Lohr | Pressure valve, especially a pressure-limiting valve, pressure-reducing valve or the like |
| CN1077785A (en) * | 1992-04-21 | 1993-10-27 | 约恩·丹姆斯机器制造厂有限公司 | Pressure-limit valve |
| US5400817A (en) * | 1993-01-27 | 1995-03-28 | Richard Voss Grubenausbau Gmbh | High-capacity pressure limiting valve |
| CN201184438Y (en) * | 2008-01-28 | 2009-01-21 | 莱芜钢铁股份有限公司 | Overlapped type pressure relief valve |
| CN202545920U (en) * | 2012-04-16 | 2012-11-21 | 上海立新液压有限公司 | Insertion type pressure reducing valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912862A (en) * | 2015-05-27 | 2015-09-16 | 长兴泗安科林植保专业合作社 | Hydraulic valve for agricultural vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |