CN101498376A - Guide type sequence valve - Google Patents
Guide type sequence valve Download PDFInfo
- Publication number
- CN101498376A CN101498376A CN 200810033435 CN200810033435A CN101498376A CN 101498376 A CN101498376 A CN 101498376A CN 200810033435 CN200810033435 CN 200810033435 CN 200810033435 A CN200810033435 A CN 200810033435A CN 101498376 A CN101498376 A CN 101498376A
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- valve
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- main valve
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- 239000000945 filler Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Abstract
A pilot sequence valve relates to the field of hydraulic control valves, comprising a main valve body, a main valve core arranged in the main valve body, and a pilot valve arranged on the top of the main valve body. The pilot sequence valve can be used as a unloading valve or a back pressure valve. The main valve body is arranged at the bottom of the pilot sequence valve, and provided with an oil inlet A and an oil outlet B, wherein the oil inlet A is a through hole, and the oil outlet B is in an L shape and is provided with two oil way control holes. The upper part of the oil inlet A is a main valve core hole the periphery of which is hermetically fixed on the main valve sleeve through a rubber pad, and the main valve sleeve is internally provided with the main valve core, wherein one end of a spring in the main valve core supports against the bottom of the pilot valve on the upper part of the main valve body. The main valve body is provided with a unidirectional hole and a unidirectional valve, and a unidirectional valve sleeve is connected to the valve body through thread, the tail part of the thread is provided with a sealing groove and a gasket, a guide column is arranged between the sealing groove and a left step so as to guarantee the coaxiality of the unidirectional valve core and the hole of the valve body. The invention is convenient in installation and reliable in sealing.
Description
Technical field:
The present invention relates to the pressure controlled valve class of hydraulic control engineering, specifically is a kind of guide type sequence valve.
Background technique:
In hydraulic system, sequence valve is in the system with two above duplexures, waits the valve of control actuating component sequence of movement according to the pressure in loop.The sequence valve that uses in the existing hydraulic machinery is by two classes: the one, and the directly controlled type sequence valve, main body is a sliding valve structure, adjusts sequence of movement by the pressure of main spring, the 2nd, indirect control sequence valve is controlled main valve events by hydraulic control valve, and these two kinds of valves all adopt valve pocket, valve core structure, their shortcoming is: complex structure, move rapidly inadequately, precision is low, the cost height, bag pressure not, the pressure loss is bigger, and is stuck easily, and maintenance is inconvenient.
Summary of the invention:
Technical problem to be solved by this invention is to provide a kind of novel guide type sequence valve, and this guide type sequence valve had both solved the deficiency of existing sequence valve, also possesses unloading valve, back pressure valve function again.
The present invention for the technological scheme that the technical solution problem adopts is:
A kind of guide type sequence valve is made up of pilot valve and main valve two-part, and described pilot valve is installed in the top of main valve; Described main valve body has filler opening A and oil outlet B in main valve body, described filler opening A is a penetration hole, and oil outlet B is L shaped hole, also has two control oil channel holes on described oil outlet B hole.Top in described filler opening A hole is divided into the main valve plug hole, by the fixing main valve housing of rubber seal, main valve plug is housed in the main valve housing around the main valve plug hole, wherein the bottom of guide's valve body of leaning at upper part of the main valve body of interior spring one end of main valve plug; Described pilot valve is by valve body and be installed in the guide valve core in the valve body, the plug screw of valve body left end and the controlling mechanism of valve body right-hand member and constitute.
Described controlling mechanism comprises that valve seat, spring, adjustment sleeve, packing ring, spring seat and nut constitute, and puts into the spring seat that is with packing ring in the adjustment sleeve, and spring places on the spring seat, and valve seat is placed on the spring, and adjustment sleeve is screwed into the pilot valve body, and valve seat is withstood on the guide valve core.The outside of described guide valve core is a guide valve seat, and guide valve seat is screwed into guide's valve body after sealing with back-up ring and seal ring, seals at the left end of the pilot valve body plug screw of screwing on, and the limit position of this side of guide valve core is fixed.
Be formed with spring chamber between described controlling mechanism medi-spring and the adjustment sleeve, in described spring chamber, have guide's valve opening downwards and link to each other with the control oil duct of main valve body.
The bottom of guide's valve body has shoulder hole, and the lower end of shoulder hole communicates with the main valve plug hole, and the upper end communicates with guide valve seat, is provided with damper in shoulder hole.Oil circuit is acted on the pilot valve by damper by filler opening A, is being discharged from oil outlet B by control oil channel, and oil pressure is set by the spring value.
Further technological scheme of the present invention is, in fluid-control one-way, can be on main valve body the opening one-way hole, in unidirectional hole, one-way valve is installed.One-way valve is made up of unidirectional valve pocket, unidirectional spring and nonreturn valve core.Unidirectional valve pocket is connected with valve body by screw thread, and run-out(of thread) has sealed groove dress seal ring, between sealed groove and the left side step guide cylinder is arranged, and has guaranteed the coaxality in the hole of nonreturn valve core and valve body.
Adopted guide's control on the guide type sequence valve of the present invention, so main spool spring rigidity can greatly reduce, the main valve area can increase, and open and shut characteristic significantly improves, and working pressure can greatly improve.Unidirectional valve pocket is connected with valve body by screw thread, and run-out(of thread) has sealed groove dress seal ring, between sealed groove and the left side step guide cylinder is arranged, and has guaranteed the coaxality in the hole of nonreturn valve core and valve body, and easy for installation, sealing is reliable.
Description of drawings:
Fig. 1 is a guide type sequence valve of the present invention cross-section sectional view;
Fig. 2 is a guide type sequence valve longitudinal section oil circuit schematic representation of the present invention;
Fig. 3 is a D-D sectional drawing among Fig. 2;
Fig. 4 is a B-B sectional drawing among Fig. 3.
The 1-main valve body; 2,29-damper; 3,11-spring; The 4-control oil channel; The 5-damper;
The 6-plug screw; 7-guide's valve body; 8-guide's spool; The 9-hole; The 10-valve seat; The 12-adjustment sleeve;
13,16-packing ring; The 14-Steel Cable Baffle Ring; The 15-spring seat; The 17-nut;
18,21-control oil channel; The 19-main valve housing; The 20-main valve plug; The unidirectional valve pocket of 22-;
The 23-unidirectional spring; The 24-nonreturn valve core; 25,26,27,28-control oil channel;
The 30-shoulder; The 31-spring chamber; The 32-guide valve seat; The unidirectional hole of 33-.
Embodiment:
Below in conjunction with drawings and the specific embodiments the present invention is done further introduction:
In Fig. 1, a kind of guide type sequence valve is installed in the main valve plug 20 in the main valve body 1 by main valve body 1, and the pilot valve at main valve body 1 top is formed, and wherein guide type sequence valve can be used as unloading valve and back pressure valve use.
Above-mentioned feature is achieved in that the bottom of guide type sequence valve is a main valve body 1, has filler opening A and oil outlet B in main valve body, and filler opening A is a penetration hole, and oil outlet B is L shaped hole, also has two control oil channel holes 4,18 on the oil outlet B hole.On the top in filler opening A hole is the main valve plug hole, by the fixing main valve housing 19 of rubber seal, main valve plug 20 is housed in the main valve housing 19 around the main valve plug hole, and main valve plug 20 interior spring 3 one ends lean the bottom at guide's valve body 7 on main valve body 1 top.Guide's valve body 7 is made of the plug screw 6 of the guide valve core in the valve body 8, valve body left end and the controlling mechanism of valve body right-hand member, controlling mechanism comprises that valve seat 10, spring 11, adjustment sleeve 12, packing ring 13, spring seat 15 and nut 17 constitute, put into the spring seat 15 that is with packing ring 13 in the adjustment sleeve 12, spring 11 places on the spring seat 15, valve seat 10 is placed on the spring 11, adjustment sleeve 12 is screwed into guide's valve body 7, and valve seat 10 is withstood on the guide valve core 8.On main valve body 1, snap in Steel Cable Baffle Ring 14, to prevent that adjustment sleeve 12 is deviate from from main valve body 1 when regulating pressure.In the outside of guide valve core 8 is guide valve seat 32, is screwed into guide's valve body 7 after guide valve seat 32 usefulness back-up rings and seal ring seal, and seals at the left end of pilot valve body 7 plug screw 6 of screwing on, and the limit position of guide valve core 8 these sides is fixed.
Referring to Fig. 2, Fig. 3, the present invention is opening one-way hole 33 on main valve body further, in the unidirectional hole 33 one-way valve is installed, one-way valve is made of unidirectional valve seat 22, unidirectional spring and nonreturn valve core 24, unidirectional hole 33 is from the side perforate of main valve body, communicate oil circuit one-way flow between filler opening A and oil outlet B with filler opening A hole and oil outlet B hole.
The present invention the time has 4 kinds for row's form in work: row interior confession in, outside for interior row, interior confession effluxes and outside supply to efflux.When making sequence valve, outlet generally communicates with working oil path, and when having only the relief circuit of work, its outlet communicates with oil circuit.
Embodiment explains with shown in Figure 1, when this valve is made back pressure valve, supplies interior row and outer for 2 kinds of forms of interior row in having.During for interior row, control oil channel 25,4 and 18 is opened, control oil channel 27,21 and 26 usefulness plug screws block, and see Fig. 4.The pressure of oil circuit A is seen Fig. 2 and Fig. 3 through control oil channel 25 and 28, acts on guide's spool 8 in guide's valve body 7 by damper 29.Simultaneously, it is through spring 3 load side of damper 2 effects with main valve plug 20.When this pressure surpassed the setting value of spring 11, guide's spool 8 moved towards the direction of spring 11.Flow to the B chamber by damper 5, shoulder 30 and control oil channel 4 by the A chamber again through the oil that damper 2 enters main valve plug 20 epicoeles this moment.Make main valve plug 20 have a pressure drop and rising.Allow fluid from A to B free-flow.The pressure that spring 11 is set remains unchanged, and it is constant that cracking pressure keeps.The leakage oil of guide's spool 8 is introduced hydraulic fluid port B through oil circuit 18 by inside.Can install and select one-way valve that hydraulic fluid port B to A is freely refluxed; Outer during for interior row's form, control oil channel 27,4 and 18 is opened, and control oil channel 25,21 and 26 usefulness plug screws block.The working principle of the valve of this moment is the same when arranging with interior confession is interior, just the input mode difference of control oil.Its control oil is to be provided by the outside by control oil channel 27.
For effluxing, control oil channel 25,4 and 21 or 26 is opened in when this valve is made sequence valve, and control oil channel 27 and 18 usefulness plug screws block.The working principle of this valve is identical when arranging with interior confession is interior, and just the mode difference of oil discharge is leaked at guide's spool place.Because of sequence valve A chamber and B chamber all lead to pressure oil, so the leakage oil at guide's spool place must flow back to fuel tank by control oil channel 21 or 26 under the situation of no back pressure.The control oil of main valve plug epicoele flows into the B chamber through control oil channel 4.
When this valve is made unloading valve, be outer for effluxing form. Control oil channel 27,21 or 26 is opened; Control oil channel 25,4 and 18 usefulness plug screws block.External pilot pressure oil acts on guide's spool 10 of guide's valve body 7 through control oil channel 25, damper 29; The pressure oil in A chamber acts on the epicoele of main valve plug 20 by damper 2 simultaneously.When the pressure in X chamber raises and surpass the setting of spring 11, guide's spool 8 is moved towards the direction of spring 11.Fluid can be through flow controller 5 and hole 9 (what Gong efflux outward just has) the spring-loaded side inflow spring chamber 31 from main valve plug 20, and the force value of main valve plug 20 spring-loaded sides descends, and makes main valve plug 20 risings.Therefore, fluid can flow into the B chamber with the pressure loss of minimum from the A chamber, thereby reaches the purpose of off-load.Control oil in the spring chamber 31 should be gone into fuel tank through oil circuit 21 or 26 no pressures.The selectable one-way valve can be installed, be used for freely refluxing from hydraulic fluid port B to A.
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 the foregoing description 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 (4)
1. a guide type sequence valve is made up of pilot valve and main valve two-part, and described pilot valve is installed in the top of main valve; It is characterized in that: the bottom of described guide type sequence valve is a main valve body, has filler opening A and oil outlet B in the main valve body, and filler opening A is a penetration hole, and oil outlet B is L shaped hole, also has two control oil channel holes on oil outlet B hole; Described top in filler opening A hole is equipped with by the fixing main valve housing of rubber seal, and main valve plug is housed in the main valve housing; Described pilot valve is made of the plug screw of the guide valve core in the valve body, valve body left end and the controlling mechanism of valve body right-hand member.
2. according to the described guide type sequence valve of claim 1, it is characterized in that: described controlling mechanism comprises that valve seat, spring, adjustment sleeve, packing ring, spring seat and nut constitute, put into the spring seat that is with packing ring in the adjustment sleeve, spring places on the spring seat, valve seat is placed on the spring, adjustment sleeve is screwed into the pilot valve body, and valve seat is withstood on the guide valve core.
3. according to the described guide type sequence valve of claim 1, it is characterized in that: describedly have a unidirectional hole on main valve body, in unidirectional hole one-way valve is installed, one-way valve is made up of unidirectional valve pocket, unidirectional spring and nonreturn valve core.
4. unidirectional valve pocket according to claim 3, it is characterized in that: unidirectional valve pocket is connected with valve body by screw thread, run-out(of thread) has sealed groove dress seal ring, between sealed groove and the left side step guide cylinder is arranged, and has guaranteed the coaxality in the hole of nonreturn valve core and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810033435 CN101498376A (en) | 2008-02-01 | 2008-02-01 | Guide type sequence valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810033435 CN101498376A (en) | 2008-02-01 | 2008-02-01 | Guide type sequence valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101498376A true CN101498376A (en) | 2009-08-05 |
Family
ID=40945578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810033435 Pending CN101498376A (en) | 2008-02-01 | 2008-02-01 | Guide type sequence valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498376A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878118A (en) * | 2011-07-11 | 2013-01-16 | 上海立新液压有限公司 | Double-channel control two-way plug-in valve |
| CN103122881A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Pilot reducing valve |
| CN104632745A (en) * | 2015-02-11 | 2015-05-20 | 华侨大学 | Sequence valve with magneto-rheological pilot valve |
| CN104632744A (en) * | 2015-02-11 | 2015-05-20 | 华侨大学 | Magneto-rheological pilot valve |
| CN106704283A (en) * | 2017-02-17 | 2017-05-24 | 洛阳理工学院 | Low-loss damping pilot-type sequence valve |
| CN107969140A (en) * | 2015-09-07 | 2018-04-27 | Ｋｙｂ株式会社 | unidirectional flow control valve |
| CN107989848A (en) * | 2018-01-17 | 2018-05-04 | 邵立坤 | A kind of energy-saving sequence valve |
| CN109555746A (en) * | 2019-01-03 | 2019-04-02 | 宏乔科技(深圳)有限公司 | It steps on the fixation pressure sequence valve of vehicle bridge hydraulic system and steps on vehicle bridge |
| CN111810685A (en) * | 2020-07-30 | 2020-10-23 | 上海汉维液压技术有限公司 | Quick response prefill valve |
| WO2021203926A1 (en) * | 2020-04-10 | 2021-10-14 | 浙江盾安人工环境股份有限公司 | Valve body assembly and combined valve having same |
| CN113513607A (en) * | 2020-04-10 | 2021-10-19 | 盾安环境技术有限公司 | Combination valve |
-
2008
- 2008-02-01 CN CN 200810033435 patent/CN101498376A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878118A (en) * | 2011-07-11 | 2013-01-16 | 上海立新液压有限公司 | Double-channel control two-way plug-in valve |
| CN103122881A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Pilot reducing valve |
| CN103122881B (en) * | 2011-11-18 | 2016-01-27 | 广西柳工机械股份有限公司 | Guide's reduction valve |
| CN104632745A (en) * | 2015-02-11 | 2015-05-20 | 华侨大学 | Sequence valve with magneto-rheological pilot valve |
| CN104632744A (en) * | 2015-02-11 | 2015-05-20 | 华侨大学 | Magneto-rheological pilot valve |
| CN107969140A (en) * | 2015-09-07 | 2018-04-27 | Ｋｙｂ株式会社 | unidirectional flow control valve |
| CN106704283A (en) * | 2017-02-17 | 2017-05-24 | 洛阳理工学院 | Low-loss damping pilot-type sequence valve |
| CN106704283B (en) * | 2017-02-17 | 2018-03-20 | 洛阳理工学院 | A kind of low-loss and the guide type sequence valve of vibration damping |
| CN107989848A (en) * | 2018-01-17 | 2018-05-04 | 邵立坤 | A kind of energy-saving sequence valve |
| CN109555746A (en) * | 2019-01-03 | 2019-04-02 | 宏乔科技(深圳)有限公司 | It steps on the fixation pressure sequence valve of vehicle bridge hydraulic system and steps on vehicle bridge |
| CN109555746B (en) * | 2019-01-03 | 2023-09-26 | 宏乔科技(深圳)有限公司 | Fixed pressure sequence valve of dock bridge hydraulic system and dock bridge |
| WO2021203926A1 (en) * | 2020-04-10 | 2021-10-14 | 浙江盾安人工环境股份有限公司 | Valve body assembly and combined valve having same |
| CN113513607A (en) * | 2020-04-10 | 2021-10-19 | 盾安环境技术有限公司 | Combination valve |
| CN113513607B (en) * | 2020-04-10 | 2022-12-09 | 盾安环境技术有限公司 | Combination valve |
| JP2023520282A (en) * | 2020-04-10 | 2023-05-17 | 浙江盾安人工環境股▲ふん▼有限公司 | Valve body assembly and composite valve having the same |
| JP7550229B2 (en) | 2020-04-10 | 2024-09-12 | 浙江盾安人工環境股▲ふん▼有限公司 | Valve body assembly and composite valve having the same |
| CN111810685A (en) * | 2020-07-30 | 2020-10-23 | 上海汉维液压技术有限公司 | Quick response prefill valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090805 |