CN104912867A - Screw-in cartridge type pilot proportional directional valve - Google Patents
Screw-in cartridge type pilot proportional directional valve Download PDFInfo
- Publication number
- CN104912867A CN104912867A CN201510372604.3A CN201510372604A CN104912867A CN 104912867 A CN104912867 A CN 104912867A CN 201510372604 A CN201510372604 A CN 201510372604A CN 104912867 A CN104912867 A CN 104912867A
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- CN
- China
- Prior art keywords
- valve
- mouth
- port
- valve pocket
- restriction
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- 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.)
- Granted
Links
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
- F15B2013/004—Cartridge valves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Servomotors (AREA)
- Lift Valve (AREA)
Abstract
Provided is a screw-in cartridge type pilot proportional directional valve. The screw-in cartridge type pilot proportional directional valve comprises an end cap, a valve body, a transmission rod and a cylinder body. A control port X and a control port Y are arranged between the valve body and the cylinder body. The transmission rod is connected and fixed with a main valve core in the joggling manner. The main valve core and a valve sleeve are arranged in an over-lapped mode. The valve sleeve is provided with an A port, a P port and a B port from the top to the bottom. The lower end of the main valve core is provided with an oil return T port. The valve sleeve, near the A port and the B port, is provided with a throttling port of a valve sleeve I and a throttling port of a valve sleeve II. The screw-in cartridge type pilot proportional directional valve has following beneficial effects: the screw-in cartridge type pilot proportional directional valve is extensively applied to hydraulic control over ships, engineering machines and the like and has the primary function of controlling movement direction and movement speed of hydraulic actuator elements; rigid adjustments can be made to movement speed of hydraulic actuator elements by combination with a pressure compensated control valve; load changes exert no influence; and controllability of the actuator elements is improved.
Description
Technical field
The present invention relates to hydraulic control executive component, relate in particular to a kind of threaded insertion pilot proportional reversing valve.
Background technique
In hydraulic system, selector valve is one of primary component.We usually will implement executive component rate conversion, with regard to existing hydraulic control device, generally all adopt manual tune Flow valve to solve, and relatively complicated, automaticity is not high.Also the object adopting multiple selector valve and Flow valve combination to reach control rate is had, but these class methods, owing to have employed too much valve, make complicated operation, easily slip up, cause accident, and this equipment volume is comparatively large, cost is high, and system drops into also large.At present, Domestic market has occurred pilot proportional reversing valve, its effect is that passing ratio selector valve combines with amplifier, drives proportion electro-magnet to promote spool, namely controls direction and the size of liquid stream, provides accurate flow to hydraulic system.But existing pilot proportional reversing valve is inner easily there is outer seepage, and oil resistant liquid pollution capacity is weak, thus affects moving left and right of the spool of proportional reversing valve, makes output flow unstable.
Summary of the invention
The object of the present invention is to provide a kind of hydraulic fluid flow rate by valve pocket to change with spool mobile position, restriction characteristic is the threaded insertion pilot proportional reversing valve of two stage progressives.
A kind of threaded insertion pilot proportional reversing valve, comprise plug, valve body, drive link, cylinder body, be provided with between described valve body and cylinder body and control mouth X and control mouth Y, described drive link is fixedly connected with lower spring cup, clip spring seat and jump ring is provided with between described plug and upper spring seat, Compress Spring is provided with between described upper spring seat and lower spring cup, described drive link and main valve plug adopt joggle form to be connected and fixed, plus lap arranged in form is adopted between described main valve plug and valve pocket, described valve pocket is provided with A mouth from top to bottom, P mouth, B mouth, main valve plug lower end is provided with oil return inlet T mouth, valve pocket near described A mouth and B mouth is respectively arranged with sleeve throttling mouth and valve pocket II restriction.
Described valve pocket I restriction is provided with the some groups of throttle orifices be equally spaced, and the throttle orifice aperture in the middle of each group throttle orifice is maximum, i.e. A mouth, the throttle orifice aperture of A mouth both sides is reduced gradually.
Described valve pocket II restriction is provided with the some groups of throttle orifices be equally spaced, and the throttle orifice aperture in the middle of each group throttle orifice is maximum, i.e. B mouth, the throttle orifice aperture of B mouth both sides is reduced gradually.
Each group throttle orifice on described valve pocket I restriction and valve pocket II restriction and horizontal square are to being 60 degree of directions.
The present invention adopts the form of thread cartridge, is convenient to the design of hydraulic control valve group, processing, and can makes volume is less by the valve group of identical function, and quality is lighter, and beautiful shape is easy to operate.
The present invention is widely used in the hydraulic control such as boats and ships, engineering machinery, and major function is moving direction and the movement velocity of hydraulic control executive component (oil hydraulic motor, hydraulic jack etc.).And cooperation pressure compensated control valve, the rigidity that can realize the movement velocity of hydraulic actuator regulates, and not by the impact of load change, enhances the controllability of executive component.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that valve pocket I restriction launches distribution map;
Fig. 3 is hydraulic schematic diagram of the present utility model.
In figure 1, plug, 2, clip spring seat, 3, lower spring cup, 4, valve body, 5, mouth X is controlled, 6, control mouth Y, 7, A mouth, 8, P mouth, 9, B mouth, 10, valve pocket II restriction, 11, T mouth, 12, valve pocket, 13, valve pocket I restriction, 14, main valve plug, 15, drive link, 16, cylinder body, 17, Compress Spring, 18, upper spring seat, 19, jump ring, 20, throttle orifice.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described
A kind of threaded insertion pilot proportional reversing valve, comprise plug 1, valve body 4, drive link 15, cylinder body 16, be provided with between described valve body 4 and cylinder body 16 and control mouth X5 and control mouth Y6, it is characterized in that: described drive link 15 is fixedly connected with lower spring cup 3, clip spring seat 2 and jump ring 19 is provided with between described plug 1 and upper spring seat 18, Compress Spring 17 is provided with between described upper spring seat 18 and lower spring cup 3, described drive link 15 adopts joggle form to be connected and fixed with main valve plug 14, plus lap arranged in form is adopted between described main valve plug 14 and valve pocket 12, described valve pocket 12 is provided with A mouth 7 from top to bottom, P mouth 8, B mouth 9, main valve plug 14 lower end is provided with oil return inlet T mouth 11, valve pocket 12 near described A mouth 7 and B mouth 9 is respectively arranged with valve pocket I restriction 13 and valve pocket II restriction 10.
Described valve pocket I restriction 13 is provided with the some groups of throttle orifices be equally spaced, and the throttle orifice aperture in the middle of each group throttle orifice 20 is maximum, and namely throttle orifice 20 aperture of A mouth 7, A mouth 7 both sides is reduced gradually.
Described valve pocket II restriction 10 is provided with the some groups of throttle orifices be equally spaced, and the throttle orifice aperture in the middle of each group throttle orifice 20 is maximum, and namely throttle orifice 20 aperture of B mouth 9, B mouth 9 both sides is reduced gradually.
Each group throttle orifice on described valve pocket I restriction 13 and valve pocket II restriction 10 and horizontal square are to being 60 degree of directions.
During concrete enforcement, pilot operated by electric proportional pressure-relief valve control, electromagnetic force is opened controlling mouth X5, upper chamber's pressure declines rapidly, after the pressure difference controlling mouth X5 relation control mouth Y6 exceedes the lowest starting pressure of Proportional valve, drive link 15 drives main valve plug 14 upwards moving linearly, one section of dead band is had between P mouth 8 to A mouth 7, after stroke exceedes dead band, P--A, B-T communicates gradually, at this moment P mouth is to A mouth, B mouth is to T mouth, respectively by valve pocket I restriction 13 formed between main valve plug 14 and valve pocket 12, valve pocket II restriction 10 is connected, restriction characteristic is two stage progressives, along with control mouth X5, between Y6, pressure reduction is larger, the shift motion of main valve plug 14 is also larger, first sharply increased by the flow of main valve plug 14, rear slowly increase.
When controlling the pressure reduction between mouth X5 mouth, Y mouth and being less than lowest starting pressure, promote lower spring cup 3 by Compress Spring 17, lower spring cup 3 drives drive link 15 to reply centering, gets back to initial position.When main valve plug 14 moves down, P-B, A-T communicate, and now complete commutation.
The present invention adopts the form of thread cartridge, and main valve plug 14, valve pocket 12 all can adopt alloy steel products to make, and are convenient to heat treatment.And it is more wear-resisting that screw thread inserting type structure compares conventional construction, because main valve plug 14 and valve pocket 12 have quite high hardness, run into general oil residue, can shear, correspondingly improve contamination resistance.
Claims (4)
1. a threaded insertion pilot proportional reversing valve, comprise plug (1), valve body (4), drive link (15), cylinder body (16), be provided with between described valve body (4) and cylinder body (16) and control mouth X(5) and control mouth Y(6), it is characterized in that: described drive link (15) is fixedly connected with lower spring cup (3), clip spring seat (2) and jump ring (19) is provided with between described plug (1) and upper spring seat (18), Compress Spring (17) is provided with between described upper spring seat (18) and lower spring cup (3), described drive link (15) and main valve plug (14) adopt joggle form to be connected and fixed, plus lap arranged in form is adopted between described main valve plug (14) and valve pocket (12), described valve pocket (12) is provided with A mouth (7) from top to bottom, P mouth (8), B mouth (9), main valve plug (14) lower end is provided with oil return inlet T mouth (11), valve pocket (12) near described A mouth (7) and B mouth (9) is respectively arranged with valve pocket I restriction (13) and valve pocket II restriction (10).
2. a kind of threaded insertion pilot proportional reversing valve according to claim 1, it is characterized in that: described valve pocket I restriction (13) is provided with the some groups of throttle orifices be equally spaced, throttle orifice in the middle of each group throttle orifice (20), i.e. A mouth (7), aperture is maximum, and throttle orifice (20) aperture of described A mouth (7) both sides is reduced gradually.
3. a kind of threaded insertion pilot proportional reversing valve according to claim 1, it is characterized in that: described valve pocket II restriction (10) is provided with the some groups of throttle orifices be equally spaced, throttle orifice in the middle of each group throttle orifice (20), i.e. B mouth (9), aperture is maximum, and throttle orifice (20) aperture of described B mouth (9) both sides is reduced gradually.
4. a kind of threaded insertion pilot proportional reversing valve according to claim 1, is characterized in that: each the group throttle orifice on described valve pocket I restriction (13) and valve pocket II restriction (10) and horizontal square are to being 60 degree of directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372604.3A CN104912867B (en) | 2015-07-01 | 2015-07-01 | A kind of threaded insertion pilot proportional reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510372604.3A CN104912867B (en) | 2015-07-01 | 2015-07-01 | A kind of threaded insertion pilot proportional reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104912867A true CN104912867A (en) | 2015-09-16 |
| CN104912867B CN104912867B (en) | 2017-07-07 |
Family
ID=54082225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510372604.3A Active CN104912867B (en) | 2015-07-01 | 2015-07-01 | A kind of threaded insertion pilot proportional reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912867B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272600A (en) * | 2000-05-12 | 2000-11-08 | 西南交通大学 | High-speed numerical control proportion valve |
| US20020043287A1 (en) * | 2000-10-13 | 2002-04-18 | Yakov Beyrak | Proportional pilot operated directional valve |
| EP2233808A2 (en) * | 2009-03-26 | 2010-09-29 | Nabtesco Corporation | Multifunction relief valve and airplane emergency hydraulic power source unit having the same |
| CN102650305A (en) * | 2012-05-02 | 2012-08-29 | 浙江工业大学 | 2D hydraulic-power-assisted electro-hydraulic proportional reversing valve |
| US20130276915A1 (en) * | 2011-02-03 | 2013-10-24 | Parker Hannifin Manufacturing Finland Oy | Directional valve equipped with pressure control |
| CN103511376A (en) * | 2012-06-19 | 2014-01-15 | 上海立新液压有限公司 | High-frequency-response proportional direction valve |
| CN103775413A (en) * | 2014-02-13 | 2014-05-07 | 黄培华 | Improved proportional pneumatic operated directional valve |
| CN204755449U (en) * | 2015-07-01 | 2015-11-11 | 靖江市菲尔特液压机械有限公司 | Screw -in cartridge formula guide proportion switching -over valve |
-
2015
- 2015-07-01 CN CN201510372604.3A patent/CN104912867B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272600A (en) * | 2000-05-12 | 2000-11-08 | 西南交通大学 | High-speed numerical control proportion valve |
| US20020043287A1 (en) * | 2000-10-13 | 2002-04-18 | Yakov Beyrak | Proportional pilot operated directional valve |
| EP2233808A2 (en) * | 2009-03-26 | 2010-09-29 | Nabtesco Corporation | Multifunction relief valve and airplane emergency hydraulic power source unit having the same |
| US20130276915A1 (en) * | 2011-02-03 | 2013-10-24 | Parker Hannifin Manufacturing Finland Oy | Directional valve equipped with pressure control |
| CN102650305A (en) * | 2012-05-02 | 2012-08-29 | 浙江工业大学 | 2D hydraulic-power-assisted electro-hydraulic proportional reversing valve |
| CN103511376A (en) * | 2012-06-19 | 2014-01-15 | 上海立新液压有限公司 | High-frequency-response proportional direction valve |
| CN103775413A (en) * | 2014-02-13 | 2014-05-07 | 黄培华 | Improved proportional pneumatic operated directional valve |
| CN204755449U (en) * | 2015-07-01 | 2015-11-11 | 靖江市菲尔特液压机械有限公司 | Screw -in cartridge formula guide proportion switching -over valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104912867B (en) | 2017-07-07 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214500, 300 meters east of Mataoqiao, Jiangping Road, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: Jiangsu feiter Hydraulic Machinery Co.,Ltd. Address before: 214500, 300 meters east of Maqiao Bridge, Jiangping Road, Jingjiang City, Taizhou City, Jiangsu Province Patentee before: JINGJIANG FLUID HYDRAULICS MACHINE Co.,Ltd. |
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| CP03 | Change of name, title or address |