CN106122152B - Ultra high pressure control valve - Google Patents
Ultra high pressure control valve Download PDFInfo
- Publication number
- CN106122152B CN106122152B CN201610780511.9A CN201610780511A CN106122152B CN 106122152 B CN106122152 B CN 106122152B CN 201610780511 A CN201610780511 A CN 201610780511A CN 106122152 B CN106122152 B CN 106122152B
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- Prior art keywords
- valve
- guide
- pressure
- endoporus
- main valve
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of ultra high pressure control valve, belong to hydraulic control system technical field, including main valve body, main valve housing is installed in the endoporus of main valve body, the main valve plug that can be slided is provided with the endoporus of main valve housing, main valve housing one end is provided with transition end cap, pressure spool chamber is installed by the way of slipping into transition end cap endoporus, main valve plug upper surface contacts with the lower surface of pressure spool chamber, the effective active area of pressure spool chamber upper end is more than the effective active area at main valve plug oil inlet, the transitioning end side of covering is provided with cover plate, main spring is provided between the groove top of cover plate and pressure spool chamber upper surface, the pressure pilot valve with decompression is installed above cover plate.The present invention can be obtained larger by governor pressure by relatively low control pressure, and control pressure is easily realized, can realize the Stress control of big flow Superhigh Pressure Hydraulic System in addition, is reduced the complexity of control system, is improved security.
Description
Technical field
The invention belongs to hydraulic control system technical field, and in particular to a kind of ultra high pressure control valve.
Background technology
At present, substantial amounts of hydraulic pressure adjusting control valve is applied in hydraulic mechanical equipment, some in these valves are Direct Action Types
Structure, suitable for the less hydraulic system of flow；Some are pilot-operated type structures, suitable for the hydraulic system that flow is larger.Currently
The hydraulic pressure regulating valve of these forms is due to the reasons in structure of itself, it is impossible to controls the pressure of Superhigh Pressure Hydraulic System, less
The pressure of big flow Superhigh Pressure Hydraulic System can be controlled, but in present hydraulic mechanical equipment and its Hydraulic Power Transmission System, by
In working ability and the demand of processing technology, to big flow Superhigh Pressure Hydraulic System and the demand of big flow ultrahigh-pressure hydraulic element
Also it is more and more, requirement to its performance also more and more higher.
The content of the invention
It is an object of the invention to provide a kind of ultra high pressure control valve, easily and safely adjustment control big flow can surpass
The pressure of high pressure (hydraulic system pressure is in more than 50Mpa) hydraulic system.
Ultra high pressure control valve of the present invention, including main valve body, main valve housing is installed in the endoporus of main valve body, main valve housing
The main valve plug that can be slided is provided with endoporus, the sealing surface of main valve plug and the sealing strip of main valve housing are in close contact, and form sealing
Line or sealing surface, sealing ring, main valve housing are equipped between main valve plug and main valve housing endoporus between main valve housing and main valve body endoporus
One end is provided with transition end cap, is provided with pressure spool chamber in transition end cap endoporus by the way of slipping into, main valve plug it is upper
End is extend into the endoporus of transition end cap, and main valve plug upper surface contacts with the lower surface of pressure spool chamber, pressure spool chamber
The effective active area of upper end is more than the effective active area at main valve plug oil inlet, and the transitioning end side of covering is provided with cover plate, covers
Setting is fluted in plate, and the upper end of pressure spool chamber is extend into groove, in groove top and pressure spool chamber upper surface
Between be provided with main spring, the top of cover plate is provided with the oilhole inside communication groove, set in cover plate, transition end cap and main valve body
Corresponding control oil circuit is equipped with, the pressure pilot valve with decompression, oilhole and control oil communication are installed above cover plate
Pressure pilot valve.
The main valve plug, which is stretched on the periphery of transition end cap one end, is provided with annular groove, and bolster is provided with annular groove,
Buffering is played a part of in the action that can be opened and closed to main valve plug, makes the opening and closing of main valve plug steady.
The pressure pilot valve includes guide valve blocks, pilot valve, guide's valve pocket and guide's spring spool, guide valve blocks peace
Mounted in the upper end of cover plate, guide's valve pocket is fitted into the endoporus of guide valve blocks by the way of sliding, and pilot valve is using slip
Mode is fitted into the endoporus of guide's valve pocket, and guide valve blocks one end is provided with guide's spring spool, the other end is provided with valve element adjustment
Device, pressure regulation device is provided with the endoporus of guide's spring spool, guide valve blocks endoporus passes through pilot control oil communication
The endoporus of guide's spring spool endoporus and valve element adjusting apparatus, the oilhole A and hydraulic fluid port for connecting its endoporus are provided with guide valve blocks
B, oilhole A are connected with the oilhole on cover plate, hydraulic fluid port B connections control oil circuit.Using the pressure pilot valve 10 of decompression, the control
Pressure is easily realized, due to using pilot control principle, so as to realize the Stress control of big flow Superhigh Pressure Hydraulic System.
The valve element adjusting apparatus includes valve element adjustment end cap, and valve element adjustment end cover bolt is fixedly connected on guide valve blocks
One end, valve element adjusting bolt is in the screwed hole of valve element adjustment end cap, and locking nut is in the valve element adjusting bolt.
The pressure regulation device includes guide's spring, guide's spring base and guide's valve seat, guide's spring base and pilot valve
Seat is mounted in the both ends of guide's spring spool endoporus, and the both ends of guide's spring closely connect with guide's spring base and guide's valve seat respectively
Touch, pressure adjustment blind nut is mounted in the other end of guide's spring spool, and pressure adjusting bolt is in the endoporus of pressure adjustment blind nut.
Main spring seat is provided between groove top surface in the main spring and cover plate so that main spring is more steady.
The inner hole sleeve of the transition end cap is on the face of cylinder of main valve housing one end, and the endoporus of transition end cap is justified with main valve housing
Seal is provided between cylinder, prevents hydraulic fluid leak.
Seal is provided between the periphery of the pressure spool chamber and the endoporus of transition end cap, prevents hydraulic oil from letting out
Leakage.
The bolster includes buffer substrate tablet, buffer spring, buffer bar and pad, and the side of buffer substrate tablet and pad is provided with can
The rectangular channel of annular groove is caught in, buffer spring is arranged in the shoulder hole of buffer substrate tablet, and buffer bar is enclosed on the interior of spring, buffer bar
The lower surface of larger diameter end pressed against spring, and pad is pressed on the upper surface of the larger diameter end of buffer bar, when main valve plug is opened,
Pad and buffer substrate tablet are made the opening and closing of primary spools steady by the active force of fluid using the buffering of buffer spring.
Compared with prior art, the advantage of the invention is that：
Can be obtained by relatively low control pressure it is larger by governor pressure, due to the pressure guide using decompression
Valve, the control pressure are easily realized, due to using pilot control principle, so as to realize big flow Superhigh Pressure Hydraulic System
Stress control, the complexity of control system is reduced, reduces fault rate, improves security.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the present invention；
Fig. 2 is the enlarged diagram at H；
In figure：1st, main valve body, 2, main valve housing, 3, main valve plug, 4, bolster, 4.1, pad, 4.2, buffer bar, 4.3, buffering
Spring, 4.4, shoulder hole, 4.5, buffer substrate tablet, 5, pressure spool chamber, 6, main spring, 7, main spring seat, 8, transition end cap, 9, lid
Plate, 10, pressure pilot valve, 11, control oil circuit, 12, valve element adjusting bolt, 13, valve element adjustment end cap, 14, locking nut, 15,
Pilot valve, 16, guide valve blocks, 17, guide's valve pocket, 18, pressure adjusting bolt, 19, pressure adjustment blind nut, 20, guide's spring,
21st, guide's spring base, 22, guide's valve seat, 23, guide's spring spool, 24, pilot control oil circuit.
Embodiment
It is further detailed to the embodiment work of the present invention by the description to optimum embodiment below against accompanying drawing
Thin explanation.
Ultra high pressure control valve as shown in Figure 1, including main valve body 1, main valve housing 2 is installed in the endoporus of main valve body 1,
The main valve plug 3 that can be slided is provided with the endoporus of main valve housing 2, the sealing surface of main valve plug 3 closely connects with the sealing strip of main valve housing 2
Touch, form seal line or sealing surface, be all provided between main valve plug 3 and the endoporus of main valve housing 2 between main valve housing 2 and the endoporus of main valve body 1
There is sealing ring, the one end of main valve housing 2 is provided with transition end cap 8, and being provided with pressure by the way of slipping into the endoporus of transition end cap 8 puts
Big valve core 5, the upper end of main valve plug 3 are extend into the endoporus of transition end cap 8, under the upper surface of main valve plug 3 and pressure spool chamber 5
End contact, the effective active area of the upper end of pressure spool chamber 5 are more than the effective active area at the oil inlet of main valve plug 3, mistake
Cross the top of end cap 8 and cover plate 9 is installed, setting is fluted in cover plate 9, and the upper end of pressure spool chamber 5 is extend into groove, recessed
Main spring 6 is provided between groove top portion and the upper surface of pressure spool chamber 5, the top of cover plate 9 is provided with inside communication groove
Oilhole, corresponding control oil circuit 11 is provided with cover plate 9, transition end cap 8 and main valve body 1, and the top of cover plate 9 is provided with decompression
The pressure pilot valve 10 of function, oilhole connect pressure pilot valve 10 with control oil circuit 11.
Main valve plug 3, which is stretched on the periphery of the one end of transition end cap 8, is provided with annular groove, and bolster 4 is provided with annular groove, can
To play a part of buffering to the action that main valve plug 3 opens and closes, make the opening and closing of main valve plug 3 steady.
Pressure pilot valve 10 includes guide valve blocks 16, pilot valve 15, guide's valve pocket 17 and guide's spring spool 23, guide
Valve body 16 is arranged on the upper end of cover plate 9, and guide's valve pocket 17 is fitted into the endoporus of guide valve blocks 16 by the way of sliding, pilot valve
Core 15 using slide by the way of be fitted into the endoporus of guide's valve pocket 17, the one end of guide valve blocks 16 be provided with guide's spring spool 23,
The other end is provided with valve element adjusting apparatus, and pressure regulation device, guide valve blocks 16 are provided with the endoporus of guide's spring spool 23
Endoporus connects the endoporus of guide spring spool 23 and the endoporus of valve element adjusting apparatus by pilot control oil circuit 24, on guide valve blocks 16
The oilhole A and hydraulic fluid port B for connecting its endoporus are provided with, oilhole A is connected with the oilhole on cover plate 9, hydraulic fluid port B connections control oil circuit 11,
Using the pressure pilot valve 10 of decompression, the control pressure is easily realized, due to using pilot control principle, so as to reality
The Stress control of existing big flow Superhigh Pressure Hydraulic System.
Valve element adjusting apparatus includes valve element adjustment end cap 13, and valve element adjustment end cap 13 is fixedly connected on guide valve blocks with bolt
16 one end, valve element adjusting bolt 12 is in the screwed hole of valve element adjustment end cap 13, and locking nut 14 is mounted in valve element adjustment spiral shell
On bar 12.
Pressure regulation device includes guide's spring 20, guide's spring base 21 and guide's valve seat 22, guide's spring base 21 and elder generation
Guide valve seat 22 is mounted in the both ends of the endoporus of guide's spring spool 23, the both ends of guide's spring 20 respectively with guide's spring base 21 and guide
Valve seat 22 is in close contact, and pressure adjustment blind nut 19 is mounted in the other end of guide's spring spool 23, and pressure adjusting bolt 18 is mounted in pressure
In the endoporus of power adjustment blind nut 19.
Main spring seat 7 is provided between groove top surface in main spring 6 and cover plate 9 so that main spring 6 is more steady.
The inner hole sleeve of transition end cap 8 is on the face of cylinder of the one end of main valve housing 2, and the endoporus of transition end cap 8 is justified with main valve housing 2
Seal is provided between cylinder, prevents hydraulic fluid leak.
Seal is provided between the periphery of pressure spool chamber 5 and the endoporus of transition end cap 8, prevents hydraulic fluid leak.
As shown in Fig. 2 bolster 4 includes buffer substrate tablet 4.5, buffer spring 4.3, buffer bar 4.2 and pad 4.1, buffer substrate tablet
4.5 and the side of pad 4.1 be provided with the rectangular channel that can be caught in annular groove, buffer spring 4.3 is arranged on the ladder of buffer substrate tablet 4.5
In hole 4.4, buffer bar 4.2 is enclosed in buffer spring 4.3, and the lower surface of the larger diameter end of buffer bar 4.2 pressed against buffer spring
4.3, pad 4.1 is pressed on the upper surface of the larger diameter end of buffer bar 4.2.When main valve plug 3 is opened, pad 4.1 and buffer substrate tablet
4.5 by fluid active force, make the opening and closing of primary spools 3 steady using the buffering of buffer spring 4.3.
The course of work of ultra high pressure valve scheme of the present invention is as follows：Each parts in novel ultrahigh pressure pressure valve scheme
After the completion of assembling, pilot control oil is through controlling oil circuit 11 and pilot control oil circuit 24 to enter the oil suction chamber of pressure pilot valve 10, master
The control chamber of valve element 3 and the control chamber of pilot valve 15, the pressure of pilot control oil act on the front end of pilot valve 15 while passed through
The hydraulic fluid port B of pressure pilot valve 10 acts on the upper surface of pressure spool chamber 5, the pressure adjusting bolt of regulation pressure pilot valve 10
18, when the adjusting force of pressure pilot valve 10 is reached a certain setting value, the hydraulic coupling that this adjusting force can be generated is referred to as adjusting pressure
Power, when the pressure of pilot control oil is less than regulation pressure, pilot valve 15 is failure to actuate, and main valve plug 3 lifts, and leaves sealing surface,
Main valve open, the pressure of controlled system are in minimal pressure force value, and adjusting spool adjusting bolt 12 can adjust the minimum pressure
Size；When the pressure of pilot control oil meets and exceeds regulation pressure, pilot valve 15 acts so that the control chamber of main valve plug 3
Pressure stability is adjusting pressure value, now because the area of pressure spool chamber 5 is more than the oil-feed open area of main valve plug 3, so
Only when the pressure of controlled hydraulic system increases to certain value, it just can lift main valve plug 3, main valve open, make controlled system
The pressure stability of system is in current value, simultaneously because being provided with bolster 4 in main valve plug 3, can beat on and off to main valve plug 3
Buffering is played a part of in the action closed, and makes the opening and closing of main valve plug 3 steady.According to this operation principle, you can by relatively low
Control pressure it is larger by governor pressure to obtain, because the pressure pilot valve 10 using decompression, the control pressure are easy
Realize, due to using pilot control principle, so as to realize the Stress control of big flow Superhigh Pressure Hydraulic System.
In summary, the present invention can be obtained larger by governor pressure by relatively low control pressure, due to using subtracting
The pressure pilot valve of function is pressed, the control pressure is easily realized, due to using pilot control principle, so as to realize big flow
The Stress control of Superhigh Pressure Hydraulic System, the complexity of control system is reduced, reduces fault rate, improves security.
The above is that the present invention is exemplarily described, it is clear that present invention specific implementation is not limited by aforesaid way
System, any change is whether done in its shape or structure, is entered as long as employing the inventive concept and technical scheme of the present invention
The improvement of capable various unsubstantialities, or it is not improved by the present invention design and technical scheme directly apply to other occasions
, within protection scope of the present invention.
Claims (9)
1. a kind of ultra high pressure control valve, including main valve body (1), main valve housing (2) is installed in the endoporus of main valve body (1), it is main
The main valve plug (3) that can be slided, the sealing surface of main valve plug (3) and the sealing strip of main valve housing (2) are provided with the endoporus of valve pocket (2)
It is in close contact, forms seal line or sealing surface, between main valve plug (3) and main valve housing (2) endoporus and main valve housing (2) and main valve body
(1) it is equipped with sealing ring between endoporus, it is characterised in that main valve housing (2) one end is provided with transition end cap (8), transition end cap (8)
Pressure spool chamber (5) is installed by the way of slipping into, the upper end of main valve plug (3) extend into transition end cap (8) in endoporus
In endoporus, main valve plug (3) upper surface contacts with the lower surface of pressure spool chamber (5), pressure spool chamber (5) upper end it is effective
Active area is more than the effective active area at main valve plug (3) oil inlet, and cover plate (9), cover plate are provided with above transition end cap (8)
(9) setting is fluted in, and the upper end of pressure spool chamber (5) is extend into groove, in groove top and pressure spool chamber (5)
Main spring (6) is provided between upper surface, the top of cover plate (9) is provided with the oilhole inside communication groove, cover plate (9), transition
Corresponding control oil circuit (11) is provided with end cap (8) and main valve body (1), is provided with above cover plate (9) with decompression
Pressure pilot valve (10), oilhole connect pressure pilot valve (10) with control oil circuit (11).
2. ultra high pressure control valve according to claim 1, it is characterised in that the main valve plug (3) stretches into transition end cap
(8) annular groove is provided with the periphery of one end, bolster (4) is provided with annular groove.
3. ultra high pressure control valve according to claim 1, it is characterised in that the pressure pilot valve (10) is included first
Pilot valve body (16), pilot valve (15), guide's valve pocket (17) and guide's spring spool (23), guide valve blocks (16) are arranged on cover plate
(9) upper end, guide's valve pocket (17) are fitted into the endoporus of guide valve blocks (16) by the way of sliding, and pilot valve (15) uses
The mode of slip is fitted into the endoporus of guide's valve pocket (17), and guide valve blocks (16) one end is provided with guide's spring spool (23), another
One end is provided with valve element adjusting apparatus, and pressure regulation device, guide valve blocks are provided with the endoporus of guide's spring spool (23)
(16) endoporus connects guide's spring spool (23) endoporus and the endoporus of valve element adjusting apparatus, guide by pilot control oil circuit (24)
The oilhole A and hydraulic fluid port B for connecting its endoporus are provided with valve body (16), oilhole A is connected with the oilhole on cover plate (9), hydraulic fluid port B connections
Control oil circuit (11).
4. ultra high pressure control valve according to claim 3, it is characterised in that the valve element adjusting apparatus includes valve element
End cap (13) is adjusted, valve element adjustment end cap (13) is fixedly connected on one end of guide valve blocks (16), valve element adjusting bolt with bolt
(12) in the screwed hole of valve element adjustment end cap (13), locking nut (14) is in valve element adjusting bolt (12).
5. ultra high pressure control valve according to claim 3, it is characterised in that the pressure regulation device includes guide
Spring (20), guide's spring base (21) and guide's valve seat (22), guide's spring base (21) and guide's valve seat (22) are mounted in first guided missile
The both ends of spring sleeve (23) endoporus, the both ends of guide's spring (20) are close with guide's spring base (21) and guide's valve seat (22) respectively
Contact, pressure adjustment blind nut (19) are mounted in the other end of guide's spring spool (23), and pressure adjusting bolt (18) is adjusted mounted in pressure
In the endoporus of whole blind nut (19).
6. ultra high pressure control valve according to claim 1, it is characterised in that the main spring (6) is interior with cover plate (9)
Groove top surface between be provided with main spring seat (7).
7. ultra high pressure control valve according to claim 1, it is characterised in that the inner hole sleeve of the transition end cap (8) exists
On the face of cylinder of main valve housing (2) one end, and seal is provided between the endoporus of transition end cap (8) and main valve housing (2) face of cylinder.
8. ultra high pressure control valve according to claim 1, it is characterised in that the periphery of the pressure spool chamber (5)
Seal is provided between the endoporus of transition end cap (8).
9. ultra high pressure control valve according to claim 2, it is characterised in that the bolster (4) includes buffer substrate tablet
(4.5) side of, buffer spring (4.3), buffer bar (4.2) and pad (4.1), buffer substrate tablet (4.5) and pad (4.1) is provided with
The rectangular channel of annular groove can be caught in, buffer spring (4.3) is arranged in the shoulder hole (4.4) of buffer substrate tablet (4.5), buffer bar
(4.2) it is enclosed in buffer spring (4.3), the lower surface of the larger diameter end of buffer bar (4.2) pressed against buffer spring (4.3), pad
Piece (4.1) is pressed on the upper surface of the larger diameter end of buffer bar (4.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780511.9A CN106122152B (en) | 2016-08-31 | 2016-08-31 | Ultra high pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780511.9A CN106122152B (en) | 2016-08-31 | 2016-08-31 | Ultra high pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106122152A CN106122152A (en) | 2016-11-16 |
| CN106122152B true CN106122152B (en) | 2017-11-21 |
Family
ID=57273418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610780511.9A Active CN106122152B (en) | 2016-08-31 | 2016-08-31 | Ultra high pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122152B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594225A (en) * | 2019-09-26 | 2019-12-20 | 山东泰丰智能控制股份有限公司 | Multistage drive hydraulic valve control structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3977438A (en) * | 1975-10-02 | 1976-08-31 | Willis Oil Tool Co. | Means to reset an actuator pilot valve |
| DE2929338A1 (en) * | 1979-07-20 | 1981-02-05 | Wessel Hydraulik | Hydraulic motor control valve - includes body of same dia. as spring-supported guide plunger |
| CN103090070B (en) * | 2011-11-02 | 2015-12-16 | 广西柳工机械股份有限公司 | Piloted reducer |
| CN103115187B (en) * | 2013-01-28 | 2015-03-11 | 南京理工大学 | High-flow high-pressure pneumatic switch valve |
| CN205918680U (en) * | 2016-08-31 | 2017-02-01 | 山东泰丰液压股份有限公司 | Superhigh pressure pressure control valve |
-
2016
- 2016-08-31 CN CN201610780511.9A patent/CN106122152B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106122152A (en) | 2016-11-16 |
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Address after: 272001 Shandong city of Jining province high tech Zone Haichuan Road No. 66 Patentee after: Shandong Taifeng intelligent control Limited by Share Ltd Address before: 272001 Shandong city of Jining province high tech Zone Haichuan Road No. 66 Patentee before: Shandong Taifeng Hydraulic Co., Ltd. |
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