CN205918680U - Superhigh pressure pressure control valve - Google Patents
Superhigh pressure pressure control valve Download PDFInfo
- Publication number
- CN205918680U CN205918680U CN201621007212.3U CN201621007212U CN205918680U CN 205918680 U CN205918680 U CN 205918680U CN 201621007212 U CN201621007212 U CN 201621007212U CN 205918680 U CN205918680 U CN 205918680U
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- China
- Prior art keywords
- valve
- pressure
- guide
- endoporus
- main valve
- Prior art date
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a superhigh pressure pressure control valve belongs to hydraulic control system technical field, including the main valve body, install the main valve cover in the hole of the main valve body, it can gliding main valve core to be provided with in the hole of main valve cover, main valve cover one end is provided with the transition end cover, adopt the mode that slips into to install pressure in the transition end cover hole and amplify the case, main valve core up end and pressure amplify the lower end face contaction of case, effective active area that pressure amplifies the case upper end is greater than effective active area that the main valve core oil inlet was located, the apron is installed to transition end cover top, be provided with the main spring between the enlarged case up end of recess top and pressure of apron, the pressure pilot valve that has the decompression function is installed to the apron top. The utility model discloses can obtain the great pressure of being controlled through lower controlled pressure, and the controlled pressure realizes easily, can realize the pressure control of large -traffic super high pressure hydraulic system in addition, reduced control system's complexity, improved the security.
Description
Technical field
This utility model belongs to hydraulic control system technical field and in particular to a kind of ultra high pressure control valve.
Background technology
At present, apply substantial amounts of hydraulic pressure adjusting control valve in hydraulic mechanical equipment, in these valves, some are Direct Action Types
Structure is it is adaptable to the less hydraulic system of flow；Some are pilot-operated type structures it is adaptable to the larger hydraulic system of flow.Currently
The hydraulic pressure regulating valve of these forms due to itself reasons in structure it is impossible to control Superhigh Pressure Hydraulic System pressure, 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 the demand of working ability and processing technique, the demand to big flow Superhigh Pressure Hydraulic System and big flow ultrahigh-pressure hydraulic element
Also get more and more, the also more and more higher of the requirement to its performance.
Utility model content
The purpose of this utility model is to provide a kind of ultra high pressure control valve, can easily and safely adjust the big stream of control
The pressure of amount supertension (hydraulic system pressure is in more than 50mpa) hydraulic system.
This utility model ultra high pressure control valve, including main valve body, is provided with main valve housing, main valve in the endoporus of main valve body
It is provided with the main valve plug that can slide, the sealing surface of main valve plug is in close contact with the sealing strip of main valve housing, is formed in the endoporus of set
Seal line or sealing surface, are equipped with sealing ring, main valve housing one and main valve housing and main valve body endoporus between main valve plug and endoporus
End is provided with transition end cap, is provided with pressure and amplifies valve element, the upper end of main valve plug in transition end cap endoporus by the way of slipping into
It extend in the endoporus of transition end cap, the lower surface that valve element is amplified with pressure in main valve plug upper surface contacts, pressure amplifies on valve element
The effective active area at end is more than the effective active area at main valve plug oil-in, and on transitioning end lid, side is provided with cover plate, cover plate
Interior setting is fluted, and the upper end that pressure amplifies valve element extend in groove, groove top and pressure amplify valve element upper surface it
Between be provided with main spring, the top of cover plate is provided with the oilhole within communication groove, setting in cover plate, transition end cap and main valve body
There is corresponding oil circuit control, the pressure pilot valve with decompression is installed above cover plate, oilhole connects pressure with oil circuit control
Power pilot valve.
Described main valve plug stretches into and is provided with cannelure on the periphery of transition end cap one end, is provided with bolster in cannelure,
The effect of buffering is played in the action that main valve plug can be opened and closed, and makes the opening and closing of main valve plug steady.
Described pressure pilot valve includes guide valve blocks, pilot valve, guide's valve pocket and guide's spring spool, and guide valve blocks are pacified
It is contained in the upper end of cover plate, in the endoporus loading guide valve blocks by the way of sliding, pilot valve is using slip for guide's valve pocket
Mode loads in 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, is provided with pressure regulation device in the endoporus of guide's spring spool, guide valve blocks endoporus passes through pilot control oil communication
Guide's spring spool endoporus and the endoporus of valve element adjusting apparatus, guide valve blocks are provided with the oilhole a connecting its endoporus and hydraulic fluid port
B, oilhole a is connected with the oilhole on cover plate, and hydraulic fluid port b connects oil circuit control.Using the pressure pilot valve 10 of decompression, this control
Pressure is easily realized, due to using pilot control principle, such that it is able to realize the Stress control of big flow Superhigh Pressure Hydraulic System.
Described valve element adjusting apparatus include valve element adjustment end cap, and valve element adjustment end cover bolt is fixedly connected on guide valve blocks
One end, valve element adjust screw rod be contained in valve element adjust end cap screw thread in the hole, locking nut be contained in valve element adjustment screw rod on.
Described 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 contained in the two ends of guide's spring spool endoporus, and the two ends of guide's spring are closely connect with guide's spring base and guide's valve seat respectively
Touch, pressure adjusts the other end that blind nut is contained in guide's spring spool, pressure adjusts screw rod and is contained in the endoporus that pressure adjusts blind nut.
It is provided with main spring seat so that main spring is more steady between groove top surface in described main spring and cover plate.
The inner hole sleeve of described 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
It is provided with sealing member between cylinder, prevent hydraulic fluid leak.
It is provided with sealing member between the periphery of described pressure amplification valve element and the endoporus of transition end cap, prevent hydraulic oil from letting out
Leakage.
Described bolster includes buffer substrate tablet, buffer spring, buffer bar and pad, and the side of buffer substrate tablet and pad all has can
Snap in the rectangular channel of cannelure, buffer spring is arranged on the ladder in the hole of buffer substrate tablet, buffer bar is enclosed within 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, by the active force of fluid, make the opening and closing of primary spools steady using the buffering of buffer spring.
Compared with prior art, the utility model has the advantage of:
Can be obtained by relatively low control pressure larger by governor pressure, due to the pressure guide using decompression
Valve, this control pressure is easily realized, due to using pilot control principle, such that it is able to realize big flow Superhigh Pressure Hydraulic System
Stress control, reduces the complexity of control system, reduces fault rate, improve safety.
Brief description
Fig. 1 is hydraulic schematic diagram of the present utility model；
Fig. 2 is the enlarged diagram at h；
In figure: 1, 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 amplify valve element, 6, main spring, 7, main spring seat, 8, transition end cap, 9, lid
Plate, 10, pressure pilot valve, 11, oil circuit control, 12, valve element adjustment screw rod, 13, valve element adjustment end cap, 14, locking nut, 15,
Pilot valve, 16, guide valve blocks, 17, guide's valve pocket, 18, pressure adjustment screw rod, 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.
Specific embodiment
Below against accompanying drawing, by the description to optimum embodiment, specific embodiment of the present utility model is made into one
Step detailed description.
Ultra high pressure control valve as shown in Figure 1, including main valve body 1, is provided with main valve housing 2 in the endoporus of main valve body 1,
It is provided with the main valve plug 3 that can slide, the sealing surface of main valve plug 3 is closely connect with the sealing strip of main valve housing 2 in the endoporus of main valve housing 2
Touch, form seal line or sealing surface, between main valve plug 3 and endoporus, be equipped with sealing and main valve housing 2 and main valve body 1 endoporus between
Circle, main valve housing 2 one end is provided with transition end cap 8, is provided with pressure and amplifies valve element in transition end cap 8 endoporus by the way of slipping into
5, the upper end of main valve plug 3 extend in the endoporus of transition end cap 8, and the lower surface that valve element 5 is amplified with pressure in main valve plug 3 upper surface connects
Touch, pressure amplifies the effective active area of valve element 5 upper end more than the effective active area at main valve plug 3 oil-in, transition end cap 8
Top is provided with cover plate 9, and in cover plate 9, setting is fluted, and the upper end that pressure amplifies valve element 5 extend in groove, in groove top
It is provided with main spring 6 and pressure amplification valve element 5 upper surface between, the top of cover plate 9 is provided with the oilhole within communication groove, lid
It is provided with corresponding oil circuit control 11 in plate 9, transition end cap 8 and main valve body 1, be provided with above cover plate 9 and there is decompression
Pressure pilot valve 10, oilhole connects pressure pilot valve 10 with oil circuit control 11.
Main valve plug 3 stretches into and is provided with cannelure on the periphery of transition end cap 8 one end, is provided with bolster 4 in cannelure, can
Play the effect of buffering with the action that main valve plug 3 is opened and closed, 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, guide's valve pocket 17 using slide by the way of load guide valve blocks 16 endoporus in, pilot valve
Core 15 using slide by the way of load guide's valve pocket 17 endoporus in, guide valve blocks 16 one end be provided with guide's spring spool 23,
The other end is provided with valve element adjusting apparatus, is provided with pressure regulation device, guide valve blocks 16 in the endoporus of guide's spring spool 23
Endoporus connects the endoporus of guide's spring spool 23 endoporus and valve element adjusting apparatus by pilot control oil circuit 24, on guide valve blocks 16
It is provided with the oilhole a and hydraulic fluid port b connecting its endoporus, oilhole a is connected with the oilhole on cover plate 9, hydraulic fluid port b connects oil circuit control 11,
Using the pressure pilot valve 10 of decompression, this control pressure is easily realized, due to using pilot control principle, such that it is able to reality
The Stress control of existing big flow Superhigh Pressure Hydraulic System.
Valve element adjusting apparatus include 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 adjusts screw rod 12 and is contained in the screw thread in the hole that valve element adjusts end cap 13, and locking nut 14 is contained 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 contained in the two ends of guide's spring spool 23 endoporus, the two ends of guide's spring 20 respectively with guide's spring base 21 and guide
Valve seat 22 is in close contact, and pressure adjusts the other end that blind nut 19 is contained in guide's spring spool 23, and pressure adjustment screw rod 18 is contained in pressure
Power adjusts in the endoporus of blind nut 19.
It is provided with main spring seat 7 so that main spring 6 is more steady between groove top surface in main spring 6 and cover plate 9.
The inner hole sleeve of transition end cap 8 is on the face of cylinder of main valve housing 2 one end, and the endoporus of transition end cap 8 and main valve housing 2 circle
It is provided with sealing member between cylinder, prevent hydraulic fluid leak.
It is provided with sealing member between the periphery of pressure amplification valve element 5 and the endoporus of transition end cap 8, prevent 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 all have the rectangular channel that can snap in cannelure, 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 within 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 active forces being subject to fluid, make the opening and closing of primary spools 3 steady using the buffering of buffer spring 4.3.
The work process of this utility model ultra high pressure valve scheme is as follows: each zero in novel ultrahigh pressure pressure valve scheme
After the completion of part assembling, pilot control oil enters the oil-feed of pressure pilot valve 10 through oil circuit control 11 and pilot control oil circuit 24
Chamber, main valve plug 3 control chamber and pilot valve 15 control chamber, the oily pressure of pilot control acts on the front end of pilot valve 15 simultaneously
Hydraulic fluid port b through excess pressure pilot valve 10 acts on the upper surface that pressure amplifies valve element 5, adjusts the pressure adjustment of pressure pilot valve 10
Screw rod 18, when making the adjusting force of pressure pilot valve 10 reach a certain setting value, the hydraulic coupling that this adjusting force can be generated by is referred to as adjusting
Section pressure, when the pressure of pilot control oil is less than and adjusts pressure, pilot valve 15 is failure to actuate, and main valve plug 3 lifts, and leaves sealing
Face, main valve open, the pressure of controlled system is in minimal pressure force value, and adjusting spool adjustment screw rod 12 can adjust this minimum pressure
Size；When the pressure of pilot control oil meets and exceeds regulation pressure, pilot valve 15 action is so that main valve plug 3 control chamber
Pressure stability adjust pressure value, now due to pressure amplify valve element 5 area be more than main valve plug 3 oil-feed open area, institute
Only main valve plug 3 when the pressure of controlled hydraulic system increases to certain value, just can be made to lift, main valve open, make controlled
The pressure stability of system is in current value, simultaneously because being provided with bolster 4 in main valve plug 3, main valve plug 3 can be opened and
The effect of buffering is played 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 come to obtain larger by governor pressure, due to the pressure pilot valve 10 using decompression, this control pressure is held
Easily realize, due to using pilot control principle, such that it is able to realize the Stress control of big flow Superhigh Pressure Hydraulic System.
In sum, this utility model can be obtained by relatively low control pressure larger by governor pressure, due to adopting
With the pressure pilot valve of decompression, this control pressure is easily realized, due to using pilot control principle, big such that it is able to realize
The Stress control of flow Superhigh Pressure Hydraulic System, reduces the complexity of control system, reduces fault rate, improve safety
Property.
The above is this utility model to be exemplarily described it is clear that this utility model implements is not subject to above-mentioned side
The restriction of formula, whether does any change in its shape or structure, if employ method of the present utility model design and
The improvement of the various unsubstantialities that technical scheme is carried out, or not improved by of the present utility model design and technical scheme directly should
For other occasions, all within protection domain of the present utility model.
Claims (9)
1. a kind of ultra high pressure control valve, including main valve body (1), is provided with main valve housing (2) in the endoporus of main valve body (1), main
It is provided with the main valve plug (3) that can slide, the sealing strip of the sealing surface of main valve plug (3) and main valve housing (2) in the endoporus of valve pocket (2)
It is in close contact, form seal line or sealing surface, main valve plug (3) is and endoporus between and main valve housing (2) and main valve body (1) endoporus between
It is equipped with sealing ring it is characterised in that main valve housing (2) one end is provided with transition end cap (8), using cunning in transition end cap (8) endoporus
The mode entering is provided with pressure and amplifies valve element (5), and the upper end of main valve plug (3) extend in the endoporus of transition end cap (8), main valve plug
(3) lower surface that valve element (5) is amplified with pressure in upper surface contacts, and the effective active area that pressure amplifies valve element (5) upper end is more than
Effective active area at main valve plug (3) oil-in, is provided with cover plate (9) above transition end cap (8), cover plate is provided with (9)
Groove, the upper end that pressure amplifies valve element (5) extend in groove, amplifies between valve element (5) upper surface in groove top and pressure
It is provided with main spring (6), the top of cover plate (9) is provided with the oilhole within communication groove, cover plate (9), transition end cap (8) and master
It is provided with corresponding oil circuit control (11) in valve body (1), the pressure pilot valve with decompression is installed above cover plate (9)
(10), oilhole connects pressure pilot valve (10) with oil circuit control (11).
2. ultra high pressure control valve according to claim 1 is it is characterised in that described main valve plug (3) stretches into transition end cap
(8) it is provided with cannelure on the periphery of one end, in cannelure, be provided with bolster (4).
3. ultra high pressure control valve according to claim 1 is it is characterised in that described 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, in the endoporus loading guide valve blocks (16) by the way of sliding, pilot valve (15) adopts guide's valve pocket (17)
The mode slided loads in 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, is provided with pressure regulation device, guide valve blocks in the endoporus of guide's spring spool (23)
(16) endoporus connects the endoporus of guide's spring spool (23) endoporus and valve element adjusting apparatus, guide by pilot control oil circuit (24)
The oilhole a and hydraulic fluid port b connecting its endoporus is provided with valve body (16), oilhole a is connected with the oilhole on cover plate (9), hydraulic fluid port b connects
Oil circuit control (11).
4. ultra high pressure control valve according to claim 3 is it is characterised in that described valve element adjusting apparatus include valve element
Adjustment end cap (13), valve element adjusts one end that end cap (13) is fixedly connected on guide valve blocks (16) with bolt, and valve element adjusts screw rod
(12) it is contained in the screw thread in the hole that valve element adjusts end cap (13), locking nut (14) is contained on valve element adjustment screw rod (12).
5. ultra high pressure control valve according to claim 3 is it is characterised in that described 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 contained in first guided missile
The two ends of spring sleeve (23) endoporus, the two ends of guide's spring (20) are tight with guide's spring base (21) and guide's valve seat (22) respectively
Contact, pressure adjusts the other end that blind nut (19) is contained in guide's spring spool (23), and pressure adjustment screw rod (18) is contained in pressure and adjusts
In the endoporus of whole blind nut (19).
6. ultra high pressure control valve according to claim 1 is it is characterised in that described 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 is it is characterised in that the inner hole sleeve of described transition end cap (8) exists
On the face of cylinder of main valve housing (2) one end, and it is provided with sealing member 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 is it is characterised in that described pressure amplifies the periphery of valve element (5)
It is provided with sealing member and the endoporus of transition end cap (8) between.
9. ultra high pressure control valve according to claim 2 is it is characterised in that described bolster (4) includes buffer substrate tablet
(4.5), buffer spring (4.3), buffer bar (4.2) and pad (4.1), the side of buffer substrate tablet (4.5) and pad (4.1) all has
The rectangular channel of cannelure can be snapped 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 within 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 |
|---|---|---|---|
| CN201621007212.3U CN205918680U (en) | 2016-08-31 | 2016-08-31 | Superhigh pressure pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007212.3U CN205918680U (en) | 2016-08-31 | 2016-08-31 | Superhigh pressure pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918680U true CN205918680U (en) | 2017-02-01 |
Family
ID=57869854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621007212.3U Withdrawn - After Issue CN205918680U (en) | 2016-08-31 | 2016-08-31 | Superhigh pressure pressure control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918680U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122152A (en) * | 2016-08-31 | 2016-11-16 | 山东泰丰液压股份有限公司 | Ultra high pressure control valve |
| CN107504201A (en) * | 2017-10-09 | 2017-12-22 | 中国矿业大学 | A kind of dual spring high accuracy hysteresis type pressure-control valve |
-
2016
- 2016-08-31 CN CN201621007212.3U patent/CN205918680U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122152A (en) * | 2016-08-31 | 2016-11-16 | 山东泰丰液压股份有限公司 | Ultra high pressure control valve |
| CN107504201A (en) * | 2017-10-09 | 2017-12-22 | 中国矿业大学 | A kind of dual spring high accuracy hysteresis type pressure-control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170201 Effective date of abandoning: 20171121 |