CN205806055U - A kind of keying buffering hydraulic super-pressure hydraulic control check valve - Google Patents
A kind of keying buffering hydraulic super-pressure hydraulic control check valve Download PDFInfo
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- CN205806055U CN205806055U CN201620500186.1U CN201620500186U CN205806055U CN 205806055 U CN205806055 U CN 205806055U CN 201620500186 U CN201620500186 U CN 201620500186U CN 205806055 U CN205806055 U CN 205806055U
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- valve
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Abstract
The open one of this utility model opens and closes buffering hydraulic super-pressure hydraulic control check valve, and low pressure oil-in connects the first oil-out by first passage, and high pressure oil-in connects high-pressure oil outlet by second channel, and control oil oil-in is by third channel connection control oil oil-out；Interior intracavity arranges plug-in type hydraulic pressure supertension check valve.The reverse open function of this utility model, can greatly alleviate supertension fluid to the erosion phenomenon of valve and gasification phenomenon；Use ripe automated control technology, thus by perfect with control for most 70～200MPa hydraulic pressure supertension application functional promotions.This utility model is used on 150MPa superelevation pressure break stone machine, employ keying buffering and open and close buffering hydraulic super-pressure hydraulic control check valve, allow and split stone machine and split direct pressure release when stone is return, efficiency (by original 10 minute reduce to 90 second) is not only greatly improved, also alarming erosion and gasification phenomenon are solved, more importantly, thoroughly solve pipeline and damp the fever phenomenon caused.
Description
Technical field
This utility model relates to check valve technical field, specifically a kind of keying buffering hydraulic supertension fluid-control one-way
Valve.
Background technology
In the Hydraulic Field of normal pressures (under 50MPa), we it has been generally acknowledged that hydraulic oil is incompressible, but along with pressure
The increase of power, when particularly pressure reaches 200MPa, hydraulic oil can have more than the decrement of more than 10%, when surpassing of hydraulic system
During the direct pressure release of high pressure, owing to pressure reduction is too big, the fluid that this part is compressed can release with high flow velocity, not only can be to valve
Part produces erosion, also allows fluid produce gasification phenomenon, and the increase of a large amount of bubbles in fluid, always has minority bubble and enters and pressurize
Circulation, forms the most miniature " bomb " and is pressed quick-fried in hydraulic system, producing extra high voltage system and destroy.This phenomenon,
Especially prominent in the incipient stage of pressure release, it is a problem extremely having a headache of hydraulic pressure supertension application, in order to avoid this asks
Topic, generally requires on leakage passage applying supertension back pressure, not only increases cost, also allows draining time lengthening.
At hydraulic pressure supertension field, the ultra-high pressure solenoid valve can bought in the market, maximum normal working pressure
Can only achieve 70MPa, when higher pressure, do not have corresponding solenoid directional control valve product, 70MPa hydraulic pressure extra high voltage system realizes certainly
Dynamicization is extremely difficult, has particularly gone up the hydraulic pressure extra high voltage system of more than 100MPa, the most all cannot use conventional hydraulic loop hands
Duan Shixian automatically controls.
Buffering hydraulic super-pressure hydraulic control check valve is opened and closed, to solve present in prior art it is accordingly required in particular to a kind of
Problem.
Utility model content
The purpose of this utility model is to provide for a kind of keying buffering hydraulic super-pressure hydraulic control check valve, solves existing
Problem present in technology.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of keying buffering hydraulic super-pressure hydraulic control check valve, including the first valve body, described first valve body arranges low pressure
Oil-in, low pressure oil-out, high pressure oil-in, high-pressure oil outlet, control oil oil-in, control oil oil-out, plug-in type hydraulic pressure superelevation
Pressure check valve, inner chamber and push rod, described low pressure oil-in connects the first oil-out by first passage, and described high pressure oil-in leads to
Crossing second channel connection high-pressure oil outlet, described control oil oil-in is by third channel connection control oil oil-out；Described interior intracavity
Arranging plug-in type hydraulic pressure supertension check valve, described plug-in type hydraulic pressure supertension check valve includes the second valve body, described second valve
Internal oil-in and the oil-out of being provided with, described oil-in and oil-out be vertically arranged, and described oil-in is provided with check-valve port,
Described oil-out is provided with nonreturn valve core, and described nonreturn valve core comprises spring, spring base and steel ball, and one end of described spring is fixed
Being arranged on spring base, the other end of described spring arranges steel ball, and the elastic force of described spring makes steel ball be pressed in check-valve port；
Described first passage communication with cavity, described second channel connection oil-out, one end of described push rod is slidably arranged in third channel
On, the other end of described push rod is slidably arranged in oil-in, and the slip of described push rod makes the push rod other end have in oil-in
There is a detent position closing oil-in and realize the open position of oil-in and inner space.
In this utility model, the end of the other end of described push rod is provided with the cambered surface part suitable with steel ball.
In this utility model, the hardness of described push rod cambered surface part is less than the hardness of steel ball.
In this utility model, on described valve body, arranging inclined-plane at check-valve port, the elastic force of described spring makes steel ball pressure
Tight on the inclined-plane of check-valve port.
In this utility model, described valve body hardness between HRC27～30, described steel ball surface hardness at HRC53～
Between 58.
In this utility model, described valve body is made up of 42CrNiMoA material, and described valve body δ b is not less than 980MPa, δ s
Not less than 835MPa.
In this utility model, also including the ultrahigh pressure joint being connected with fuel feed hole, the hardness of described ultrahigh pressure joint exists
Between HRC23～25.
In this utility model, described spring base is fastened in valve body.
Beneficial effect
1, possess keying buffering and open and close the reverse open function of buffering hydraulic super-pressure hydraulic control check valve, can greatly alleviate super
High-voltage oil liquid is to the erosion phenomenon of valve and gasification phenomenon.
2, open and close buffering and open and close the reverse open function of buffering hydraulic super-pressure hydraulic control check valve, control chamber it is desirable that low
Pressure, and under lower pressure, this utility model is entirely capable of using ripe automated control technology, thus will most 70～
The functional promotion of 200MPa hydraulic pressure supertension application and control are perfect.
3, this utility model is used on 150MPa superelevation pressure break stone machine, employs keying buffering and opens and closes buffering hydraulic supertension
Hydraulic control one-way valve, allows and splits stone machine and split direct pressure release when stone is return, efficiency is not only greatly improved and (was reduced to by original 10 minutes
90 seconds), also solve alarming erosion and gasification phenomenon, more importantly, the heating allowing the damping of original pipeline cause is existing
(change machine and need 20 meters of long flexible pipes, and the flexible pipe of such high pressure only has external import as being solved, and do not have
Big orifice sebific duct, latus rectum only has 4.7 millimeters, but flexible pipe needs frequently to move, and quantity can not be too much).
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model；
Fig. 2 is the rearview of Fig. 1；
The structural representation of the plug-in type hydraulic pressure supertension check valve that Fig. 3 this utility model uses；
Fig. 4 this utility model realizes structural representation during multiple function.
In figure: 1, low pressure oil-in；2, low pressure oil-out；3, high pressure oil-in；4, high-pressure oil outlet；5, control oil oil-feed
Mouthful；6, control oil oil-out；7, the second valve body；8, oil-in；9, oil-out；10, spring；11, spring base；12, steel ball；13,
One valve body；14, plug-in type hydraulic pressure supertension check valve；15, push rod；16, inner chamber；17, inclined-plane；18, cambered surface part.
Detailed description of the invention
In the view of whole accompanying drawings, corresponding reference marks represents corresponding parts.
This utility model:
(1) low pressure oil-in 1 is communicated by first passage with low pressure oil-out 2, belongs to low-pressure channel；High pressure oil-in 3 He
High-pressure oil outlet 4 is communicated by second channel, belongs to supertension passage；Control oil oil-in 5 and control oil oil-out 6 are by threeway
Road communicates, for controlling pipeline.
(2) equipped with plug-in type hydraulic pressure supertension check valve between first passage and second channel, plug-in type hydraulic pressure super high-pressure single to
The sealed steel ball 12 of valve is under back-moving spring 10 and push rod operate respectively, it is achieved closes and opens.
(3) push rod is as the operating mechanism of plug-in type hydraulic pressure supertension check valve sealed steel ball 12, by third channel and first
The back pressure oil of passage operates respectively, can move reciprocatingly in valve pocket.And the sphere of push rod end, one is that steel ball 12 is had centering
Effect, two is the lifting surface area that can add big steel ball 12, and it is less than the hardness of steel ball 12 to add sphere, can ensure not to a greater extent
Injure the sealing surfaces of steel ball 12, the sealing member on push rod, can prevent fluid between first passage and third channel from ganging up.
(4) superhigh pressure sealing face and at two, can prevent ultrahigh-pressure hydraulic oil from leaking and interior between first passage and second channel
Leakage.
(5) push rod is in place of steel ball 12, has a conical surface, and between conical surface maximum end and hole, (diameter 8 millimeters) has one and be
The annular gap of 0.2 millimeter, a diameter of 6 millimeters of smallest end, when push rod is after steel ball 12 direction moves 5.5 millimeters, can be by valve body
The convex shoulder of endoporus blocks, and now opening is maximum, can guarantee that the flow area of 6 latus rectums.Push rod has a piston by third channel end
Structure, a diameter of 40 millimeters.Sealing member on piston is chosen by 35MPa pressure.
(6) owing to opening and closing the pressure of keying buffering hydraulic super-pressure hydraulic control check valve 200MPa to be born of buffering, material I
Have employed 42CrNiMoA+ forging, and carried out modulation treatment, δ b connects not less than 50MPa, hydraulic fluid port not less than 980MPa, δ s
(this uses the structure of maturation for us on hydraulic pressure extra high voltage system, and two matched close to be all designed to hard sealing structure
Front cover difference of hardness is also the successful experience that we are got by practice principle)
(7) opening and closing the keying buffering hydraulic super-pressure hydraulic control check valve of buffering, we have also been made many examining in versatility
Consider, do not process low pressure oil-out 2, high-pressure oil outlet 4, control oil oil-out 6, can be as line-mounted valve, by low pressure oil-in
1, high pressure oil-in 3, control oil oil-in 5 block, then low pressure oil-out 2, high-pressure oil outlet 4, control oil oil-out 6 are processed
Come, then can connect valve as format.Plug-in type designs, and also can directly be loaded by valve in valve block, provides convenient for Integration Design.
Buffer structure spool is changed into the spool without buffer structure, just can use its forward open function, for low pressure and mass flow, superelevation
The Automated condtrol demand of pressure low discharge provides condition.
Operation principle:
(1) open and close buffering keying buffering hydraulic super-pressure hydraulic control check valve to close:
When control oil oil-in 5 and control oil oil-out 6 no pressure oil, push rod (is more than under first passage back pressure effect
0.5MPa, this is the experience accumulation in our hydraulic pressure extra high voltage system pressure release loop design and use, so we cancel
Push rod back-moving spring 10) it is in shown position, the hydraulic pressure of 200MPa, steel ball 12 now can be applied with at second channel
Under spring 10 power effect, move towards push rod direction, then near plug-in type hydraulic pressure supertension check valve seal receptacle surface, and
Under the hydraulic pressure hyperpressure effect less than 200MPa, fit tightly with seal receptacle surface, thus play sealing effectiveness, will be super
High-voltage oil liquid intercepts at second channel end.Now, hydraulic pressure supertension check valve is in supertension "Off" state.
(2) open and close buffering keying buffering hydraulic super-pressure hydraulic control check valve forward to open:
When control oil oil-in 5 and control oil oil-out 6 no pressure oil, first passage can connect the pressure oil of 35MPa, top
No matter bar is in any position, all can move back to third channel end, and the pressure oil of such first passage can overcome the resistance of spring 10
Power, flows to second channel, owing to being that band opens and closes pooling feature, is mainly used in hydraulic pressure supertension pressure release, and forward passage flow duct area is little,
This valve is not suitable for forward and opens.But after being replaced with non-buffered push rod, forward flow area is replied normal, it is possible to use this merit
Energy.
(3) open and close buffering and open and close the reverse unlatching of buffering hydraulic super-pressure hydraulic control check valve
Under second channel is in supertension state, first passage low pressure, when control oil oil-in 5 or control oil oil-out 6 connect
During logical control pressure oil, steel ball 12 is backed down by push rod by force, and in the moment backed down, ultrahigh-pressure hydraulic oil can produce impact greatly
Phenomenon, now the annular gap of the buffering spool conical surface 0.2 millimeter can produce the biggest throttle effect, thus limit and open moment
Hydraulic shock intensity, along with push rod moves towards second channel end under the effect controlling oil, spool flow area is gradually increased,
Throttle effect gradually weakens until reaching the flow area in clematis stem footpath.
Reversely in opening structure design, the piston diameter of push rod is 40 millimeters, and the covering diameter that steel ball 12 seals is 8 millis
Rice, area ratio is 25:1, say, that under 200MPa pressure, and the minimum pressure of opening of third channel is 8MPa.150MPa pressure
Under, it is 6MPa that the minimum pressure of third channel is opened, by that analogy.
This utility model concrete structure is:
A kind of keying buffering hydraulic super-pressure hydraulic control check valve, including the first valve body 13, the first valve body 13 arranges low pressure
Oil-in 1, low pressure oil-out 2, high pressure oil-in 3, high-pressure oil outlet 4, control oil oil-in 5, control oil oil-out 6, plug-in type liquid
Pressure supertension check valve 14, inner chamber 16 and push rod 15, low pressure oil-in 1 connects the first oil-out 9 by first passage, and height is pressed into
Hydraulic fluid port 3 connects high-pressure oil outlet 4 by second channel, and control oil oil-in 5 is by third channel connection control oil oil-out 6；Inner chamber
Inside arranging plug-in type hydraulic pressure supertension check valve 14, plug-in type hydraulic pressure supertension check valve includes the second valve body 7, the second valve body 7
Inside being provided with oil-in 8 and oil-out 9, oil-in 8 and oil-out 9 to be vertically arranged, oil-in 8 is provided with check-valve port, fuel-displaced
Mouth 9 is provided with nonreturn valve core, and nonreturn valve core comprises spring 10, spring base 11 and steel ball 12, and one end of spring 10 is fixedly installed on
On spring base 11, the other end of spring 10 arranges steel ball 12, and the elastic force of spring 10 makes steel ball 12 be pressed in check-valve port；First
Channel connection inner chamber, second channel connection oil-out 9, one end of push rod is slidably arranged on third channel, the other end of push rod
Being slidably arranged in oil-in 8, the slip of push rod makes the push rod other end have an envelope closing oil-in 8 in oil-in 8
Closed position and the open position realizing oil-in 8 and inner space.
In preferred embodiment, the end of the other end of push rod is provided with the cambered surface part 18 suitable with steel ball 12,
And inclined-plane 17 can be set on valve body 1 at check-valve port, the elastic force of spring 3 makes steel ball 4 be pressed on the inclined-plane 17 of check-valve port
On, reach preferable using effect.
In the embodiment of this utility model extension, the compound painting of super-hydrophobic oleophobic can be sprayed in the outside of the first valve body 13
Layer 19, makes valve body possess self-cleaning function, in using for a long time, it is possible to ensure the sanitary grade of valve body 1；Further
, ultraviolet germicidal lamp 20 can be set by the way of viscose is bonding in the outside of valve body 1, after a long time use, can be spy
Fixing time and open ultraviolet germicidal lamp 10, big is convenient to this utility model plug-in type hydraulic pressure supertension check valve surrounding space
Carry out the effect sterilized, require higher place at sanitary grade, reach preferable using effect.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use this reality
With novel.These embodiments obviously easily can be made various amendment by person skilled in the art, and saying at this
Bright General Principle is applied in other embodiments without through performing creative labour.Therefore, on this utility model is not limited to
Stating embodiment, those skilled in the art are according to announcement of the present utility model, the improvement made without departing from this utility model category
All should be within protection domain of the present utility model with amendment.
Claims (8)
1. one kind opens and closes buffering hydraulic super-pressure hydraulic control check valve, it is characterised in that: include the first valve body, on described first valve body
Low pressure oil-in, low pressure oil-out, high pressure oil-in, high-pressure oil outlet, control oil oil-in, control oil oil-out, plug-in type are set
Hydraulic pressure supertension check valve, inner chamber and push rod, described low pressure oil-in connects the first oil-out, described high pressure by first passage
Oil-in connects high-pressure oil outlet by second channel, and described control oil oil-in is by third channel connection control oil oil-out；Institute
Stating interior intracavity and arrange plug-in type hydraulic pressure supertension check valve, described plug-in type hydraulic pressure supertension check valve includes the second valve body, institute
Being provided with oil-in and oil-out in stating the second valve body, described oil-in and oil-out are vertically arranged, and described oil-in is provided with
Check-valve port, described oil-out is provided with nonreturn valve core, and described nonreturn valve core comprises spring, spring base and steel ball, described spring
One end be fixedly installed on spring base, the other end of described spring arranges steel ball, and the elastic force of described spring makes steel ball be pressed on
In check-valve port；Described first passage communication with cavity, described second channel connection oil-out, slides and arranges in one end of described push rod
On third channel, the other end of described push rod is slidably arranged in oil-in, and the slip of described push rod makes the push rod other end exist
There is in oil-in a detent position closing oil-in and realize the open position of oil-in and inner space.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 1, it is characterised in that: described push rod another
The end of one end is provided with the cambered surface part suitable with steel ball.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 2, it is characterised in that: described push rod cambered surface
The hardness of part is less than the hardness of steel ball.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 1, it is characterised in that: at described valve body
On, inclined-plane is set at check-valve port, the elastic force of described spring makes steel ball be pressed on the inclined-plane of check-valve port.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 4, it is characterised in that: described valve body hardness
Between HRC27～30, described steel ball surface hardness is between HRC53～58.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 5, it is characterised in that: described valve body by
42CrNiMoA material is made, and described valve body δ b is not less than 835MPa not less than 980MPa, δ s.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 6, it is characterised in that: also include and oil-feed
The ultrahigh pressure joint that hole connects, the hardness of described ultrahigh pressure joint is between HRC23～25.
Keying buffering hydraulic super-pressure hydraulic control check valve the most according to claim 1, it is characterised in that: described spring base card
It is located in valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500186.1U CN205806055U (en) | 2016-05-26 | 2016-05-26 | A kind of keying buffering hydraulic super-pressure hydraulic control check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500186.1U CN205806055U (en) | 2016-05-26 | 2016-05-26 | A kind of keying buffering hydraulic super-pressure hydraulic control check valve |
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| Publication Number | Publication Date |
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| CN205806055U true CN205806055U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620500186.1U Active CN205806055U (en) | 2016-05-26 | 2016-05-26 | A kind of keying buffering hydraulic super-pressure hydraulic control check valve |
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| CN (1) | CN205806055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859665A (en) * | 2017-11-24 | 2018-03-30 | 张宏伟 | A kind of fluid control pressure valve group |
-
2016
- 2016-05-26 CN CN201620500186.1U patent/CN205806055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859665A (en) * | 2017-11-24 | 2018-03-30 | 张宏伟 | A kind of fluid control pressure valve group |
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