CN206830882U - A kind of super-pressure overlapping two - Google Patents
A kind of super-pressure overlapping two Download PDFInfo
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- CN206830882U CN206830882U CN201720480022.1U CN201720480022U CN206830882U CN 206830882 U CN206830882 U CN 206830882U CN 201720480022 U CN201720480022 U CN 201720480022U CN 206830882 U CN206830882 U CN 206830882U
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Abstract
This application discloses a kind of super-pressure overlapping two, including valve body, check valve, valve element and end cap, the end cap has ending cover hole, the ending cover hole is connected with valve opening so that the valve element can move axially in ending cover hole with valve opening, the end cap is fixed on the both ends of the valve body and is connected by first seal with valve seal, and the end cap is connected by second seal with seal spool；Wherein, the first seal and the second seal are superhigh pressure sealing part.The overlapping two is sealed with second seal as first seal using superhigh pressure sealing part to end cap and valve body and end cap with valve element, good sealing effect so that overlapping two can normal work under ultra-high voltage environment.
Description
Technical field
The present invention relates to ultrahigh-pressure hydraulic component technical field, and in particular to a kind of double one-way throttles of super-pressure superposing type
Valve.
Background technology
Choke valve is a kind of flow control valve, and using widely in hydraulic system, the design principle of choke valve is also more
Kind is various.Its general design principle is：When choke valve passes through metered flow, by adjusting the area of passage of restriction, change
Pressure differential before and after restriction.Once pressure caused by load and the pressure caused by throttling, both have exceeded system at summation
The pressure that overflow valve is set up, then the overflow valve will be opened, and be overflowed equivalent to part system flow from overflow valve, system
Flow is split, and realizes the function of flow control in this way.
One-way throttle valve, exactly before restriction parallel connection add a check valve apparatus so that oil stream can only be to one
Throttled during individual direction flowing, opposite direction will not throttle when flowing.
Overlapping two, it is exactly that two one-way throttle valves have been arranged symmetrically in valve body, valve body can be with commutation
The conventional hydraulic component such as valve, hydraulic lock is overlapped formula installation.For choke valve, especially for overlapping two
For, sealing and pressure-resistant effect are all the main subject matter of design forever, and it is bad or can not that existing product is respectively provided with sealing effectiveness
The shortcomings that working under high pressure.
Based on this, the application provides a kind of good sealing effect, overpressure resistant overlapping two.
The content of the invention
The application is intended to one of technical problem at least solving in correlation technique to a certain extent.
Therefore, the utility model needs to provide a kind of super-pressure overlapping two, the double unidirectional sections of the superposing type
Flow valve sealed reliable and can be in steady operation under super-pressure.
According to embodiment of the present utility model, the overlapping two includes valve body and is symmetricly set in the valve
The check valve and valve element at body both ends, the check valve have valve opening, and the valve element can move axially in the valve opening.Also wrap
Include：
End cap, the end cap have an ending cover hole, the ending cover hole be connected with valve opening so that the valve element can ending cover hole with
Moved axially in valve opening, the end cap is fixed on the both ends of the valve body and is connected by first seal with valve seal, institute
End cap is stated to be connected with seal spool by second seal；
Wherein, the first seal and the second seal are superhigh pressure sealing part.
In addition, according to the above-mentioned overlapping two of the utility model, it is special following supplementary technology can also to be included
Sign：
As the further alternative of the overlapping two, the first seal is annealing red copper
Pad, for the end face seal between end cap and valve body；The second seal is co-axial seals, between end cap and valve element
Cambered surface sealing.
As the further alternative of the overlapping two, between the valve element and end cap and valve element with
It is that gap coordinates between check valve.
As the further alternative of the overlapping two, 0.01 is used between the valve element and end cap
~0.03mm gap coordinates, and is coordinated between the valve element and check valve using 0~0.01mm gap.
As the further alternative of the overlapping two, the valve body, check valve, valve element and end cap
Use high-strength alloy steel forgings.
As the further alternative of the overlapping two, in addition to adjusting part, it is connected to institute
Valve element is stated, for axial movement of the adjusting spool in ending cover hole and valve opening.
As the further alternative of the overlapping two, the adjusting part include adjusting screw and
Locking nut, the adjusting screw stretch in ending cover hole and are connected to valve element.
As the further alternative of the overlapping two, in addition to protective cover, the protective cover connects
It is connected to the end face of the end cap and is set in the periphery of the adjusting part.
As the further alternative of the overlapping two, the valve body includes oil inlet passage and fuel-displaced
Passage, the oil inlet passage are communicated to oil discharge passage via check valve.
As the further alternative of the overlapping two, the end of the valve element is provided with depth and width
Spend the throttling channel of gradual minor variations.
The beneficial effects of the utility model：
The utility model using superhigh pressure sealing part as first seal and second seal to end cap and valve body and
End cap is sealed with valve element, good sealing effect so that overlapping two can normal work ultra-high voltage environment it
Under.
Brief description of the drawings
Fig. 1 is the structural representation according to the utility model overlapping two.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.Wherein different embodiments
Middle similar component employs associated similar element numbers.In the following embodiments, many detailed descriptions be in order to
The application is better understood.However, those skilled in the art can be without lifting an eyebrow recognize, which part feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Certain operations that please be related are not shown in the description or description, and this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, be described in detail these associative operations be not it is necessary, they
The general technology knowledge of description and this area in specification can completely understand associative operation.
In addition, feature described in this description, operation or feature can combine to form respectively in any suitable way
Kind embodiment.Meanwhile each step in method description or action can also can be aobvious and easy according to those skilled in the art institute
The mode carry out order exchange or adjustment seen.Therefore, the various orders in specification and drawings are intended merely to clearly describe a certain
Individual embodiment, necessary order is not meant to be, wherein some sequentially must comply with unless otherwise indicated.
It is herein part institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any order or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
It refer to Fig. 1, the overlapping two in the utility model embodiment includes valve body 100 and symmetrically set
The check valve 200 and valve element 300 at the both ends of valve body 100 are placed in, check valve 200 has valve opening 210, and valve element 300 can be in valve opening 210
Axial movement.Valve body 100 and the check valve 200 at the both ends of valve body 100 form two sets of one-way throttle valves with valve element 300, pass through valve element
300 mobile realization is controlled to flow.
Further, the overlapping two also includes end cap 400, and end cap 400 has ending cover hole 410, the end
Cap bore 410 is connected with valve opening 210 so that valve element 300 can move axially in ending cover hole 410 and valve opening 210, and end cap 400 is fixed on
The both ends of valve body 100 are simultaneously tightly connected by first seal 500 and valve body 100, end cap 400 by second seal 600 with
Valve element 300 is tightly connected；Wherein, first seal 500 and second seal 600 are superhigh pressure sealing part.
In this way, by the effect of superhigh pressure sealing part-first seal 500 and second seal 600, on the one hand can protect
The sealing reliability between end cap 400 and valve body 100 and end cap 400 and valve element 300 is demonstrate,proved, improves sealing effectiveness, on the other hand
The presence of superhigh pressure sealing part enables the overlapping two normal work to be extended under ultra-high voltage environment
The applicable situation of overlapping two, the service life of overlapping two is improved to a certain extent.
It is appreciated that the annexation between above-mentioned end cap 400 and valve body 100 is the connection of end face and end face, and end cap
Annexation between 400 and valve element 300 for cambered surface and cambered surface connection, based on this, in order to realize sealing effectiveness, above-mentioned first
Seal 500 selects red copper pad, and for the end face seal between end cap 400 and valve body 100, second seal 600 is from coaxial
Seal, for the cambered surface sealing between end cap 400 and valve element 300.
In some embodiments, the movement for the ease of valve element 300 inside ending cover hole 410 and valve opening 210, valve element
It is that gap coordinates between 300 and end cap 400 and between valve element 300 and check valve 200.
In some specific embodiments, matched somebody with somebody between valve element 300 and end cap 400 using 0.01~0.03mm gap
Close, coordinated between valve element 300 and check valve 200 using 0~0.01mm gap.It can so ensure in installation first seal
500 with second seal 600 after, the overlapping two work under ultra-high pressure condition do not have liquid stream reveal or
Only extremely small leakage.
Further, in some more specifical embodiments, valve body 100, check valve 200, valve element 300 and end cap
400 use high-strength alloy steel forgings.Now, valve body 100, check valve 200, valve element 300 and end cap 400 and first seal
500 and second seal 600 more can guarantee that the service behaviour of overlapping two together so that the double unidirectional sections of superposing type
Stream valve rigidity and intensity are enough to bear the continuous-stable duty under ultra-high pressure condition, such as 100MPa and above working condition
Under.
In the present embodiment, overlapping two also includes adjusting part 700, and the adjusting part 700 connects
In valve element 300, the one end of valve element 300 away from check valve 200 is specifically connected to, for adjusting spool 300 in ending cover hole 410 and valve
Axial movement in hole 210.
In this way, control shifting of the valve element 300 in ending cover hole 410 and valve opening 210 by adjusting the can of adjusting part 700
It is dynamic, so as to adjust the size of restriction area of passage, then realize the regulation to the uninterrupted of liquid stream.
Specifically, the adjusting part 700 includes adjusting screw 710 and locking nut 720, the adjusting screw 710 stretches to
Ending cover hole 410 is interior and is connected to valve element 300.Now, by forcing or drawing the afterbody of adjusting screw 710 that valve element can be achieved outside
300 axial movement, so as to complete the regulation of uninterrupted.
In some embodiments, can be in adjusting screw 710 and end in order to simplify regulation and improve the convenience of regulation
The liquid such as lubricating fluid are filled between cap bore 410 so that adjusting screw 710 smooth can move in ending cover hole 410.
In other embodiments, it can also realize that adjusting screw 710 is being held by way of turning adjusting screw 710
Movement in cap bore 410.Now, external screw thread can be set in the outer surface of adjusting screw 710, is set on ending cover hole 410 and outer
The internal thread that screw thread matches, the movement of adjusting screw 710 is realized by screw-driven.
In order to further improve the convenience of regulation, can be set in some embodiments in the afterbody of adjusting screw 710
Handle 730, the handle 730 can be the cylinder that diameter is more than adjusting screw 710, and such handle 730 is easy to human body palm
Directly press.In addition, may be provided for improving the texture of frictional force on the excircle of the cylinder, it is easy to the rotation of finger
Turn, the texture can be similar to plastic bottle closure.
In some embodiments, in order to be protected to adjusting part 700, also it is arranged in the periphery of adjusting part 700
There is dust cover 800, the dust cover 800 is removably attachable to the end face of end cap 400.
Below in conjunction with Fig. 1 is made to the operation principle and process of the utility model overlapping two simple be situated between
Continue.
Fig. 1 is refer to, the overlapping two includes valve body 100, check valve 200 and valve element 300, check valve
200 are two groups with valve element 300 and are symmetricly set on the both ends of valve body 100, have in the inside of valve body 100 two groups respectively with it is above-mentioned
Two groups of check valves 200 and 300 corresponding runner of valve element.The runner includes oil inlet passage, such as passage A or C, and oil discharge passage,
Such as passage B or D, above-mentioned oil inlet passage are communicated to oil discharge passage via check valve.In addition, oil inlet passage is communicates directly to unidirectionally
The valve opening 210 of valve 200, so so that liquid stream flows to B from A or flows to D not by the control of valve element 300 from C, and flows to A from C
Or C is flowed to then by the control of valve element 300 from D.In this way, realize one-way throttle valve function of the present utility model.
In the present embodiment, the end of valve element 300 is provided with the throttling channel 310 of the gradual minor variations of depth and width, makes
Obtain the in different size of length direction of the throttling channel 310 along valve element 300.Liquid stream from C flow to A or from D flow to C when liquid stream first will
By throttling channel 310.Now, because the depth and width of throttling channel 310 gradually change, when valve element 300 is in valve opening 210
When mobile, the position of the throttling channel 310 also produces change accordingly, changes the area of passage of valve port, realizes the control of flow
Make and significantly acted on restriction effect.
In some specific embodiments, above-mentioned 310 big I of throttling channel sets the one of throttling channel 310 from valve element 300
Hold another extreme direction to valve element 300 to taper into, now, throttling channel 310 can be arranged to scissor-shaped as shown in Figure 1.
So when valve element 300 is closer to check valve 200, restriction effect is more obvious, until obstructing passing through for liquid stream completely.It refer to figure
Left-half and right half part in 1, valve element 300 has two extreme positions in valve opening 210, in the first extreme position
When, valve element 300 does not have inhibition to liquid stream, and now, liquid stream can smoothly flow through the passage in valve body 100；When in
During two extreme positions, valve element 300 generates the restriction effect of maximum to liquid stream, now, when liquid stream flows to A from C or is flowed to from D
Liquid stream is farthest hindered during C, and becoming present liquid stream can not pass through.When needing to release this obstruction, lock only need to be unclamped
Tight nut 720, valve element 300 are movable to required position in the presence of recovery spring 900 and locking nut 720.
It should be noted that four position of mounting hole of the utility model valve body continue to use standard universal size, standard 6S peaces
Size is filled, can be assembled with the reversal valve of 6S series, hydraulic lock etc. by stacked system, easily fill easy-to-use, compact-sized, installation letter
Just, interchangeability is good for folk prescription.
Description more than to each embodiment of the utility model, the utility model at least possess following technology
Effect：
1st, good sealing effect；
2nd, can normal work in ultra-high pressure condition；
3rd, it is compact-sized reliable, it is easy-to-use；
4th, it is convenient to be docked with other Hydraulic Elements, and interchangeability is good.
Use above specific case is illustrated to the present invention, is only intended to help and is understood the present invention, not limiting
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make some simple
Deduce, deform or replace.
Claims (10)
1. a kind of super-pressure overlapping two, including valve body and be symmetricly set in the valve body both ends check valve and
Valve element, the check valve have valve opening, and the valve element can move axially in the valve opening, it is characterised in that also include：
End cap, the end cap have ending cover hole, and the ending cover hole is connected with valve opening so that the valve element can be in ending cover hole and valve opening
Interior axial movement, the end cap are fixed on the both ends of the valve body and are connected by first seal with valve seal, the end
Lid is connected by second seal with seal spool；
Wherein, the first seal and the second seal are superhigh pressure sealing part.
2. super-pressure overlapping two as claimed in claim 1, it is characterised in that the first seal is to move back
Fiery red copper pad, for the end face seal between end cap and valve body；The second seal is co-axial seals, for end cap and valve
Cambered surface sealing between core.
3. super-pressure overlapping two as claimed in claim 2, it is characterised in that between the valve element and end cap
And it is that gap coordinates between valve element and check valve.
4. super-pressure overlapping two as claimed in claim 3, it is characterised in that between the valve element and end cap
Coordinated using 0.01~0.03mm gap, coordinated between the valve element and check valve using 0~0.01mm gap.
5. the super-pressure overlapping two as any one of Claims 1-4, it is characterised in that the valve
Body, check valve, valve element and end cap use high-strength alloy steel forgings.
6. super-pressure overlapping two as claimed in claim 5, it is characterised in that also including adjusting part, its
The valve element is connected to, for axial movement of the adjusting spool in ending cover hole and valve opening.
7. super-pressure overlapping two as claimed in claim 6, it is characterised in that the adjusting part includes adjusting
Screw and locking nut are saved, the adjusting screw stretches in ending cover hole and is connected to valve element.
8. super-pressure overlapping two as claimed in claim 7, it is characterised in that described also including protective cover
Protective cover is connected to the end face of the end cap and is set in the periphery of the adjusting part.
9. super-pressure overlapping two as claimed in claim 8, it is characterised in that the valve body leads to including oil-feed
Road and oil discharge passage, the oil inlet passage are communicated to oil discharge passage via check valve.
10. super-pressure overlapping two as claimed in claim 9, it is characterised in that the end of the valve element is set
There is the throttling channel of the gradual minor variations of depth and width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720480022.1U CN206830882U (en) | 2017-05-02 | 2017-05-02 | A kind of super-pressure overlapping two |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720480022.1U CN206830882U (en) | 2017-05-02 | 2017-05-02 | A kind of super-pressure overlapping two |
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| Publication Number | Publication Date |
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| CN206830882U true CN206830882U (en) | 2018-01-02 |
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| CN201720480022.1U Active CN206830882U (en) | 2017-05-02 | 2017-05-02 | A kind of super-pressure overlapping two |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854785A (en) * | 2018-12-24 | 2019-06-07 | 国营第一二三厂 | A kind of shell processing pressure retaining valve of air spider |
-
2017
- 2017-05-02 CN CN201720480022.1U patent/CN206830882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854785A (en) * | 2018-12-24 | 2019-06-07 | 国营第一二三厂 | A kind of shell processing pressure retaining valve of air spider |
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