CN208203691U - A kind of screw thread inserting type hydraulic high-pressure shuttle valve structure - Google Patents
A kind of screw thread inserting type hydraulic high-pressure shuttle valve structure Download PDFInfo
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- CN208203691U CN208203691U CN201820754732.3U CN201820754732U CN208203691U CN 208203691 U CN208203691 U CN 208203691U CN 201820754732 U CN201820754732 U CN 201820754732U CN 208203691 U CN208203691 U CN 208203691U
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- mandril
- valve pocket
- steel ball
- conical surface
- plug
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Abstract
The utility model discloses a kind of screw thread inserting type hydraulic high-pressure shuttle valve structures, including plug, mandril, valve pocket and steel ball, the plug is threadedly coupled with valve pocket, the chamber for accommodating mandril is formed after plug and valve pocket assembly, described mandril one end and plug inner wall, which contradict, realizes axially position, and the other end and valve sleeving inner wall contradict and realize axially position, and mandril is provided with and the matched conical surface of steel ball close to steel ball one end, it is provided with sealing element between valve pocket and mandril, is provided in valve pocket and the matched conical surface of steel ball.The shuttle valve structure has the advantages that compact-sized, high pressure resistant, long service life.
Description
Technical field
The utility model relates to hydraulic valve technologies, and in particular to a kind of screw thread inserting type hydraulic high-pressure shuttle valve structure.
Background technique
Hydraulic shuttle valve is common pressure selection valve in hydraulic system, is widely used in the signal choosing of all kinds of work mechanisms
It selects, wherein the shuttle valve of screw thread inserting type structure, compact-sized, and it is convenient to select.Currently, the world main inserted valve supply commercial city has certainly
Oneself shuttle valve product, and type spectrum has been formed, and be generally made into exchange on installation jack, the selection to realize product is convenient, but
Each company's shuttle valve product internal structure is different, and performance level is also irregular, by hydraulic excavator for mine
Practical application shows that the high pressure shuttle of main screw-in cartridge valve producer production at present is not able to satisfy under 35MPa pressure, the service life
3000000 requirements.
Utility model content
In view of this, making its tool the purpose of the utility model is to provide a kind of screw thread inserting type hydraulic high-pressure shuttle valve structure
There is the advantages of compact-sized, high pressure resistant, long service life.
The utility model is solved the above problems by following technological means: a kind of screw thread inserting type hydraulic high-pressure shuttle valve knot
Structure, including plug, mandril, valve pocket and steel ball, the plug are threadedly coupled with valve pocket, are formed after plug and valve pocket assembly and are accommodated top
The chamber of bar, described mandril one end and plug inner wall, which contradict, realizes axially position, and the other end is realized axial with valve sleeving inner wall conflict
Positioning, mandril close to steel ball one end be provided with the matched conical surface of steel ball, sealing element is provided between valve pocket and mandril, in valve pocket
It is provided with and the matched conical surface of steel ball.
Further, the conical surface position of mandril and the conical surface position of valve pocket thicken.
Further, steel ball forms conical surface seal after being close to the conical surface of mandril.
Further, steel ball also forms conical surface seal after being close to the conical surface of valve pocket.
Further, stepped hole shaft type is formed between mandril and plug seal fit structure.
The utility model has the beneficial effects that the screw thread inserting type hydraulic high-pressure shuttle valve structure of the utility model, on the one hand, stifled
Head is threadedly coupled with valve pocket, and the chamber for accommodating mandril is formed after plug and valve pocket assembly, and plug and valve pocket assembly can after tightening
It contacts the both ends of mandril with plug inner wall and valve sleeving inner wall abutting respectively, to realize the axially position of mandril, ensure that
When steel ball hits mandril when shuttle valve works, mandril relative position is fixed, to ensure that the sealing element between mandril and valve pocket
For static seal, the service life of sealing element is improved；On the other hand, mandril is provided with and the matched cone of steel ball close to steel ball one end
Face, steel ball form conical surface seal after being close to the conical surface of mandril, be also equipped in valve pocket and the matched conical surface of steel ball, steel ball and valve
The conical surface of set also forms conical surface seal after being close to, and is designed using the class formation, in the shuttle valve course of work, no matter steel ball hits top
Bar or valve pocket, and taper-face contact, conical surface energy dispersing impact forces improve the uniformity of stress, to be conducive to improve each
The service life of component.Further, since the conical surface of mandril and the conical surface of valve pocket are the position of power of being mainly hit, this structure at two
It is designed using thickening, guarantees structural strength, be further conducive to improve service life.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in detail below with reference to attached drawing, as shown in Figure 1: the thread cartridge of the utility model
Formula hydraulic high-pressure shuttle valve structure, including plug 1, mandril 2, valve pocket 3 and steel ball 4, the plug have internal and external threads, and external screw thread exists
Shuttle valve uses when installing, and plug is threadedly coupled by internal screw thread with valve pocket, forms the chamber for accommodating mandril after plug and valve pocket assembly
Room, mandril close to steel ball one end be provided with the matched conical surface of steel ball, sealing element 5 is provided between valve pocket and mandril, certainly,
Various sealing elements have also been set as needed in other positions of each component, this is the prior art, are not described in detail；It is set in valve pocket
It is equipped with and the matched conical surface of steel ball.The shuttle valve structure, on the one hand, plug and valve pocket assemble the both ends point that can make mandril after tightening
It is not contacted with plug inner wall and valve sleeving inner wall abutting, to realize the axially position of mandril, ensure that steel ball works in shuttle valve
When hitting mandril, mandril relative position is fixed, to ensure that sealing element between mandril and valve pocket is static seal, is improved
The service life of sealing element.On the other hand, in the specific use process, when left pressure entrance (such as label 1.) input high pressure pressure
When power, steel ball 4 hits in high-pressure and is adjacent on the conical surface of mandril 2, forms conical surface seal, base pressure outlet is (as marked
Number 2.) output high-pressure；When base pressure entrance (such as label 3.) input high-pressure, steel ball 4 is hit in high-pressure
And be adjacent on the conical surface of valve pocket 3, form conical surface seal, base pressure outlet (such as label 2.) output high-pressure.Therefore, shuttle
In the valve course of work, no matter steel ball hits mandril or valve pocket, and taper-face contact, conical surface energy dispersing impact forces, improve by
The uniformity of power, to be conducive to improve the service life of each component.Further, since based on the conical surface of mandril and the conical surface of valve pocket
The position for the power that is hit, this at two structure guarantee structural strength using design is thickeied, be further conducive to improve and use the longevity
Life.
Stepped hole shaft type sealing cooperation knot is formed as further improvement to above-mentioned technical proposal, between mandril and plug
Structure.Specifically, it is ladder shaft-like that mandril and plug, which assemble one end, and plug and mandril assembly position are stepped hole shape, this dress
With it is advantageously ensured that the leakproofness that mandril and plug assemble.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. a kind of screw thread inserting type hydraulic high-pressure shuttle valve structure, it is characterised in that: described including plug, mandril, valve pocket and steel ball
Plug is threadedly coupled with valve pocket, forms the chamber for accommodating mandril, described mandril one end and plug inner wall after plug and valve pocket assembly
It contradicts and realizes axially position, the other end and valve sleeving inner wall contradict and realize axially position, and mandril is provided with close to steel ball one end and steel
The ball matched conical surface is provided with sealing element between valve pocket and mandril, be provided in valve pocket and the matched conical surface of steel ball.
2. screw thread inserting type hydraulic high-pressure shuttle valve structure according to claim 1, it is characterised in that: the conical surface position of mandril
And the conical surface position of valve pocket thickeies.
3. screw thread inserting type hydraulic high-pressure shuttle valve structure according to claim 2, it is characterised in that: the cone of steel ball and mandril
Face forms conical surface seal after being close to.
4. screw thread inserting type hydraulic high-pressure shuttle valve structure according to claim 3, it is characterised in that: the cone of steel ball and valve pocket
Face also forms conical surface seal after being close to.
5. screw thread inserting type hydraulic high-pressure shuttle valve structure according to claim 4, it is characterised in that: between mandril and plug
It forms stepped hole shaft type and seals fit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754732.3U CN208203691U (en) | 2018-05-21 | 2018-05-21 | A kind of screw thread inserting type hydraulic high-pressure shuttle valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820754732.3U CN208203691U (en) | 2018-05-21 | 2018-05-21 | A kind of screw thread inserting type hydraulic high-pressure shuttle valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208203691U true CN208203691U (en) | 2018-12-07 |
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ID=64517747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820754732.3U Active CN208203691U (en) | 2018-05-21 | 2018-05-21 | A kind of screw thread inserting type hydraulic high-pressure shuttle valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208203691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754167A (en) * | 2022-05-17 | 2022-07-15 | 潍柴动力股份有限公司 | Shuttle valve |
-
2018
- 2018-05-21 CN CN201820754732.3U patent/CN208203691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754167A (en) * | 2022-05-17 | 2022-07-15 | 潍柴动力股份有限公司 | Shuttle valve |
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