CN205423371U - Novel high -efficient guiding valve - Google Patents
Novel high -efficient guiding valve Download PDFInfo
- Publication number
- CN205423371U CN205423371U CN201521064657.0U CN201521064657U CN205423371U CN 205423371 U CN205423371 U CN 205423371U CN 201521064657 U CN201521064657 U CN 201521064657U CN 205423371 U CN205423371 U CN 205423371U
- Authority
- CN
- China
- Prior art keywords
- pearl
- guiding valve
- oil passage
- inlet
- pearl seat
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a novel high -efficient guiding valve, it includes hollow valve casing, fluid passageway that the inner chamber of this valve casing moved as the fuel feeding liquid stream, it has inlet, liquid outlet to open on the valve casing, inlet, liquid outlet and the switch -on of fluid passageway, fluid passageway and the inlet choke that dwindles for the bore of handing -over department mutually, the bore of choke far be lighter than the internal diameter of fluid passageway, lie in choke one side and be equipped with in proper order to match with the inlet and merge the cylindrical pearl seat of a communicating section of thick bamboo, the guiding valve coaxial with the fluid passageway in the fluid passageway, be fixed with one and seal the pearl with the opening of pearl seat is just right on the guiding valve terminal surface relative with the pearl seat, with seal corresponding the opening on the port of pearl seat of pearl have be convenient for with the port of pearl seat with seal the chamfer that the pearl gomphosis is in the same place, seal open on the pearl seat some chamfers can with seal the fine gomphosis of pearl, guarantee to seal the pearl and the gomphosis degree pearl seat, guarantee good isolated effect.
Description
Technical field
This utility model belongs to dispenser device field, particularly relates to a kind of new and effective guiding valve.
Background technology
Allotter is the indispensable key element of tractor hydraulic system, and guiding valve is the core part of allotter, the quality of this part directly affects the performance of product, because of its complex process with high content of technology, so processing is just proposed the highest requirement, especially envelope pearl is as bearing oil pressure and the centre part of spring mechanical pressure, the most easily wear and tear, once after abrasion, guiding valve lost efficacy, whole allotter will be changed, so core hardness is the most also the difficult problem in industry, and allotter problem ratio in tractor hydraulic system is higher, so how solve this difficult problem and just become the task of top priority.
Utility model content
This utility model is that the problem that the above-mentioned mentioned envelope pearl of solution is easily subject to high pressure abrasion provides a kind of new and effective guiding valve, to be greatly improved the life-span of guiding valve.
The technical scheme that this utility model provides for solving the problems referred to above is:
A kind of new and effective guiding valve, it includes the valve casing of hollow, the oil passage that the inner chamber of this valve casing moves as fuel feeding liquid stream, valve casing has inlet, liquid outlet, described inlet, liquid outlet are connected with oil passage, the choke that described oil passage reduces for bore with the inlet place of connecting, the bore of described choke much smaller than the internal diameter of oil passage, is positioned at choke side in oil passage and is sequentially provided with to match with inlet and merges the guiding valve that the pearl seat of the barrel mast shape communicated is coaxial with oil passage；The end face that guiding valve is relative with pearl seat is fixed with one with the port of pearl seat just to envelope pearl, be easy to envelope corresponding the having on the port of pearl seat of pearl by the port of pearl seat with seal the chamfering that pearl is entrenched togather.
Further, also including thrust spring, this thrust spring is arranged in oil passage, and described guiding valve relies on thrust spring so that envelope pearl to withstand on the passage port of pearl seat.
Further, the position matched with the facade of choke at pearl seat is additionally provided with O-ring seal.
Further, one end of described valve casing is with the end cap for sealing oil passage.
Further, the described inlet on valve casing and liquid outlet are all straight-through vertical hole.
Further, also with O-ring seal on the outer peripheral face of described guiding valve.
Further, being fixed with the baffle plate for ending oil passage in valve casing, one end of described thrust spring is fixed on baffle plate, and the other end of thrust spring withstands guiding valve.
This utility model has the beneficial effect that in terms of existing technologies
Providing an envelope pearl seat, the pressure born by envelope pearl seat reduction envelope pearl ensures that envelope pearl is in relative in lower pressure environment.
The chamfering having on envelope pearl seat can be the most chimeric with envelope pearl, it is ensured that the chimeric degree with pearl seat of envelope pearl, it is ensured that good isolation effect.
Using thrust spring as returning power original paper, it does not affect normal liquid conveying, and concentricity is high, and the life-span is high, and using effect is preferable.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model；
Description of reference numerals: inlet 1, pearl seat 2, envelope pearl 3, guiding valve 4, liquid outlet 5, valve casing 6, spring 7, end cap 8.
Detailed description of the invention
Below according to accompanying drawing 1, this utility model is described further:
nullA kind of new and effective guiding valve，It includes the valve casing of hollow，The oil passage that the inner chamber of this valve casing moves as fuel feeding liquid stream，One end of described valve casing is with the end cap for sealing oil passage，The baffle plate for ending oil passage it is fixed with in valve casing，Valve casing has inlet、Liquid outlet，Inlet and liquid outlet are all straight-through vertical hole，Described inlet、Liquid outlet is all connected with oil passage，The choke that described oil passage reduces for bore with the inlet place of connecting，The passage bore of described choke is much smaller than the internal diameter of oil passage，In oil passage, it is positioned at choke side is sequentially provided with the pearl seat of the barrel mast shape that the merging that matches with inlet communicates、The guiding valve coaxial with oil passage，The end face that guiding valve is relative with pearl seat is fixed with one with the port of pearl seat just to envelope pearl，The chamfering being entrenched togather by the port of pearl seat it is easy to envelope pearl with envelope corresponding the having on the port of pearl seat of pearl，Also include that this thrust spring of thrust spring is arranged in oil passage，One end of described thrust spring is fixed on baffle plate，The other end of thrust spring withstands guiding valve，Described guiding valve relies on thrust spring so that envelope pearl to withstand on the passage port of pearl seat.
For ensureing uniform flow, inlet mentioned in this utility model and liquid outlet are all vertical vertical mouth, and two positions intersected with housing that are i.e. located along the same line all have hole.
For ensureing good partition effect, it is additionally provided with O-ring seal, also with O-ring seal on the outer peripheral face of guiding valve in the position matched with the facade of choke at pearl seat.
Below according to accompanying drawing 1, movement mechanism of the present utility model is illustrated:
Fluid flows into choke from oil-in and flows in pearl seat, when oil pressure is more than the thrust of spring, move after envelope pearl and guiding valve, fluid slowly flows in oil passage, until guiding valve streaks oil-out and got out of the way completely by oil-out, fluid flows out from oil-out, after the thrust that oil pressure is less than spring, guiding valve moves forward, and envelope pearl sinciput is until sealing the port of pearl seat completely.
Claims (7)
1. a new and effective guiding valve, it is characterized in that: include the valve casing (6) of hollow, the oil passage that the inner chamber of this valve casing (6) moves as fuel feeding liquid stream, valve casing (6) has inlet (1), liquid outlet (5), described inlet (1), liquid outlet (5) is connected with oil passage, the choke that described oil passage reduces for bore with inlet (1) place of connecting, the bore of described choke is much smaller than the internal diameter of oil passage, in oil passage, it is positioned at choke side is sequentially provided with the pearl seat (2) of the barrel mast shape that the merging that matches with inlet (1) communicates, the guiding valve (4) coaxial with oil passage；The end face that guiding valve (4) is relative with pearl seat (2) is fixed with one with the port of pearl seat (2) just to envelope pearl (3), be easy to the chamfering being entrenched togather by the port of pearl seat (2) with envelope pearl (3) with envelope pearl (3) corresponding having on the port of pearl seat (2).
The new and effective guiding valve of one the most according to claim 1, it is characterized in that: also include thrust spring (7), this thrust spring (7) is arranged in oil passage, and described guiding valve (4) relies on thrust spring (7) to withstand on the passage port of pearl seat (2) will seal pearl (3).
The new and effective guiding valve of one the most according to claim 1, it is characterised in that: the position matched with the facade of choke at pearl seat (2) is additionally provided with O-ring seal.
The new and effective guiding valve of one the most according to claim 1, it is characterised in that: one end of described valve casing (6) is with the end cap (8) for sealing oil passage.
The new and effective guiding valve of one the most according to claim 1, it is characterised in that: the described inlet (1) on valve casing (6) and liquid outlet (5) they are all straight-through vertical hole.
The new and effective guiding valve of one the most according to claim 1 (4), it is characterised in that: also with O-ring seal on the outer peripheral face of described guiding valve (4).
The new and effective guiding valve of one the most according to claim 2, it is characterized in that: in valve casing (6), be fixed with the baffle plate for ending oil passage, one end of described thrust spring (7) is fixed on baffle plate, and the other end of thrust spring (7) withstands guiding valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521064657.0U CN205423371U (en) | 2015-12-18 | 2015-12-18 | Novel high -efficient guiding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521064657.0U CN205423371U (en) | 2015-12-18 | 2015-12-18 | Novel high -efficient guiding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423371U true CN205423371U (en) | 2016-08-03 |
Family
ID=56537523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521064657.0U Expired - Fee Related CN205423371U (en) | 2015-12-18 | 2015-12-18 | Novel high -efficient guiding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423371U (en) |
-
2015
- 2015-12-18 CN CN201521064657.0U patent/CN205423371U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20201218 |