CN205478624U - Hydrovalve with drainage hole - Google Patents
Hydrovalve with drainage hole Download PDFInfo
- Publication number
- CN205478624U CN205478624U CN201620125164.1U CN201620125164U CN205478624U CN 205478624 U CN205478624 U CN 205478624U CN 201620125164 U CN201620125164 U CN 201620125164U CN 205478624 U CN205478624 U CN 205478624U
- Authority
- CN
- China
- Prior art keywords
- hole
- conduction hole
- drainage hole
- spool
- case
- 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.)
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Abstract
The utility model relates to a hydrovalve with drainage hole, including valve body, setting case, the valve plug stem of setting on the case in the valve body, be provided with a flow channel in the valve body, the case is the cone valve core the cylinder hole has been offered along its axial lead orientation to the intermediate position of the preceding terminal surface of case the toper groove has been seted up to the axial lead direction of case to the bottom face in cylinder hole to first drainage hole and second drainage hole have been seted up to the symmetry on the side in cylinder hole, first drainage hole and second drainage hole all communicate with each other with valve plug stem's the outer face of cylinder. Through having seted up the cylinder hole on the case the toper groove has been seted up to the axial lead direction of case to the bottom face in cylinder hole to first drainage hole and second drainage hole have been seted up to the symmetry on the side in cylinder hole, guide to the outlet side of throttle mouthful to the high -pressure liquid stream of entrance through tiny first drainage hole and second drainage hole, improve outlet pressure value, reduce a throttle mouthful pressure differential of locating, thereby alleviate the cavitation erosion.
Description
Technical field
This utility model relates to valve class technical field, particularly relates to a kind of hydraulic valve with conduction hole.
Background technology
Hydraulic valve is the Automation Elements of a kind of pressure oil operation, and it is controlled by distributing valve pressure oil,
Generally it is applied in combination with electromagnetic distributing valve, can be used for distant control power station oil, gas and water pipeline system
The break-make of system.Be usually used in clamping, control, the oil circuit such as lubrication.Hydraulic valve be divided into direction valve, flow valve,
Pressure valve etc..At present during the use of hydraulic valve, cavitation can be produced, cavitate at spool and
The erosion of two kinds of forms is produced: one is large-sized pit, is to be ruptured by single isolated bubbles to make on valve seat
Become；Another kind is the pit that some are less, is to be formed by the impact cumulative function that some intensity are more weak
's.Common practice: in order to reduce cavitation erosion, is made spool polymorphic structure, but this abnormity is tied
Structure processing difficulties, improves manufacturing cost.
Utility model content
This utility model is in order to overcome deficiency of the prior art, it is provided that a kind of liquid with conduction hole
Pressure valve, in order to suppress cavitation erosion, guides to going out of restriction by tiny runner the high pressure liquid stream of porch
Mouth side, improves exit pressure levels, reduces the pressure reduction at restriction, thus alleviates cavitation erosion.
This utility model is to be achieved through the following technical solutions:
A kind of hydraulic valve with conduction hole, the spool including valve body, being arranged in valve body, is arranged on
Valve core rod on spool, is provided with a fluid course in described valve body, described spool is poppet valve core,
The centre position of the front end face of described spool offers cylindrical hole along its direction of axis line, at described cylinder
The bottom in hole offers cone tank towards the direction of axis line of spool, and symmetrical on the side of cylindrical hole
Offer the first conduction hole and the second conduction hole, described first conduction hole and the second conduction hole all and spool
The external cylindrical surface of bar communicates.
Cutting as optimal technical scheme of the present utility model, described first conduction hole and the second conduction hole
Face is circle, its a diameter of 5mm-8mm.
As optimal technical scheme of the present utility model, described first conduction hole and the second conduction hole and water
Square to angle be 30 degree-45 degree.
As optimal technical scheme of the present utility model, described valve body uses austenitic stainless steel to make,
Described spool is with metal as base material, and the composite with pottery as top layer is made.
Compared with prior art, the beneficial effects of the utility model are: this utility model is on spool
Offering cylindrical hole, in the bottom of described cylindrical hole, the direction of axis line towards spool offers cone tank,
And symmetry offers the first conduction hole and the second conduction hole on the side of cylindrical hole, by tiny
One conduction hole and the second conduction hole guide to the outlet side of restriction the high pressure liquid stream of porch, improve and
Mouth pressure value, reduces the pressure reduction at restriction, thus alleviates cavitation erosion.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with
Drawings and Examples, are further elaborated to this utility model.Should be appreciated that this place is retouched
The specific embodiment stated, only in order to explain this utility model, is not used to limit this utility model.
Referring to Fig. 1, Fig. 1 is structural representation of the present utility model.
Described a kind of hydraulic valve with conduction hole, the spool 2 including valve body 1, being arranged in valve body 1,
The valve core rod 3 being arranged on spool 2, is provided with a fluid course 4, described spool in described valve body 1
2 is poppet valve core, offers cylinder in the centre position of the front end face of described spool 2 along its direction of axis line
Hole 5, in the bottom of described cylindrical hole 5, the direction of axis line towards spool 2 offers cone tank 6, and
On the side of cylindrical hole 5, symmetry offers the first conduction hole 7 and the second conduction hole 8, and described first draws
Discharge orifice 7 and the second conduction hole 8 all external cylindrical surfaces with valve core rod 3 communicate.By offering on spool
Having cylindrical hole 5, in the bottom of described cylindrical hole 5, the direction of axis line towards spool 2 offers cone tank
6, and on the side of cylindrical hole 5, symmetry offers the first conduction hole 7 and the second conduction hole 8, passes through
The first tiny conduction hole 7 and the high pressure liquid stream of second 8 porch of conduction hole guide to going out of restriction
Mouth side, improves exit pressure levels, reduces the pressure reduction at restriction, thus alleviates cavitation erosion.
The cross section of described first conduction hole 7 and the second conduction hole 8 is circle, and it is a diameter of
5mm-8mm, described first conduction hole 7 and the second conduction hole 8 are 30 degree-45 with the angle of horizontal direction
Degree.
Described valve body 1 uses austenitic stainless steel to make, and surface carries out anodization, can be the most anti-
Only corrosion, and austenitic stainless steel is carried out the PROCESS FOR TREATMENT such as chrome-faced, nickel, molybdenum, magnesium, it is possible to
To improve the corrosion protection abrasion resistant performance of material.
Described spool 2 is with metal as base material, and the composite with pottery as top layer is made, the most both
Remain the obdurability of metal and the high rigidity of pottery and excellent wear-resistant corrosion resistance, overcome again
The fragility of pottery.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, all any amendment, equivalent and improvement made within spirit of the present utility model and principle
Deng, within should be included in protection domain of the present utility model.
Claims (4)
1. there is a hydraulic valve for conduction hole, including valve body (1), be arranged in valve body (1)
Spool (2), the valve core rod (3) being arranged on spool (2), described valve body is provided with one in (1)
Fluid course (4), described spool (2) is poppet valve core, it is characterised in that: in described spool (2)
The centre position of front end face offer cylindrical hole (5) along its direction of axis line, in described cylindrical hole (5)
Bottom offer cone tank (6) towards the direction of axis line of spool (2), and in cylindrical hole (5)
Side on symmetry offer the first conduction hole (7) and the second conduction hole (8), described first conduction hole
(7) and the second conduction hole (8) all external cylindrical surfaces with valve core rod (3) communicate.
A kind of hydraulic valve with conduction hole the most according to claim 1, it is characterised in that: institute
The cross section stating the first conduction hole (7) and the second conduction hole (8) is circle, its a diameter of 5mm-8mm.
A kind of hydraulic valve with conduction hole the most according to claim 1, it is characterised in that: institute
The angle stating the first conduction hole (7) and the second conduction hole (8) and horizontal direction is 30 degree of-45 degree.
A kind of hydraulic valve with conduction hole the most according to claim 1, it is characterised in that: institute
Stating valve body (1) uses austenitic stainless steel to make, and described spool (2) is with metal as base material, with
Pottery is made for the composite on top layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125164.1U CN205478624U (en) | 2016-02-17 | 2016-02-17 | Hydrovalve with drainage hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125164.1U CN205478624U (en) | 2016-02-17 | 2016-02-17 | Hydrovalve with drainage hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478624U true CN205478624U (en) | 2016-08-17 |
Family
ID=56677570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620125164.1U Active CN205478624U (en) | 2016-02-17 | 2016-02-17 | Hydrovalve with drainage hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026877A (en) * | 2018-09-01 | 2018-12-18 | 哈尔滨工程大学 | A kind of valve based on combination of rigidity and flexibility coating Yu Non-smooth surface space flow-disturbing micro-structure |
-
2016
- 2016-02-17 CN CN201620125164.1U patent/CN205478624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026877A (en) * | 2018-09-01 | 2018-12-18 | 哈尔滨工程大学 | A kind of valve based on combination of rigidity and flexibility coating Yu Non-smooth surface space flow-disturbing micro-structure |
| CN109026877B (en) * | 2018-09-01 | 2020-12-04 | 哈尔滨工程大学 | Valve based on rigid-flexible composite coating and non-smooth space turbulent flow microstructure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |