CN204372230U - Valve bush type Proportional valve - Google Patents
Valve bush type Proportional valve Download PDFInfo
- Publication number
- CN204372230U CN204372230U CN201520017998.6U CN201520017998U CN204372230U CN 204372230 U CN204372230 U CN 204372230U CN 201520017998 U CN201520017998 U CN 201520017998U CN 204372230 U CN204372230 U CN 204372230U
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- valve
- valve pocket
- spool
- oilhole
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Abstract
Valve bush type Proportional valve, is characterized by and comprise valve body, valve pocket, spool, and described valve pocket is arranged on valve inner, and offer symmetrical oilhole, the outer surface of described valve pocket internal surface and described spool does class fit; Described valve body is provided with can to the oil circuit of the oilhole fuel feeding on described valve pocket.
Description
Technical field
What the present invention relates to is a kind of valve bush type Proportional valve.
Background technique
The working principle of plunger hydraulic valve changes by the position of spool in valve body the control reached oil circuit.What the main body structure of existing conventional hydraulic valve adopted is screw-driven to drive valve core movement, the shortcoming of this structure have following some:
1, difficulty of processing is high.If Fig. 2 spool does routing motion in valve body, the higher effect of matching gap of hydraulic parts spool and valve body is better, grinding is adopted to reach its precision so general, this inner chamber and valve body are that the structure of one makes to adopt valve body integral grinding, and the general this valve body side of being body and structural volume are large, Heavy Weight, bring certain difficulty to grinding.Secondly, the diameter of general spool is at about 6-10cm, and this just brings difficulty to machined into, and the more little longer difficulty of well-known machined into endoporus is larger.
2, hydraulic oil be from oil circuit unidirectional flow to spool, certain impact can be caused to spool when high pressure high flow rate, and the cooperation of spool and valve body always has certain gap, this can allow spool produce certain vibration, and this understands the stable generation considerable influence to the higher hydraulic system of control accuracy.
3, because the hydraulic oil of hydraulic system in real Environmental Conditions is not absolute cleanliness, and the probability that the rotation of spool can make the particulate in hydraulic oil be threaded into go in the gap of valve body and spool increases, and this rotation with particle can produce larger destruction to valve interior wall and spool outer wall and cause spool jam.As this structure of Fig. 1 once stuck and inwall produce scratch just can only entirety scrap, cost compare is high.
Summary of the invention
Given this, in order to solve the problem, the invention provides that a kind of difficulty of processing is low, quality of fit is high, the more stable and Proportional valve that cost of production is lower of hyperbaric environment.
Valve bush type Proportional valve, is characterized by and comprise valve body, valve pocket, spool, and described valve pocket is arranged on valve inner, and offer symmetrical oilhole, the outer surface of described valve pocket internal surface and described spool does class fit; Described valve body is provided with can to the oil circuit of the oilhole fuel feeding on described valve pocket.
Further, described body cavity surface is provided with groove, and described groove is communicated with the oil outlet on described valve body, and the outer surface of described groove and described valve pocket forms the closing oil path to the fuel feeding simultaneously of the oilhole on described valve pocket jointly.
Further, the symmetrical oilhole that described valve pocket is offered, same independent oil circuit is offered 4 oilholes, and the angle between each adjacent ones is 90 degree.
Further, what the sealing between described valve pocket outer surface and valve body adopted is the soft seal of o type circle.
Further, use o type circle by each oil circuit seal isolation between described valve body and valve pocket.
Further, the mounting groove installing o type circle is offered between each oil circuit of described valve pocket outer surface.
After adopting this technological scheme:
1, relative to conventional construction, the design does class fit by valve pocket and spool, and valve core structure is plunger, and plunger processing is a very ripe technology.And valve body does not need to carry out class fit, thus lathe also reduces greatly to the difficulty of processing of valve body.
2, the design's hydraulic oil must could arrive spool place by the oilhole on valve pocket after being come in by valve body oil duct, and the oilhole on valve pocket is symmetrical, this just can make running of hydraulic power oil cancel each other to the impact that spool causes, substantially increase the stability of valve core movement like this, thus improve the stability of hydraulic system entirety.
3, what being sealed and matched of valve pocket and valve body adopted is the soft seal of o type circle, and relatively and conventional construction and interference fit, this cooperation is dismountable.When valve pocket and spool by card bad time, as long as change valve pocket and spool, valve body can continue to use, and this just greatly reduces cost.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present invention.
Fig. 2 is exploded view of the present invention.
Embodiment
With reference to figure 1, Fig. 2, valve bush type Proportional valve, is characterized by and comprise valve body 1, valve pocket 4, spool 2, described valve pocket 4 offers symmetrical oilhole 41, is arranged on valve body 1 inner.The outer surface of described valve pocket 4 internal surface and described spool 2 does class fit; Described valve body 1 surface of internal cavity is provided with groove 12, and described groove 12 is communicated with the oil outlet 11 on described valve body, and the outer surface of described groove 12 and described valve pocket 4 forms the closing oil path to the fuel feeding simultaneously of the oilhole 41 on described valve pocket 4 jointly.What the sealing between described valve pocket 4 outer surface and valve body 1 adopted is the soft seal of o type circle 5.The mounting groove 42 installing o type circle is offered, by oil circuit seal isolation each between valve body 1 and valve pocket 4 after installation o type circle between each oil circuit of described valve pocket 4 outer surface.
After adopting this technological scheme:
1, relative to conventional construction, the design does class fit by valve pocket 4 and spool 2, and spool 2 structure is plunger, and plunger processing is a very ripe technology.And valve body 1 does not need to carry out class fit, thus lathe also reduces greatly to the difficulty of processing of valve body.
2, the design's hydraulic oil must could arrive spool place by the oilhole on valve pocket after being come in by valve body oil duct, and the oilhole on valve pocket is symmetrical, this just can make running of hydraulic power oil cancel each other to the impact that spool causes, substantially increase the stability of valve core movement like this, thus improve the stability of hydraulic system entirety.
3, what being sealed and matched of valve pocket and valve body adopted is the soft seal of o type circle, and relatively and conventional construction and interference fit, this cooperation is dismountable.When valve pocket and spool by card bad time, as long as change valve pocket and spool, valve body can continue to use, and this just greatly reduces cost.
Claims (6)
1. valve bush type Proportional valve, is characterized by: comprise valve body, valve pocket, spool, and described valve pocket is arranged on valve inner, and offer symmetrical oilhole, the outer surface of described valve pocket internal surface and described spool does class fit; Described valve body is provided with can to the oil circuit of the oilhole fuel feeding on described valve pocket.
2. valve bush type Proportional valve as claimed in claim 1, it is characterized by: described body cavity surface is provided with groove, described groove is communicated with the oil outlet on described valve body, and the outer surface of described groove and described valve pocket forms the closing oil path to the fuel feeding simultaneously of the oilhole on described valve pocket jointly.
3. valve bush type Proportional valve as claimed in claim 2, is characterized by: described valve pocket is offered symmetrical oilhole, same independent oil circuit is offered 4 oilholes, the angle between each adjacent ones is 90 degree.
4. valve bush type Proportional valve as claimed in claim 3, is characterized by: what the sealing between described valve pocket outer surface and valve body adopted is the soft seal of o type circle.
5. valve bush type Proportional valve as claimed in claim 4, is characterized by: use o type circle by each oil circuit seal isolation between described valve body and valve pocket.
6. the valve bush type Proportional valve as described in one of claim 1-5, is characterized by: offer the mounting groove installing o type circle between each oil circuit of described valve pocket outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017998.6U CN204372230U (en) | 2015-01-12 | 2015-01-12 | Valve bush type Proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520017998.6U CN204372230U (en) | 2015-01-12 | 2015-01-12 | Valve bush type Proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372230U true CN204372230U (en) | 2015-06-03 |
Family
ID=53328452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520017998.6U Active CN204372230U (en) | 2015-01-12 | 2015-01-12 | Valve bush type Proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500783A (en) * | 2015-01-12 | 2015-04-08 | 无锡市晟瑞机械电子有限公司 | Valve sleeve type proportional valve |
-
2015
- 2015-01-12 CN CN201520017998.6U patent/CN204372230U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500783A (en) * | 2015-01-12 | 2015-04-08 | 无锡市晟瑞机械电子有限公司 | Valve sleeve type proportional valve |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |