CN204300407U - A kind of used with tractor control valve - Google Patents
A kind of used with tractor control valve Download PDFInfo
- Publication number
- CN204300407U CN204300407U CN201420777641.3U CN201420777641U CN204300407U CN 204300407 U CN204300407 U CN 204300407U CN 201420777641 U CN201420777641 U CN 201420777641U CN 204300407 U CN204300407 U CN 204300407U
- Authority
- CN
- China
- Prior art keywords
- spool
- valve pocket
- runddichtringo
- oil duct
- valve
- 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 relates to a kind of used with tractor control valve, comprises valve chest, valve pocket, O RunddichtringO, back-up ring and spool; In described valve chest, side is provided with symmetrically arranged two oil duct junctions; Valve pocket is provided with in described valve chest; The port for drawdown communicated with oil duct junction is provided with in described valve pocket; Described port for drawdown is between two oil duct junctions; O RunddichtringO is provided with between described valve pocket and valve chest; The described O RunddichtringO back side is provided with back-up ring; Spool is arranged with in described valve pocket; Subsing tank is provided with between described valve pocket and spool; Indention bottom described subsing tank; In described spool, side is provided with compensating groove; The two ends of described oil duct junction and port for drawdown have the established angle of O RunddichtringO, used with tractor control valve of the present utility model, and it is simple and compact for structure, long service life, and not easy oil leakage and clamping stagnation, be well positioned to meet the user demand of farm tractor, there is higher use value.
Description
Technical field
The utility model relates to a kind of control valve, particularly relates to a kind of control valve for tractor.
Background technique
Tractor is a kind of self-propelled motor machine utilizing traction and driving Work machine to complete every mobile operation, and also can fix operation power, and it is widely used in the various fields such as agricultural.Farm tractor is the tractor being specifically designed to agricultural, existing farm tractor mostly is 4 wheel driven and drives, it is higher to the requirement of power, wherein control valve plays an important role, but in use easily there is leakage of oil and clamping stagnation in existing control valve, cause tractor by oil mass many and use inconvenience, the user demand of actual farm tractor cannot be met.
Model utility content
The utility model object provides a kind of compact structure to overcome the deficiencies in the prior art, the used with tractor control valve of not easy oil leakage and clamping stagnation.
For achieving the above object, the technical solution adopted in the utility model is: a kind of used with tractor control valve, comprises valve chest, valve pocket, O RunddichtringO, back-up ring and spool; In described valve chest, side is provided with symmetrically arranged two oil duct junctions; Valve pocket is provided with in described valve chest; The port for drawdown communicated with oil duct junction is provided with in described valve pocket; Described port for drawdown is between two oil duct junctions; O RunddichtringO is provided with between described valve pocket and valve chest; The described O RunddichtringO back side is provided with back-up ring; Spool is arranged with in described valve pocket; Subsing tank is provided with between described valve pocket and spool; Indention bottom described subsing tank; In described spool, side is provided with compensating groove.
Preferably, the two ends of described oil duct junction and port for drawdown have the established angle of O RunddichtringO.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages: the used with tractor control valve of the utility model scheme, it is simple and compact for structure, long service life, and not easy oil leakage and clamping stagnation, be well positioned to meet the user demand of farm tractor, there is higher use value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further.
Accompanying drawing 1 is the structural representation of the utility model used with tractor control valve.
Wherein: 1, valve chest; 2, valve pocket; 3, O RunddichtringO; 4, back-up ring; 5, spool; 6, oil duct junction; 7, port for drawdown; 8, subsing tank; 9, parallel slot.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Described in the utility model a kind of used with tractor control valve as shown in Figure 1, comprises valve chest 1, valve pocket 2, O RunddichtringO 3, back-up ring 4 and spool 5; In described valve chest 1, side is provided with symmetrically arranged two oil duct junctions 6; Valve pocket 2 is provided with in described valve chest 1; The port for drawdown 7 communicated with oil duct junction 6 is provided with in described valve pocket 2; Described port for drawdown 7 is between two oil duct junctions 6; O RunddichtringO 3 is provided with between described valve pocket 2 and valve chest 1; Described O RunddichtringO 3 back side is provided with back-up ring 4; Spool 5 is arranged with in described valve pocket 2; Subsing tank 8 is provided with between described valve pocket 2 and spool 5; Indention bottom described subsing tank 8; In described spool 5, side is provided with compensating groove 9; The two ends of described oil duct junction 6 and port for drawdown 7 have the established angle of O RunddichtringO.
Described in the utility model a kind of used with tractor control valve as shown in Figure 1, the subsing tank of precipitation greasy dirt is provided with between spool and valve pocket, and the bottom of shallow lake groove is zigzag fashion, larger particles in such greasy dirt will drop in the zigzag fashion of subsing tank automatically, thus to increasing the storage volume of greasy dirt, ensure the use of control valve energy safety and stability; The matching gap of spool and valve pocket increases, and the high pressure oil section in spool is provided with compensating groove, during such spool work, can float, decrease the clamping stagnation of control valve, use convenient under the effect of high pressure oil.
Back-up ring has been set up at the O RunddichtringO back side of simultaneously bearing high pressure oil at valve pocket, loss O RunddichtringO is extruded in order to prevent high pressure oil, and the port for drawdown that valve pocket leads to oil cylinder is one, fuel-displaced by two oil duct junctions being arranged on valve chest the same side, fuel-displaced like this direction is the direction of the same side, decrease the leakage of high pressure oil, what reduce tractor uses oily demand, decreases cost of production.
Used with tractor control valve as above, also has the established angle of O RunddichtringO at the two ends of oil duct junction and port for drawdown, loss O RunddichtringO during in order to prevent from installing spool.
Used with tractor control valve of the present utility model, it is simple and compact for structure, long service life, and not easy oil leakage and clamping stagnation, be well positioned to meet the user demand of farm tractor, there is higher use value.
Below be only embody rule example of the present utility model, protection domain of the present utility model is not constituted any limitation.The technological scheme that all employing equivalents or equivalence are replaced and formed, all drops within the utility model rights protection scope.
Claims (2)
1. a used with tractor control valve, is characterized in that: comprise valve chest, valve pocket, O RunddichtringO, back-up ring and spool; In described valve chest, side is provided with symmetrically arranged two oil duct junctions; Valve pocket is provided with in described valve chest; The port for drawdown communicated with oil duct junction is provided with in described valve pocket; Described port for drawdown is between two oil duct junctions; O RunddichtringO is provided with between described valve pocket and valve chest; The described O RunddichtringO back side is provided with back-up ring; Spool is arranged with in described valve pocket; Subsing tank is provided with between described valve pocket and spool; Indention bottom described subsing tank; In described spool, side is provided with compensating groove.
2. used with tractor control valve according to claim 1, is characterized in that: the two ends of described oil duct junction and port for drawdown have the established angle of O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777641.3U CN204300407U (en) | 2014-12-11 | 2014-12-11 | A kind of used with tractor control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777641.3U CN204300407U (en) | 2014-12-11 | 2014-12-11 | A kind of used with tractor control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300407U true CN204300407U (en) | 2015-04-29 |
Family
ID=53105948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420777641.3U Expired - Fee Related CN204300407U (en) | 2014-12-11 | 2014-12-11 | A kind of used with tractor control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179726A (en) * | 2015-06-15 | 2015-12-23 | 林春华 | Novel constant-temperature plastic equalizing valve element |
-
2014
- 2014-12-11 CN CN201420777641.3U patent/CN204300407U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179726A (en) * | 2015-06-15 | 2015-12-23 | 林春华 | Novel constant-temperature plastic equalizing valve element |
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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 |
Granted publication date: 20150429 Termination date: 20191211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |