CN205858836U - A kind of pressure-gradient control valve on loader - Google Patents
A kind of pressure-gradient control valve on loader Download PDFInfo
- Publication number
- CN205858836U CN205858836U CN201620876420.0U CN201620876420U CN205858836U CN 205858836 U CN205858836 U CN 205858836U CN 201620876420 U CN201620876420 U CN 201620876420U CN 205858836 U CN205858836 U CN 205858836U
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- CN
- China
- Prior art keywords
- valve
- oil
- pressure
- loader
- gradient control
- 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
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Abstract
This utility model relate to the pressure-gradient control valve on a kind of loader, including a valve body, it is primarily characterized in that described valve inner is provided with a valve pocket, described valve body side is provided with an oil-in, its opposite side is provided with upper and lower two oil-outs, a valve rod it is fitted with in described valve pocket, described body base car is shaped with on screw thread, its screw thread and has been screwed screw plug, and described valve body top is provided with guide's oilhole.Pressure-gradient control valve on a kind of loader of the present utility model, its simple in construction, cost is low, feature easy to use.
Description
Technical field
This utility model and the technical field of a kind of loader accessory improvement, particularly relate on a kind of loader is preferential
Valve.
Background technology
Existing loader uses hydraulic system, have employed two working barrels to control turning to and large arm of loader
, owing to two working barrels work alone, steering pump flow can be there is in practical usage situations excessive in work, and working barrel
The inadequate situation of flow occurs, and this utility model technical is preferably improved existing, well utilizes two
Pump service condition simultaneously, improves the feature of the efficiency of loader.
Summary of the invention
This utility model provides the pressure-gradient control valve on a kind of loader, which solves existing pressure-gradient control valve due to two work
Pump works alone, and can there is steering pump flow in practical usage situations excessive, and the inadequate situation of working barrel flow is sent out
Raw shortcoming.
Above-mentioned technical problem of the present utility model its be addressed by following technical proposals.
Pressure-gradient control valve on a kind of loader of the present utility model, including a valve body, is primarily characterized in that described valve
Internal portion is provided with a valve pocket, and described valve body side is provided with an oil-in, its opposite side is provided with upper and lower two oil-outs, institute
Being fitted with a valve rod in the valve pocket stated, described body base car is shaped with on screw thread, its screw thread and has been screwed screw plug, described valve
Body top is provided with guide's oilhole.
As preferably: be provided with return spring between described screw plug and valve rod.
As preferably: fixed by bearing between described valve body and valve pocket.
Pressure-gradient control valve on a kind of loader of the present utility model, the oil-in of pressure-gradient control valve is connected with steering pump, upper oil-out
Being connected with large arm work system, lower oil-out is connected with steering, guide's oilhole with steering wheel oil-out to being connected, when
When steering wheel does not works, pressure-gradient control valve does not works, and the oil of steering pump is directly flowed out from upper hydraulic fluid port by pressure-gradient control valve, enters large arm work
Device, when steering wheel works, the pressure oil of steering wheel outlet enters valve pocket top by guide's oilhole, and pressure oil pushes valve rod
Move down, valve rod and the position change of valve pocket, make oil-in communicate with bottom oil-out, and top oil-out closes with oil-in
Closing, steering pump is steering fuel feeding, and when steering wheel does not works, pilot pressure oil cuts off, and valve rod returns under the action of the spring
Position, makes oil-in communicate with top oil-out, makes steering pump be still large arm work system fuel feeding, improve the entirety of loader
Efficiency, its simple in construction, cost is low, feature easy to use.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Labelling in figure: 1-valve body: 2-valve pocket: 3-oil-in: 4-oil-out: 5-valve rod: 6-screw plug: 7-guide's oilhole: 8-
Return spring: 9-bearing.
Detailed description of the invention
Understand for the ease of those of ordinary skill in the art and implement this utility model, and combining accompanying drawing to this utility model
Technical scheme be described in further detail.
Embodiment: as it is shown in figure 1, the pressure-gradient control valve on a kind of loader of this example, including a valve body (1), it is the most special
Levy and be that described valve body (1) is internal and be provided with a valve pocket (2), described valve body (1) side be provided with an oil-in (3), its
Opposite side is provided with upper and lower two oil-outs (4), is fitted with a valve rod (5), described valve body (1) end in described valve pocket (2)
Portion's car is shaped with on screw thread, its screw thread and has been screwed screw plug (6), and described valve body (1) top is provided with guide's oilhole (7), described
Screw plug (6) and valve rod (5) between return spring (8) is installed, by bearing (9) between described valve body (1) and valve pocket (2)
Fix.
Pressure-gradient control valve on a kind of loader of the present utility model, the oil-in of pressure-gradient control valve is connected with steering pump, upper oil-out
Being connected with large arm work system, lower oil-out is connected with steering, guide's oilhole with steering wheel oil-out to being connected, when
When steering wheel does not works, pressure-gradient control valve does not works, and the oil of steering pump is directly flowed out from upper hydraulic fluid port by pressure-gradient control valve, enters large arm work
Device, when steering wheel works, the pressure oil of steering wheel outlet enters valve pocket top by guide's oilhole, and pressure oil pushes valve rod
Move down, valve rod and the position change of valve pocket, make oil-in communicate with bottom oil-out, and top oil-out closes with oil-in
Closing, steering pump is steering fuel feeding, and when steering wheel does not works, pilot pressure oil cuts off, and valve rod returns under the action of the spring
Position, makes oil-in communicate with top oil-out, makes steering pump be still large arm work system fuel feeding, improve the entirety of loader
Efficiency, its simple in construction, cost is low, feature easy to use.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to
This, any those skilled in the art is in field of the present utility model, and change or the modification made all are contained in this practicality new
Among the scope of the claims of type.
Claims (3)
1. the pressure-gradient control valve on loader, including a valve body, is primarily characterized in that described valve inner is provided with one
Valve pocket, described valve body side is provided with an oil-in, its opposite side is provided with upper and lower two oil-outs, plug-in mounting in described valve pocket
Having a valve rod, described body base car to be shaped with on screw thread, its screw thread and be screwed screw plug, described valve body top is provided with one
Guide's oilhole.
Pressure-gradient control valve on a kind of loader the most according to claim 1, is primarily characterized in that described screw plug and valve rod
Between return spring is installed.
Pressure-gradient control valve on a kind of loader the most according to claim 1, is primarily characterized in that described valve body and valve pocket
Between fixed by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620876420.0U CN205858836U (en) | 2016-08-15 | 2016-08-15 | A kind of pressure-gradient control valve on loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620876420.0U CN205858836U (en) | 2016-08-15 | 2016-08-15 | A kind of pressure-gradient control valve on loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858836U true CN205858836U (en) | 2017-01-04 |
Family
ID=57593635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620876420.0U Expired - Fee Related CN205858836U (en) | 2016-08-15 | 2016-08-15 | A kind of pressure-gradient control valve on loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465116A (en) * | 2018-10-10 | 2019-03-15 | 刘兆 | A kind of perforated wall centrifuge |
-
2016
- 2016-08-15 CN CN201620876420.0U patent/CN205858836U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109465116A (en) * | 2018-10-10 | 2019-03-15 | 刘兆 | A kind of perforated wall centrifuge |
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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: 20170104 Termination date: 20170815 |