CN202597311U - Load sensing valve - Google Patents
Load sensing valve Download PDFInfo
- Publication number
- CN202597311U CN202597311U CN 201220213067 CN201220213067U CN202597311U CN 202597311 U CN202597311 U CN 202597311U CN 201220213067 CN201220213067 CN 201220213067 CN 201220213067 U CN201220213067 U CN 201220213067U CN 202597311 U CN202597311 U CN 202597311U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- spring
- valve seat
- piece
- 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 load sensing valve. The load sensing valve comprises a pressure adjusting screw, a hexagon nut, a cover plate, a valve seat, a valve sleeve, a valve core, a spring seat, a spring, a pushing rod, a valve seat, an inner hexagon cylindrical head screw and a valve block, wherein the valve seat, the valve sleeve, the valve core, the spring seat, the pushing rod and the valve seat are connected in sequence and are respectively positioned in the valve block; the spring is arranged on the spring seat; the pressure adjusting screw is arranged on the valve seat and is positioned outside the valve block; the hexagon nut is arranged on the pressure adjusting screw; the inner hexagon cylindrical head screw is arranged on the hexagon nut; and the valve block is made of forged steel which is processed by heat treatment. The load sensing valve has the advantages that a forging piece for the valve block replaces a casting piece, and the inner part is sealed by adopting a sealing piece, so that the problem in the background art is better solved, the appearance is simple, the processing and the positioning are convenient and the maintenance is fast.
Description
Technical field
The utility model relates to a kind of hydraulic pressure installation, relates in particular to a kind of load-sensing valve, is mainly used in the oil hydraulic pump variable to cut down the consumption of energy.
Background technique
Existing with once had comprise the home and abroad about the load-sensing valve, housing all adopts foundry goods, inner body is by adopting steel design and all adopting clearance seal.Because oil hydraulic pump high-pressure high-flow normally in digging machine; Supporting with it corresponding product all needs high temperature high voltage resistant so existing product high to the requirement of foundry goods; And in order to guarantee castability; Profile is also complicated, and domestic foundry goods also has certain difference with external foundry goods on performance, causes product under high temperature, high pressure, producing distortion after the application soon or owing to casting defect causes problems such as amount of leakage is big, motor reaction is insensitive.
Summary of the invention
To defective of the prior art, the utility model provides a kind of convenient processing and manufacture, simple in structure, easy accessibility, overhauls load-sensing valve efficiently.
For reaching the technological scheme that above-mentioned model utility purpose the utility model adopted be: a kind of load-sensing valve; Comprise pressure regulating screw, hexagon nut, cover plate, valve seat, valve pocket, spool, spring seat, spring, push rod, valve seat, hexagon socket cap head screw and valve piece; Said valve seat, valve pocket, spool, spring seat, push rod and valve seat are connected successively; And all be positioned at said valve piece, said spring is located on the said spring seat, and said pressure regulating screw is installed on the said valve seat; And be positioned at the outside of said valve piece; Said hexagon nut is installed on the said pressure regulating screw, and said hexagon socket cap head screw is installed on the said hexagon nut, it is characterized in that said valve piece processed by the forged steel of crossing through heat treatment process.
Be provided with seal ring between said valve seat and the said valve piece.
Said seal ring has two.
The valve piece of the utility model is with the alternative foundry goods of forging, and the Sealing sealing is adopted in inside, preferably resolve the problem that exists in the background technique, and profile is simple, and processing is located conveniently, maintenance is quick.
Further specify below in conjunction with the mode of execution of accompanying drawing the utility model.
Description of drawings
Fig. 1 is the structural representation of a kind of preferred embodiments of the utility model.
Embodiment
As shown in Figure 1; The load-sensing valve; Comprise pressure regulating screw 1, hexagon nut 2, cover plate 3, valve seat 4, valve pocket 5, spool 6, spring seat 7, spring 8, push rod 9, valve seat 10, valve piece 11 and hexagon socket cap head screw 12, said valve seat 4, valve pocket 5, spool 6, spring seat 7, push rod 9 are connected successively with valve seat 10, and all are positioned at said valve piece 11; Said spring 8 is located on the said spring seat 7; Said pressure regulating screw 1 is installed on the said valve seat 4, and is positioned at the outside of said valve piece 11, and said hexagon nut 2 is installed on the said pressure regulating screw 1; Said hexagon socket cap head screw 12 is installed on the said hexagon nut 2, and said valve piece 11 is processed by the forged steel of crossing through heat treatment process.Be provided with seal ring 13 between said valve seat 4 and the said valve piece 11, and seal ring 13 there are two.Adopt this double sealing structure, sealing effect is fairly good.
More than describe the preferred embodiment of the utility model in detail.The ordinary skill that should be appreciated that related domain need not creative work and just can make many modifications and variation according to the design of the utility model.Therefore, all technician in the art, all should fall in the protection domain of the utility model on the basis of existing technology through the available technological scheme of logical analysis, reasoning, or a limited experiment according to the design of the utility model.
Claims (3)
1. load-sensing valve; Comprise pressure regulating screw (1), hexagon nut (2), cover plate (3), valve seat (4), valve pocket (5), spool (6), spring seat (7), spring (8), push rod (9), valve seat (10), valve piece (11) and hexagon socket cap head screw (12); Said valve seat (4), valve pocket (5), spool (6), spring seat (7), push rod (9) and valve seat (10) are connected successively; And all be positioned at said valve piece (11); Said spring (8) is located on the said spring seat (7); Said pressure regulating screw (1) is installed on the said valve seat (4), and is positioned at the outside of said valve piece (11), and said hexagon nut (2) is installed on the said pressure regulating screw (1); Said hexagon socket cap head screw (12) is installed on the said hexagon nut (2), it is characterized in that said valve piece (11) processed by the forged steel of crossing through heat treatment process.
2. load-sensing valve according to claim 1 is characterized in that being provided with seal ring (13) between said valve seat (4) and the said valve piece (11).
3. load-sensing valve according to claim 2 is characterized in that said seal ring (13) has two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213067 CN202597311U (en) | 2012-05-14 | 2012-05-14 | Load sensing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220213067 CN202597311U (en) | 2012-05-14 | 2012-05-14 | Load sensing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597311U true CN202597311U (en) | 2012-12-12 |
Family
ID=47314858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220213067 Expired - Fee Related CN202597311U (en) | 2012-05-14 | 2012-05-14 | Load sensing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049828A (en) * | 2020-08-18 | 2020-12-08 | 温州大学 | Secondary flow distribution device and load sensitive flow distribution mechanism |
-
2012
- 2012-05-14 CN CN 201220213067 patent/CN202597311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112049828A (en) * | 2020-08-18 | 2020-12-08 | 温州大学 | Secondary flow distribution device and load sensitive flow distribution mechanism |
| CN112049828B (en) * | 2020-08-18 | 2022-04-22 | 温州大学 | Secondary flow distribution device and load sensitive flow distribution mechanism |
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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: 20121212 Termination date: 20150514 |
|
| EXPY | Termination of patent right or utility model |