CN207648178U - A kind of balanced valve - Google Patents
A kind of balanced valve Download PDFInfo
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- CN207648178U CN207648178U CN201721899053.7U CN201721899053U CN207648178U CN 207648178 U CN207648178 U CN 207648178U CN 201721899053 U CN201721899053 U CN 201721899053U CN 207648178 U CN207648178 U CN 207648178U
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- spool
- hydraulic fluid
- valve body
- fluid port
- valve
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Abstract
The utility model is related to a kind of balanced valves, including valve body（2）And end cap, the spool of valve body both sides（6）, the valve body is equipped with hydraulic fluid port C（3）, hydraulic fluid port V（4）, the end cap of side is equipped with control port K（5）, it is characterised in that：Spool is equipped in the valve body（6）, spool left side is equipped with check valve（7）, in little spring（8）Under the action of be tightly attached to spool（6）On；The spool（6）With plug（9）, spring（1）, spring base pass through screw（10）Link into an integrated entity structure；The little spring（8）The oil pocket at place is connected to hydraulic fluid port C, the spool（6）The oil pocket at place is connected to hydraulic fluid port V, control port K.The balancing valve structure of this programme is simple, weight can be further prevented to decline there is jitter phenomenon in the process.
Description
Technical field
The utility model is related to a kind of hydraulic valves, more particularly to one kind is for hoisting mechanism in crane system hydraulic circuit
Hydraulic control balanced valve.
Background technology
In the mechanical equipments such as modern project machinery, the quality for balancing valve performance directly affects overall performance, existing
For structure when weight declines process, the active force of control port and its direction of the active force of hydraulic oil are opposite so that valve rod is difficult
It is maintained at an opposing stationary state, the flow of hydraulic oil can change at any time, still easily occur when weight being caused to decline
Jitter phenomenon causes the unstable of system.
Invention content
The utility model in view of the foregoing drawbacks, and it is an object of the present invention to provide it is a kind of it is simple in structure, weight can be effectively eliminated declined
The balanced valve of the jitter phenomenon occurred in journey.
To solve the above problems, the technical solution adopted in the utility model is：A kind of balanced valve, including valve body 2 and valve body
End cap, the spool 6 of both sides, the valve body 2 are equipped with hydraulic fluid port C3, and the end cap of hydraulic fluid port V4, side are equipped with control port K5, feature
It is：It is equipped with spool 6 in the valve body, is equipped with check valve 7 on the left of spool, spool 6 is tightly attached under the action of little spring 8
On；The spool 6 and plug 9, spring 1 are linked into an integrated entity structure by screw 10；Oil pocket and hydraulic fluid port where the little spring 8
C3 is connected to, and the oil pocket where the spool 6 is connected to hydraulic fluid port V4, control port K5.
Preferably, pressure oil is entered by control port K 5 in the sealing space that valve body 2 and spool 6 are formed, the control
Hydraulic fluid port K5 enters sealing space, and the area on the right of sealing space is bigger than left side area, leads to 6 Impact direction of spool to the right, i.e. institute
It is consistent with oil reflux direction to state the pressure difference direction that pressure oil is acted on by control port K5 on valve rod.
Using the above structure, there are following advantages for the utility model：1, the utility model is simple in structure, easy for installation, smart
Degree is more improved relative to conventional balanced；2, the active force of control port and the active force of hydraulic oil exist when the utility model oil return
Same direction so that weight valve rod during decline can be maintained at opposite stationary state well, further decrease shake
Phenomenon.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of conversely reverse balanced valve of the utility model.
Fig. 2 is a kind of conversely reverse balanced valve hydraulic schematic diagram of the utility model.
Spring in figure（1）, valve body（2）, hydraulic fluid port C（3）, hydraulic fluid port V（4）, control mouth K（5）, spool（6）, check valve（7）, it is small
Spring（8）, plug（9）, screw（10）.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained；
Embodiment 1：Such as Fig. 1, shown in Fig. 2, a kind of balanced valve, including valve body 2 and the end cap of valve body both sides, spool 6, institute
It states valve body 2 and is equipped with hydraulic fluid port C3, the end cap of hydraulic fluid port V4, side are equipped with control port K5, it is characterised in that：It is equipped in the valve body
Spool 6,6 left side of spool are equipped with check valve 7, are tightly attached on spool 6 under the action of little spring 8；The spool 6 and plug 9,
Spring 1, spring base are linked into an integrated entity structure by screw 10；Oil pocket where the little spring 8 is connected to hydraulic fluid port C3, the valve
Oil pocket where core 6 is connected to hydraulic fluid port V4, control port K5.
When working in the utility model：
When hydraulic fluid port V4 oil inlets, pressure oil is inscribed through-hole by spool 6 and leads to check valve 7, when overcoming 8 spring force of little spring,
Check valve 7 is opened, and pressure oil exits into executing agency from hydraulic fluid port C3；
When hydraulic fluid port C3 oil inlets, pressure oil enters spool 6, while pressure oil enters control mouth K5, due to having on check valve 7
Aperture is connected with 8 place oil pocket of little spring, and check valve 7 is caused not opened under pressure, as pressure gradually increases, pressure
Oil is acted on by the pressure of control mouth K5 on spool 6, since sealing space of the spool 6 at control mouth K5 has difference in areas, is led
Cause spool 6 Impact direction to the right, after overcoming the spring force of spring 1, spool 6 moves right, and hydraulic fluid port C3 pressure oils are into oiler
V4 exits into executing agency.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, one's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention, the utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (2)
1. a kind of balanced valve, including valve body（2）And end cap, the spool of valve body both sides（6）, the valve body is equipped with hydraulic fluid port C（3）,
Hydraulic fluid port V（4）, the end cap of side is equipped with control port K（5）, it is characterised in that：Spool is equipped in the valve body（6）, spool left side
Equipped with check valve（7）, in little spring（8）Under the action of be tightly attached to spool（6）On；The spool（6）With plug（9）, spring
（1）, spring base pass through screw（10）Link into an integrated entity structure；The little spring（8）The oil pocket at place is connected to hydraulic fluid port C, described
Spool（6）The oil pocket at place is connected to hydraulic fluid port V, control port K.
2. a kind of balanced valve as described in claim 1, it is characterised in that：Pressure oil enters valve body by control port K（2）
And spool（6）In the sealing space of formation, in the sealing space that the pressure oil is entered by control port K, sealing space is right
The area on side is bigger than left side area, leads to spool（6）To the right, i.e., the described pressure oil is acted on Impact direction by control port K
Pressure difference direction on valve rod is consistent with oil reflux direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721899053.7U CN207648178U (en) | 2017-12-29 | 2017-12-29 | A kind of balanced valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721899053.7U CN207648178U (en) | 2017-12-29 | 2017-12-29 | A kind of balanced valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207648178U true CN207648178U (en) | 2018-07-24 |
Family
ID=62876858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721899053.7U Active CN207648178U (en) | 2017-12-29 | 2017-12-29 | A kind of balanced valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207648178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469503A (en) * | 2019-09-18 | 2019-11-19 | 湖南机油泵股份有限公司 | A kind of two-stage variable control system based on variable-displacement pump |
| CN111720381A (en) * | 2020-06-29 | 2020-09-29 | 潍柴动力股份有限公司 | Balance valve, hydraulic control system and engineering machinery |
-
2017
- 2017-12-29 CN CN201721899053.7U patent/CN207648178U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469503A (en) * | 2019-09-18 | 2019-11-19 | 湖南机油泵股份有限公司 | A kind of two-stage variable control system based on variable-displacement pump |
| CN110469503B (en) * | 2019-09-18 | 2024-04-02 | 湖南机油泵股份有限公司 | Two-stage variable control system based on variable displacement pump |
| CN111720381A (en) * | 2020-06-29 | 2020-09-29 | 潍柴动力股份有限公司 | Balance valve, hydraulic control system and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A balance valve Effective date of registration: 20220530 Granted publication date: 20180724 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: HUNAN HONGHUI TECHNOLOGY Co.,Ltd. Registration number: Y2022430000036 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230621 Granted publication date: 20180724 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: HUNAN HONGHUI TECHNOLOGY Co.,Ltd. Registration number: Y2022430000036 |