CN202833386U - Slide valve type hydraulic valve and engineering machinery - Google Patents
Slide valve type hydraulic valve and engineering machinery Download PDFInfo
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- CN202833386U CN202833386U CN 201220482768 CN201220482768U CN202833386U CN 202833386 U CN202833386 U CN 202833386U CN 201220482768 CN201220482768 CN 201220482768 CN 201220482768 U CN201220482768 U CN 201220482768U CN 202833386 U CN202833386 U CN 202833386U
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Abstract
The utility model provides a slide valve type hydraulic valve and engineering machinery. The slide valve type hydraulic valve comprises a valve body, a valve core and a driving mechanism, wherein the valve core is of a split type structure, the middle part of the valve body is provided with an oil return port, and working oil ports and a high pressure oil port are sequentially arranged from the oil return port to the end portion of the valve body. According to the slide valve type hydraulic valve, a middle oil passage of the valve body is arranged to be the oil return port, two sides of the valve body are provided with the working oil ports, the outermost of the valve body is provided with the high pressure oil port, and when the oil port distribution mode is compared with other hydraulic valves with split type valve cores, the width of the valve body is decreased, the structure is compact and the size is small and exquisite.
Description
Technical field
The utility model relates to hydraulic transmission and control technique field, particularly a kind of sliding valve style hydrovalve and engineering machinery.
Background technique
Existing sliding valve style hydrovalve mainly is made of spool, valve body and drive unit, and the distribution of its oilhole is generally: middle be the P mouth, the both sides is A, B mouth, and outermost is the T mouth, and valve body directly contacts with spool, does not have valve pocket.The spool of this hydrovalve is longer, because coaxality is had relatively high expectations, difficulty of processing is larger, in the situation that matching gap is less, spool is easily stuck, and owing to there not being valve pocket, if the lumen pore of spool is worn, whole valve body will be scrapped.
Other has a kind of sliding valve style hydrovalve to adopt Split type valve core and split type valve pocket to address the above problem, but oil duct is unloading port in the middle of this hydrovalve, the both sides is high-pressure mouth, actuator port A, B mouth toward the outside again, outermost is return opening, the hydraulic fluid port irrational distribution of this hydrovalve causes the width of whole hydrovalve larger.
The model utility content
In view of this, the utility model is intended to propose a kind of sliding valve style hydrovalve and engineering machinery, can not only solve that spool is long, difficulty of processing more greatly, the easily higher problem of stuck, scrap cost, and compact structure, volume be small and exquisite.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of sliding valve style hydrovalve comprises valve body, spool and drive unit, and described spool is split-type structural, and is provided with return opening at described valve body middle part, sequentially is provided with actuator port and high pressure hydraulic fluid port by described return opening to valve end.
Further, also include the valve pocket that is arranged in the valve body, described valve pocket is arranged between spool and the valve body.
Further, described valve pocket comprises identical and symmetrical the first valve pocket of structure and the second valve pocket, and described the first valve pocket and the second valve pocket cooperatively interact towards the end face of valve inner, is connected with described drive unit towards the end face of valve end.
Further, described spool comprises that structure is identical and is symmetrical set the first spool and the second spool in valve pocket, and described the first spool and the second spool cooperatively interact towards the end face of valve inner, is connected with described drive unit towards the end face of valve end.
Further, described drive unit is manual operating device, calutron, spring assembly, hydraulic pressure installation or its combination.
Further, described drive unit is the hydraulic pilot device that is provided with spring.
Further, described drive unit comprises spring strut, outer spring and inner spring, described spring strut is the tubular structure that is arranged on described valve end, and described outer spring and inner spring are sleeved in the described spring strut from outside to inside, also is provided with the guide oil hydraulic fluid port in the exterior edge face of this spring strut.
Further, the two ends of described outer spring are arranged with respectively spring seat.
On the other hand, the utility model also provides a kind of engineering machinery that is provided with aforesaid sliding valve style hydrovalve.
Further, described engineering machinery is hoist.
With respect to prior art, the utlity model has following advantage:
1, the spool of sliding valve style hydrovalve described in the utility model is split-type structural, and therefore the length of every section spool shortens, and difficulty of processing reduces;
2, sliding valve style hydrovalve described in the utility model is provided with split type valve pocket, if valve pocket weares and teares, can directly change valve pocket, and cost is lower;
3, sliding valve style hydrovalve described in the utility model is made as return opening with the middle oil duct of valve body, the both sides is actuator port, and outermost is the high pressure hydraulic fluid port, and this hydraulic fluid port distribution form is compared with the hydrovalve that other have Split type valve core, reduced the valve body width, compact structure, volume are small and exquisite.
Description of drawings
The accompanying drawing that consists of a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the sectional view of the described sliding valve style hydrovalve of the utility model embodiment.
Description of reference numerals:
The 1-valve body, 2-the first spool, 3-the second spool, 4-the first valve pocket, 5-the second valve pocket, 6-the first spring seat, 7-outer spring, 8-inner spring, 9-the second spring seat, 10-spring strut, T-return opening, A, B-actuator port, P-high pressure hydraulic fluid port.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature among the embodiment in the utility model can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 is the sectional view of the described sliding valve style hydrovalve of the present embodiment, and as shown in FIG., this sliding valve style hydrovalve comprises valve body 1, the first valve pocket 4, the second valve pocket 5, the first spool 2, the second spool 3 and drive unit.This drive unit is in the present embodiment for being provided with the hydraulic pilot device of spring, comprise spring strut 10, outer spring 7, inner spring 8, the first spring seat 6 and the second spring seat 9, this outer spring 7 and inner spring 8 are sleeved in the spring strut 10 from outside to inside, this first spring seat 6 and the second spring seat 9 are set in respectively the two ends of this outer spring 7, also are provided with the guide oil hydraulic fluid port in the exterior edge face of this spring strut 10.This first valve pocket 4 is identical with the second valve pocket 5 structures and be symmetrical set in valve body 1, and this first valve pocket 4 and the end face of the second valve pocket 5 towards valve body 1 inside cooperatively interact, end face and described outer spring 7 butts towards valve body 1 end.This first spool 2 is identical with the second spool 3 structures and be symmetrical set in the first valve pocket 4, the second valve pocket 5, and this first spool 2 and the end face of the second spool 3 towards valve body 1 inside cooperatively interact, end face and described inner spring 8 butts towards valve body 1 end.Be provided with oil return inlet T at this valve body 1 middle part, two next doors are actuator port A and actuator port B, and outermost is high pressure hydraulic fluid port P, and such hydraulic fluid port distributes the width of valve body 1 is reduced greatly.
The working principle of the described sliding valve style hydrovalve of the present embodiment is: the pilot pressure that is added in two spool outer ends remains high pressure, with prevent because of return pressure too high, cause two spools separately, if spool need to be to an end motion, the pilot pressure of this end is reduced to zero and is got final product; When right-hand member pressure slowly reduced, two spools moved right gradually, and final A communicates with T, and P communicates with B; When left end pressure slowly reduced, spool was moved to the left gradually, and final P communicates with A, and B communicates with T.
In other embodiments, the inner spring 8 of drive unit can remove, and also can increase damping at the guide oil hydraulic fluid port; Control gear can also be manually control, Electromagnetic Control, spring control or its combination etc.
Except above-mentioned sliding valve style hydrovalve, the utility model also provides a kind of hoist that is provided with above-mentioned sliding valve style hydrovalve, and the structure of other each several part of this hoist is with reference to prior art, and this paper repeats no more.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. sliding valve style hydrovalve, comprise valve body (1), spool and drive unit, it is characterized in that, described spool is split-type structural, and be provided with return opening at described valve body (1) middle part, sequentially be provided with actuator port and high pressure hydraulic fluid port by described return opening to valve body (1) end.
2. sliding valve style hydrovalve according to claim 1 is characterized in that, also includes the valve pocket that is arranged in the valve body (1), and described valve pocket is arranged between spool and the valve body (1).
3. sliding valve style hydrovalve according to claim 2, it is characterized in that, described valve pocket comprises identical and symmetrical the first valve pocket of structure (4) and the second valve pocket (5), described the first valve pocket (4) and the second valve pocket (5) cooperatively interact towards the inner end face of valve body (1), and the end face towards valve body (1) end is connected with described drive unit.
4. according to claim 1,2 or 3 described sliding valve style hydrovalves, it is characterized in that, described spool comprises that structure is identical and is symmetrical set the first spool (2) and the second spool (3) in valve pocket, described the first spool (2) and the second spool (3) cooperatively interact towards the inner end face of valve body (1), and the end face towards valve body (1) end is connected with described drive unit.
5. according to claim 1,2 or 3 described sliding valve style hydrovalves, it is characterized in that, described drive unit is manual operating device, calutron, spring assembly, hydraulic pressure installation or its combination.
6. sliding valve style hydrovalve according to claim 5 is characterized in that, described drive unit is the hydraulic pilot device that is provided with spring.
7. sliding valve style hydrovalve according to claim 6, it is characterized in that, described drive unit comprises spring strut (10), outer spring (7) and inner spring (8), described spring strut (10) is for being arranged on the tubular structure of described valve body (1) end, described outer spring (7) and inner spring (8) are sleeved in the described spring strut (10) from outside to inside, also are provided with the guide oil hydraulic fluid port in the exterior edge face of this spring strut (10).
8. sliding valve style hydrovalve according to claim 7 is characterized in that, the two ends of described outer spring (7) are arranged with respectively spring seat.
9. an engineering machinery is characterized in that, described engineering machinery is provided with the described sliding valve style hydrovalve of any one in the claim 1 to 8.
10. engineering machinery according to claim 9 is characterized in that, described engineering machinery is hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482768 CN202833386U (en) | 2012-09-20 | 2012-09-20 | Slide valve type hydraulic valve and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220482768 CN202833386U (en) | 2012-09-20 | 2012-09-20 | Slide valve type hydraulic valve and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833386U true CN202833386U (en) | 2013-03-27 |
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ID=47945101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220482768 Expired - Fee Related CN202833386U (en) | 2012-09-20 | 2012-09-20 | Slide valve type hydraulic valve and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833386U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121244A (en) * | 2014-07-11 | 2014-10-29 | 贵阳华恒机械制造有限公司 | Self-elevating type tower crane hydraulic jacking pump station integrated valve group |
| CN105626885A (en) * | 2014-10-31 | 2016-06-01 | 北京精密机电控制设备研究所 | Slide valve capable of effectively reducing flow force |
| CN109154397A (en) * | 2016-06-10 | 2019-01-04 | 川崎重工业株式会社 | Flow control valve assembly |
| CN111852976A (en) * | 2020-07-16 | 2020-10-30 | 中国石油大学(北京) | Two-position three-way hydraulic change valve |
| CN113154086A (en) * | 2020-12-30 | 2021-07-23 | 中航工业南京伺服控制***有限公司 | Double-system three-section split type slide valve pair and control method |
-
2012
- 2012-09-20 CN CN 201220482768 patent/CN202833386U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121244A (en) * | 2014-07-11 | 2014-10-29 | 贵阳华恒机械制造有限公司 | Self-elevating type tower crane hydraulic jacking pump station integrated valve group |
| CN105626885A (en) * | 2014-10-31 | 2016-06-01 | 北京精密机电控制设备研究所 | Slide valve capable of effectively reducing flow force |
| CN109154397A (en) * | 2016-06-10 | 2019-01-04 | 川崎重工业株式会社 | Flow control valve assembly |
| CN111852976A (en) * | 2020-07-16 | 2020-10-30 | 中国石油大学(北京) | Two-position three-way hydraulic change valve |
| CN113154086A (en) * | 2020-12-30 | 2021-07-23 | 中航工业南京伺服控制***有限公司 | Double-system three-section split type slide valve pair and control method |
| CN113154086B (en) * | 2020-12-30 | 2023-01-17 | 中航工业南京伺服控制***有限公司 | Double-system three-section split type slide valve pair and control method |
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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: 20130327 Termination date: 20150920 |
|
| EXPY | Termination of patent right or utility model |