CN201539460U - Mass flow hydraulic drive two-position three-way directional valve - Google Patents
Mass flow hydraulic drive two-position three-way directional valve Download PDFInfo
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- CN201539460U CN201539460U CN2009203049616U CN200920304961U CN201539460U CN 201539460 U CN201539460 U CN 201539460U CN 2009203049616 U CN2009203049616 U CN 2009203049616U CN 200920304961 U CN200920304961 U CN 200920304961U CN 201539460 U CN201539460 U CN 201539460U
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Abstract
A mass flow hydraulic drive two-position three-way directional valve is characterized in that two throttling channel groups are arranged in the middle of a main valve core; two throttling channel groups on two sides of a center line SS of the main valve core are respectively a mass flow oil inlet groove and a general flow oil inlet groove; two throttling channel groups in the middle of the main valve core are respectively in combination with a mass flow oil inlet throttling edge in the middle of the valve body and a general flow oil inlet throttling edge to form two main valve ports; two guide valve throttling apertures are arranged on the left side of the main valve core; and the guide valve throttling aperture on the left end of the main valve core and the guide valve throttling edge on the left end of the valve body form a guide valve port. The mass flow hydraulic drive two-position three-way directional valve has advantages of rapid work, convenient and reliable crash-stop at random, high efficiency, perfect manufacturability, small vibration and simple structure, and greatly promotes the operating efficiency and the integral performance of the engineering machine main engine.
Description
Technical field
The utility model relates to a kind of hydraulicdirectional control valve, particularly relates to a kind of big flow two-bit triplet selector valve that surges.
Background technique
The working efficiency of construction machinery hydraulic system, large size machine tool hydraulic equipment, operation comfort, control characteristic, safety reliability etc. depend on the performance of hydraulic control valve to a great extent, hydraulicchange-over valve, proportional multi-path valve, etc. the key device of type systematic hydraulic control valve for this reason.At present, the control valve of construction machinery hydraulic system adopts multi-way valve more, but multi-way valve generally can not be realized sharp work in particular cases and stopping rapidly arbitrarily easily and reliably, therefore often increases a hydraulicchange-over valve to increase work efficiency in hydraulic system.Because general hydraulicchange-over valve, can make system such as engineering machinery occur such as not stopping rapidly arbitrarily easily and reliably, stopping that hydraulic shock constantly is big, system vibration is big, thereby bring problems such as safety reliability is not high to systems such as engineering machinery.
Summary of the invention
But the purpose of this utility model provide a kind of sharp work and stop rapidly arbitrarily easily and reliably, efficient height, good manufacturability, vibration big flow little, simple in structure surge the two-bit triplet selector valve.
Solution of the present utility model is such: there are two throttling groove groups at the middle part of main valve plug, two throttling groove groups of main valve plug center line SS both sides are respectively big flow oil-feed tank, general flow oil-feed tank, and two throttling groove groups at main valve plug middle part have constituted two primary valves with the big flow meter in limit at valve body middle part, general flow meter in limit respectively.
The left end of main valve plug has two pilot valve throttle orifices, and the pilot valve throttling limit of the pilot valve throttle orifice of main valve plug left end and valve body left end has constituted a pilot valve mouth.
Primary valve throttling groove group on the utility model main valve plug is that U type throttling groove is arranged, make main valve when the opening and closing process, the load oil cylinder that main valve drove presents acceleration or deceleration characteristic gradually, therefore thereby guaranteed moment of opening or closing at main valve plug, the load oil cylinder all has good robust motion at starting, operation and dwell period; Primary valve throttling groove on the main valve plug is shallow U-groove bevel type, fluid flows stable in throttling groove and throttling groove itself has the two-step throttle effect, flow and be not prone to air pocket, thereby reduced the Cavitation Noise and the hydrodynamic noise of valve, dark U-groove bevel type structure can make simultaneously that the power of surging of main valve plug is very little; General flow oil-feed tank 9c is longer than the axial length of big flow oil-feed tank 9d, form asymmetric layout in center line SS both sides, and spool neck 9e length compares greater than 2 with its diameters, make that the big flow oiling valve in the left side flow area of making a slip of the tongue is more much bigger than the general flow oiling valve in the right side flow area of making a slip of the tongue, thereby realized big flow control; Poppet port is positive opening form, when effectively having guaranteed guide's oil circuit fuel cut-off, the rapid pressure release of right side guide's oil circuit, the timely repairing of left side guide's oil circuit, thereby make main valve plug under spring action, reliably reply meta apace, when the unexpected fuel feeding in guide oil road, the initial acceeleration of main valve plug is unlikely excessive, has avoided the set forward phenomenon of main valve plug simultaneously; The present invention can significantly improve the working efficiency and the complete machine performance of hydraulic systems such as engineering machinery, has remarkable advantages such as vibration damping, reliability height, good manufacturability, cost be lower, can be widely used in engineering machinery or the high-volume hydraulic control system as control valve.
The utility model has the advantages that can solve engineering machinery realize sharp work and stop rapidly arbitrarily easily and reliably, problem such as high efficiency, good manufacturability, vibration are little, simple in structure, the present invention can greatly promote the working efficiency and the overall performance of engineering machinery main frame.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a hydraulic schematic diagram of the present utility model.
Accompanying drawing 2 is structural representations of the present utility model.
Accompanying drawing 3 is circumferentially deploying figure of main valve plug 9.
Accompanying drawing 4 is the A-A sectional views in the accompanying drawing 3.
Embodiment
In the accompanying drawing of present embodiment, 1, oil hydraulic pump, 2, multiple directional control valve, 3, the big flow two-bit triplet selector valve that surges, 4, hydraulic jack, 5, spring seat, 6, left end cap, 7, spring, 8, valve body, 9, valve core, 10, right end cap, 11, guide's oil circuit W, 9a, pilot valve throttle orifice, 9b, pilot valve throttle orifice, 9c, big flow oil-feed tank, 9d, general flow oil-feed tank.
The utility model includes spring seat 5, left end cap 6, spring 7, valve body 8, main valve plug 9, right end cap 10, there are two throttling groove groups at the middle part of main valve plug 9, two throttling groove groups of main valve plug 9 center line SS both sides are respectively big flow oil-feed tank 9C, general flow oil-feed tank 9d, and two throttling groove groups at main valve plug 9 middle parts have constituted two primary valves with the big flow meter in limit 8b at valve body 8 middle parts, general flow meter in limit 8c respectively.
The left end of main valve plug 9 has two pilot valve throttle orifice 9a, 9b, and pilot valve throttle orifice 9a, the 9b of main valve plug 9 left ends and the pilot valve throttling limit 8a of valve body 8 left ends have constituted a pilot valve mouth.
Big flow oil-feed tank 9c on the main valve plug 9, general flow oil-feed tank 9d are U-groove bevel, and U-groove bevel is shallow/deep groove type, and promptly the degree of depth of U-groove bevel is greater than in width dimensions.
General flow oil-feed tank 9c is longer than the axial length of big flow oil-feed tank 9d, forms asymmetric layout in center line SS both sides, and spool neck 9e length compares greater than 2 with its diameters.
Big flow oil-feed tank 9c and big flow meter in limit 8b oil sealing length be on the occasion of, promptly valve port is for bearing opening form; Oil sealing length between general oil-feed tank 9d and the general flow meter in limit 8c is negative value, and promptly its valve port is positive opening form.
On the spool 9 poppet port is arranged, pilot valve throttle orifice 9a, 9b are shaped as elongated pass throttle orifice, and throttle orifice length and its diameters are than greater than 4.
When spool was in meta, the oil sealing length between pilot valve throttle orifice 9a, 9b and the pilot valve throttling limit 8a was negative value, and promptly the pilot valve mouth is positive opening form; Spool be opened to maximum position the time, the oil sealing length between pilot valve throttle orifice 9a, 9b and the pilot valve throttling limit 8a be on the occasion of, promptly the pilot valve mouth is negative opening form.
Claims (8)
1. big flow two-bit triplet selector valve that surges, include spring seat (5), left end cap (6), spring (7), valve body (8), main valve plug (9), right end cap (10), there are two throttling groove groups at the middle part that it is characterized in that main valve plug (9), two throttling groove groups of main valve plug (9) center line SS both sides are respectively big flow oil-feed tank (9C), general flow oil-feed tank (9d), and two throttling groove groups at main valve plug (9) middle part have constituted two primary valves with the big flow meter in limit (8b) at valve body (8) middle part, general flow meter in limit (8c) respectively.
2. the big flow according to claim 1 two-bit triplet selector valve that surges, the left end that it is characterized in that main valve plug (9) has two pilot valve throttle orifices (9a), (9b), and the pilot valve throttle orifice (9a) of main valve plug (9) left end, (9b) have constituted a pilot valve mouth with the pilot valve throttling limit (8a) of valve body (8) left end.
3. the big flow according to claim 1 two-bit triplet selector valve that surges is characterized in that main valve plug (9) is connected with spring (7) by its left end, and the elastic force of spring (7) remains on the meta of valve body (8).
4. the big flow according to claim 1 two-bit triplet selector valve that surges, it is characterized in that the big flow oil-feed tank (9c) on the main valve plug (9), general flow oil-feed tank (9d) are U-groove bevel, and U-groove bevel is a shallow/deep groove type, and promptly the degree of depth of U-groove bevel is greater than in width dimensions.
5. according to claim 1 or the 4 described big flows two-bit triplet selector valve that surges, it is characterized in that general flow oil-feed tank (9c) is longer than the axial length of big flow oil-feed tank (9d), form asymmetric layout in center line SS both sides, spool neck (9e) length compares greater than 2 with its diameters.
6. the big flow according to claim 1 two-bit triplet selector valve that surges, it is characterized in that big flow oil-feed tank (9c) and big flow meter in limit (8b) oil sealing length on the occasion of, promptly valve port is negative opening form; Oil sealing length between general oil-feed tank (9d) and the general flow meter in limit (8c) is negative value, and promptly its valve port is positive opening form.
7. the big flow according to claim 2 two-bit triplet selector valve that surges is characterized in that on the spool (9) poppet port being arranged, and pilot valve throttle orifice (9a), (9b) are shaped as elongated pass throttle orifice, and throttle orifice length and its diameters are than greater than 4.
8. the big flow according to claim 2 two-bit triplet selector valve that surges, when it is characterized in that spool is in meta, the oil sealing length between pilot valve throttle orifice (9a), (9b) and the pilot valve throttling limit (8a) is negative value, promptly the pilot valve mouth is positive opening form; Spool be opened to maximum position the time, the oil sealing length between pilot valve throttle orifice (9a), (9b) and the pilot valve throttling limit (8a) be on the occasion of, promptly the pilot valve mouth is negative opening form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203049616U CN201539460U (en) | 2009-06-24 | 2009-06-24 | Mass flow hydraulic drive two-position three-way directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203049616U CN201539460U (en) | 2009-06-24 | 2009-06-24 | Mass flow hydraulic drive two-position three-way directional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201539460U true CN201539460U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203049616U Expired - Fee Related CN201539460U (en) | 2009-06-24 | 2009-06-24 | Mass flow hydraulic drive two-position three-way directional valve |
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| Country | Link |
|---|---|
| CN (1) | CN201539460U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554643A (en) * | 2011-12-19 | 2012-07-11 | 台州市盛业设备制造有限公司 | Multi-station machine tool combined hydraulic control valve |
| CN103498950A (en) * | 2013-10-06 | 2014-01-08 | 太原科技大学 | Hydraulic direction-changing valve of special structure |
| CN104235095A (en) * | 2013-08-19 | 2014-12-24 | 江苏恒立液压有限公司 | Dual-control multi-position reversing hydraulic device |
| CN108953270A (en) * | 2018-08-24 | 2018-12-07 | 东莞海特帕沃液压科技有限公司 | A kind of control valve |
| CN112696172A (en) * | 2020-11-03 | 2021-04-23 | 中国海洋石油集团有限公司 | Electro-hydraulic compound control underground decoding device and decoding method thereof |
| CN114962678A (en) * | 2022-07-28 | 2022-08-30 | 中国船舶重工集团公司第七一九研究所 | Adjusting control valve and parameter design method thereof |
-
2009
- 2009-06-24 CN CN2009203049616U patent/CN201539460U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554643A (en) * | 2011-12-19 | 2012-07-11 | 台州市盛业设备制造有限公司 | Multi-station machine tool combined hydraulic control valve |
| CN102554643B (en) * | 2011-12-19 | 2016-09-07 | 台州市盛业设备制造有限公司 | Multi-station machine tool combined hydraulic control valve |
| CN104235095A (en) * | 2013-08-19 | 2014-12-24 | 江苏恒立液压有限公司 | Dual-control multi-position reversing hydraulic device |
| CN103498950A (en) * | 2013-10-06 | 2014-01-08 | 太原科技大学 | Hydraulic direction-changing valve of special structure |
| CN108953270A (en) * | 2018-08-24 | 2018-12-07 | 东莞海特帕沃液压科技有限公司 | A kind of control valve |
| CN112696172A (en) * | 2020-11-03 | 2021-04-23 | 中国海洋石油集团有限公司 | Electro-hydraulic compound control underground decoding device and decoding method thereof |
| CN114962678A (en) * | 2022-07-28 | 2022-08-30 | 中国船舶重工集团公司第七一九研究所 | Adjusting control valve and parameter design method thereof |
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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: 20100804 Termination date: 20150624 |
|
| EXPY | Termination of patent right or utility model |