CN202971370U - Balanced active control type cartridge valve - Google Patents
Balanced active control type cartridge valve Download PDFInfo
- Publication number
- CN202971370U CN202971370U CN 201220652870 CN201220652870U CN202971370U CN 202971370 U CN202971370 U CN 202971370U CN 201220652870 CN201220652870 CN 201220652870 CN 201220652870 U CN201220652870 U CN 201220652870U CN 202971370 U CN202971370 U CN 202971370U
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- valve
- chamber
- valve pocket
- pilot control
- spool
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- Expired - Fee Related
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a balanced active control type cartridge valve, which comprises a valve sleeve, a valve core and a spring, wherein the valve core is slidably arranged in a valve cavity of the valve sleeve; the valve sleeve is provided with an axial main oil port and a radial main oil port; the rear part of the valve cavity is partitioned into a pilot control opening cavity and a pilot control closing cavity through a boss on the valve core; the valve sleeve is provided with a pilot valve oil port corresponding to the pilot control opening cavity and the pilot control closing cavity respectively; the spring is arranged in a spring mounting cavity in the rear end of the valve core; the rear end of the boss is provided with an annular extension part with an external diameter smaller than internal diameter of the valve cavity; the rear end part of the valve cavity is fixedly provided with a guide sleeve; a pilot control closing cavity is formed by the valve cavity between the boss and the guide sleeve; and the valve core is axially provided with a through hole. The valve core can be reliably closed without being affected by pressure and can make quick response, so that the time for opening and closing is greatly shortened; the motion state of the valve core is easy to adjust and control, so that the impact and the vibration are reduced and the noise is reduced; the quantity of oil required by pilot control is less, and the energy consumption is reduced.
Description
Technical field
The utility model relates to a kind of hydraulic control component, is specifically related to a kind of balanced type ACTIVE CONTROL type cartridge valve.
Background technique
Be illustrated in figure 1 as existing ACTIVE CONTROL type cartridge valve, it mainly comprises valve pocket 1, spool 2, spring 3 and guide pin bushing, and wherein: spool 2 is slidably arranged in the valve pocket 11 of valve pocket 1; The front portion of the corresponding valve pocket 11 of valve pocket 1 is provided with axial main hydraulic fluid port AA and radially main hydraulic fluid port BB; The rear portion of valve pocket 11 is separated into by the boss 21 that is positioned at the outside, spool rear end that pilot control is opened chamber WW and pilot control is closed chamber XX, and the valve pocket 1 described pilot control of correspondence is opened chamber WW and pilot control and closed chamber XX and be respectively equipped with pilot valve hydraulic fluid port 12; Described spring 3 is arranged in the spring fitting chamber 22 of spool rear end.As shown in Figures 2 and 3, this ACTIVE CONTROL type cartridge valve is inserted in the installation cavity 41 of valve piece 4, and this valve piece corresponding shaft is respectively equipped with connection oil duct 42 to main hydraulic fluid port AA, radially main hydraulic fluid port BB and two pilot valve hydraulic fluid ports 12.During work, entered by pilot valve 5 output hydraulic pressure oil that pilot control is opened chamber WW and pilot control is closed chamber XX to control spool to the opening and closing of communicating passage between axial main hydraulic fluid port AA and radially main hydraulic fluid port BB.But there is following technical problem in the cartridge valve of this kind structure:
1, because the stressed of spool is unbalanced, the impact that the closed condition of main valve can be stressed, if axial main hydraulic fluid port AA place and pilot control are closed the pressure ratio at XX place, chamber and are closed the sectional area ratio of chamber XX and axial main hydraulic fluid port AA less than pilot control, the hydraulic coupling at axial main hydraulic fluid port AA place can be closed the hydraulic coupling (hydraulic coupling=pressure * sectional area) at XX place, chamber greater than pilot control, causes spool to be in opening state and can not close.
2, open chamber WW and pilot control and close the sectional area of chamber XX and differ larger due to pilot control, cause the motion state of spool to be difficult to adjust and control, easily produce shock and vibration.
3, to close the sectional area of chamber XX larger due to pilot control, and when causing spool is carried out closing motion, required oil inlet quantity is larger, and the shut-in time is larger; When spool is carried out breakdown action, oil drain quantity is also larger, causes main valve open speed slow.
4, to close the sectional area of chamber XX larger due to pilot control, and spool is closed with the required oil mass of breakdown action larger, makes pilot control oil circuit fuel consumption larger, consumes energy also larger.
The model utility content
The purpose of this utility model is to provide a kind of balanced type ACTIVE CONTROL type cartridge valve simple in structure, to solve the deficiencies in the prior art part.
For achieving the above object, the utility model adopts following technological scheme:
A kind of balanced type ACTIVE CONTROL type cartridge valve, comprise valve pocket, spool and spring, described spool is slidably arranged in the valve pocket of valve pocket, the front portion of the corresponding valve pocket of described valve pocket is provided with axial main hydraulic fluid port and radially main hydraulic fluid port, the rear portion of described valve pocket is separated into pilot control unlatching chamber by the boss that is positioned at the outside, spool rear end and pilot control is closed the chamber, the corresponding described pilot control of described valve pocket is opened chamber and pilot control and is closed the chamber and be respectively equipped with the pilot valve hydraulic fluid port, and described spring is arranged in the spring fitting chamber of spool rear end; Described boss rear end is provided with an external diameter than valve pocket internal diameter circlet type extension part; The rearward end of described valve pocket is fixedly installed one and slides for described ring-like extension part and wear wherein guide pin bushing; Valve pocket between described boss and guide pin bushing consists of described pilot control and closes the chamber; Described poppet shaft is to offering a through hole that is communicated with spool front-end face and spring fitting chamber.
As preferably, described pilot control is opened the corresponding spool external diameter in chamber and is equated with the external diameter that described pilot control is closed the corresponding ring-like extension part in chamber.
As preferably, the axis of described through hole and the dead in line of spool.
As preferably, the outside end face of described guide pin bushing is concordant with the rear end end face of described valve pocket.
Further, also comprise a valve piece, be provided with in described valve piece for valve pocket plug-in mounting installation cavity and corresponding described axial main hydraulic fluid port, radially main hydraulic fluid port and two pilot valve hydraulic fluid ports wherein and be respectively equipped with the connection oil duct.
As preferably, the rearward end of the corresponding valve pocket of described installation cavity is provided with the aperture counterbore little than the valve pocket external diameter.
As preferably, the external diameter of the corresponding ring-like extension part in chamber is closed in the aperture of described counterbore greater than pilot control.
The utility model is owing to adopting said structure, and spool both sides lifting surface area is equated, stress balance, spool can not be stressed impact and reliably close; Spool can respond fast, greatly shortens the time of opening and closing; The motion state of spool is easy to adjust and controls, and has reduced shock and vibration, has reduced noise; The required oil mass of pilot control is less, has reduced energy consumption.
Description of drawings
Fig. 1 is the structural representation of existing ACTIVE CONTROL type cartridge valve.
Fig. 2 is the structural representation after existing ACTIVE CONTROL type cartridge valve is inserted to the valve piece.
Fig. 3 is that the oil circuit of existing ACTIVE CONTROL type cartridge valve is controlled schematic diagram.
Fig. 4 is structural representation of the present utility model.
Fig. 5 is the structural representation after the utility model is inserted to the valve piece.
Fig. 6 is that oil circuit of the present utility model is controlled schematic diagram.
In figure:
The 1-valve pocket; The 11-valve pocket; 12-pilot valve hydraulic fluid port; The 2-spool; The 21-boss; 22-spring fitting chamber; The 23-through hole; The ring-like extension part of 24-; The 3-spring; 4-valve piece; The 41-installation cavity; The 42-communicating passage; The 43-counterbore; The 5-pilot-actuated valve; The 6-guide pin bushing; The axial main hydraulic fluid port of AA-; The radially main hydraulic fluid port of BB-; The XX-pilot control is closed the chamber; The WW-pilot control is opened the chamber; The XP-counter balance pocket.
Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail.
Embodiment
As shown in Figure 1, a kind of balanced type ACTIVE CONTROL type cartridge valve described in the utility model mainly is comprised of valve pocket 1, spool 2, spring 3 and guide pin bushing 6.
Be provided with valve pocket 11 in valve pocket 1, the front portion of the corresponding valve pocket 11 of valve pocket 1 is provided with axial main hydraulic fluid port AA and the radially main hydraulic fluid port BB that is communicated with valve pocket 11.Spool 2 is slidably arranged in valve pocket 11, and its rear end axially forms one towards valve core inside and for spring 3, wherein spring fitting chamber 22 is installed.Spool 2 inner shafts are to offering a through hole 23 that is communicated with spool front-end face and spring fitting chamber, the dead in line of the axis of this through hole 23 and spool 2.The outer side surface of spool 2 radially extends to form a boss 21, and the rear end of this boss 21 is provided with an external diameter than valve pocket 11 internal diameter circlet type extension parts 24.Guide pin bushing 6 is fixedly installed on the rearward end of valve pocket 11, and having on it slides for ring-like extension part 24 wears wherein through hole, and the outside end face of guide pin bushing 6 is concordant with the rear end end face of valve pocket 1.The valve pocket gap pilot control unlatching chamber WW of boss 21 front ends, and the valve pocket gap between boss and guide pin bushing consists of pilot control and closes chamber XX, and pilot control is opened the corresponding spool external diameter of chamber WW and equated with the external diameter that pilot control is closed the corresponding ring-like extension part 24 of chamber XX.1 pair of valve pocket should pilot control be opened chamber WW and pilot control and is closed chamber XX and offer respectively the pilot valve hydraulic fluid port 12 that is communicated with it.
As shown in Figure 2, the utility model is to be plugged in the installation cavity 41 of valve piece 4, and these valve piece 4 corresponding shaft are respectively equipped with connection oil duct 42 to main hydraulic fluid port AA, radially main hydraulic fluid port BB and two pilot valve hydraulic fluid ports 12.Arriving first the corresponding connection oil duct that is communicated with two pilot valve hydraulic fluid ports of control valve 5 is arranged on valve piece 4.In addition, the rearward end of the installation cavity 41 corresponding valve pockets of this valve piece 4 need be provided with an aperture and close the counterbore 43 of the corresponding ring-like extension part external diameter in chamber greater than pilot control, and this counterbore 43 plays putting spring and consists of counter balance pocket XP.And guide pin bushing also plays the effect that the isolation pilot control is closed chamber XX and counter balance pocket XP except playing the spool guiding.
Working procedure of the present utility model is as follows:
As shown in Figure 3, close chamber XX and pilot control to pilot control respectively and open chamber WW output hydraulic pressure oil and promote spool and close or open communicating passage between axial main hydraulic fluid port AA and radially main hydraulic fluid port BB by arriving first control valve 5.Intercommunicating pore due to axial main hydraulic fluid port AA by spool is communicated with counter balance pocket XP, and the lifting surface area of axial main hydraulic fluid port AA equates with the lifting surface area of counter balance pocket XP, makes spool both sides stress balance, and spool can reliably be closed, and impact is not stressed.And the sectional area that pilot control is closed chamber XX and pilot control unlatching chamber WW is equal, and the motion state of spool is easy to adjust and controls, and has reduced shock and vibration, reduces noise.Simultaneously, because pilot control of the present utility model is closed much smaller than unbalanced valve of chamber XX, the control oil mass that needs still less, the spool response is faster, the opening and closing time is shorter, has reduced energy consumption.
Claims (7)
1. balanced type ACTIVE CONTROL type cartridge valve, comprise valve pocket, spool and spring, described spool is slidably arranged in the valve pocket of valve pocket, the front portion of the corresponding valve pocket of described valve pocket is provided with axial main hydraulic fluid port and radially main hydraulic fluid port, the rear portion of described valve pocket is separated into pilot control unlatching chamber by the boss that is positioned at the outside, spool rear end and pilot control is closed the chamber, described valve pocket corresponding described pilot control unlatching chamber and pilot control are closed the chamber and are respectively equipped with the pilot valve hydraulic fluid port, described spring is arranged in the spring fitting chamber of spool rear end, it is characterized in that, described boss rear end is provided with an external diameter than valve pocket internal diameter circlet type extension part, the rearward end of described valve pocket is fixedly installed one and slides for described ring-like extension part and wear wherein guide pin bushing, valve pocket between described boss and guide pin bushing consists of described pilot control and closes the chamber, described poppet shaft is to offering a through hole that is communicated with spool front-end face and spring fitting chamber.
2. a kind of balanced type ACTIVE CONTROL type cartridge valve according to claim 1, is characterized in that, described pilot control is opened the corresponding spool external diameter in chamber and equated with the external diameter that described pilot control is closed the corresponding ring-like extension part in chamber.
3. a kind of balanced type ACTIVE CONTROL type cartridge valve according to claim 1, is characterized in that the axis of described through hole and the dead in line of spool.
4. a kind of balanced type ACTIVE CONTROL type cartridge valve according to claim 1, is characterized in that, the outside end face of described guide pin bushing is concordant with the rear end end face of described valve pocket.
5. a kind of balanced type ACTIVE CONTROL type cartridge valve according to claim 4, it is characterized in that, also comprise a valve piece, be provided with in described valve piece for valve pocket plug-in mounting installation cavity and corresponding described axial main hydraulic fluid port, radially main hydraulic fluid port and two pilot valve hydraulic fluid ports wherein and be respectively equipped with the connection oil duct.
6. a kind of balanced type ACTIVE CONTROL type cartridge valve according to claim 5, is characterized in that, the rearward end of the corresponding valve pocket of described installation cavity is provided with the aperture counterbore little than the valve pocket external diameter.
7. a kind of balanced type ACTIVE CONTROL type cartridge valve according to claim 6, is characterized in that, the external diameter of the corresponding ring-like extension part in chamber is closed in the aperture of described counterbore greater than pilot control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652870 CN202971370U (en) | 2012-11-30 | 2012-11-30 | Balanced active control type cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220652870 CN202971370U (en) | 2012-11-30 | 2012-11-30 | Balanced active control type cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971370U true CN202971370U (en) | 2013-06-05 |
Family
ID=48512454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220652870 Expired - Fee Related CN202971370U (en) | 2012-11-30 | 2012-11-30 | Balanced active control type cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971370U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104948769A (en) * | 2015-06-24 | 2015-09-30 | 奇瑞汽车股份有限公司 | Cartridge valve and control method |
| CN105757031A (en) * | 2014-12-19 | 2016-07-13 | 佛山市荞野伺服系统科技有限公司 | Fast-response laborsaving-speed-regulation cartridge valve |
| CN108692037A (en) * | 2018-07-06 | 2018-10-23 | 佛山信卓派思机械科技有限公司 | A kind of pilot-operated type fluid-controlled cut-off valve |
| CN109737112A (en) * | 2019-01-30 | 2019-05-10 | 广东科达洁能股份有限公司 | A kind of super-pressure dynamic valve |
| CN109958777A (en) * | 2017-12-26 | 2019-07-02 | 丹佛斯有限公司 | Differential-pressure bypass valve and cold water or the heat pump unit circulatory system |
| CN111594566A (en) * | 2020-05-19 | 2020-08-28 | 常州普宸电子有限公司 | Damping valve |
| CN113623350A (en) * | 2021-08-12 | 2021-11-09 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
-
2012
- 2012-11-30 CN CN 201220652870 patent/CN202971370U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757031A (en) * | 2014-12-19 | 2016-07-13 | 佛山市荞野伺服系统科技有限公司 | Fast-response laborsaving-speed-regulation cartridge valve |
| CN104948769A (en) * | 2015-06-24 | 2015-09-30 | 奇瑞汽车股份有限公司 | Cartridge valve and control method |
| CN109958777A (en) * | 2017-12-26 | 2019-07-02 | 丹佛斯有限公司 | Differential-pressure bypass valve and cold water or the heat pump unit circulatory system |
| CN108692037A (en) * | 2018-07-06 | 2018-10-23 | 佛山信卓派思机械科技有限公司 | A kind of pilot-operated type fluid-controlled cut-off valve |
| CN109737112A (en) * | 2019-01-30 | 2019-05-10 | 广东科达洁能股份有限公司 | A kind of super-pressure dynamic valve |
| CN111594566A (en) * | 2020-05-19 | 2020-08-28 | 常州普宸电子有限公司 | Damping valve |
| CN113623350A (en) * | 2021-08-12 | 2021-11-09 | 常州普宸电子有限公司 | Built-in adjustable electromagnetic valve |
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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: 20130605 Termination date: 20201130 |