CN201322117Y - Proportional overflow valve - Google Patents
Proportional overflow valve Download PDFInfo
- Publication number
- CN201322117Y CN201322117Y CNU2008201820722U CN200820182072U CN201322117Y CN 201322117 Y CN201322117 Y CN 201322117Y CN U2008201820722 U CNU2008201820722 U CN U2008201820722U CN 200820182072 U CN200820182072 U CN 200820182072U CN 201322117 Y CN201322117 Y CN 201322117Y
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- CN
- China
- Prior art keywords
- valve
- hole
- magnet
- spool
- valve seat
- 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
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Abstract
The utility model relates to a proportional overflow valve comprising an electro-magnet, a valve core (19) and a valve pocket (20), wherein the electro-magnet is connected with the valve pocket (20), the valve core (19) is matched in a dead hole of the valve pocket (20) in a sliding mode, a valve seat (16) whose central hole is a stepped hole is arranged on the upper end surface of the valve core (19), a tapered valve core (9) which is matched and sealed with a small hole is arranged on one end of the small hole of the central hole of the valve seat (16), a radial oil return opening A, an oil outlet B and an oil inlet C are orderly arranged on the side wall of the valve pocket (20) from the top down, the electro-magnet is a proportional electro-magnet (1), a through-hole which is communicated with the oil return opening A is arranged on the side wall of the central hole of the valve seat (16), dead holes are both arranged on the upper and the lower ends of the valve core (19), and damping holes which are communicated with a channel between the oil outlet B and the oil inlet C are respectively arranged on the dead holes on the upper and the lower ends. Compared with the prior art, the proportional overflow valve has the advantages of rapid response speed, good stability and small appearance.
Description
Technical field:
The utility model relates to a kind of proportional pressure control valve that is used for the Control of Automobile automatic speed-changing system.
Background technique:
The proportional pressure control valve of prior art, because the electromagnet of control usefulness is a general electromagnet, and adopts damping plate to come confined liquid in the passage, so speed of response is slow, poor stability and profile are bigger.
The model utility content:
The utility model at above problem provide that a kind of speed of response is fast, good stability and the small and exquisite proportional pressure control valve of profile.
The utility model overcomes the above problems used technological scheme: a kind of proportional pressure control valve with following structure is provided, it comprises electromagnet, spool and valve pocket, described electromagnet is connected with valve pocket, described spool sliding fit is in the blind hole of valve pocket, the upper end surface of spool is provided with the valve seat that center hole is a step hole, one end of valve base center hole aperture is provided with the poppet valve core that matches and seal with aperture, be provided with spring II between spool and the valve seat, be provided with return opening A radially on the sidewall of described valve pocket from top to bottom successively, oil outlet B and filler opening C, described electromagnet is a proportion electro-magnet, the center hole of described proportion electro-magnet is provided with pressure regulating screw from top to bottom, stage clip I and armature, the top of pressure regulating screw is combined with nut; Be provided with stage clip II between described poppet valve core and the armature, be provided with spring I between poppet valve core and the valve seat, and be provided with rubber pad between the inwall of the outer wall of poppet valve core and valve base center hole; The sidewall of valve base center hole is provided with the through hole that communicates with return opening A; The upper and lower end of described spool is equipped with blind hole, and the blind hole of upper and lower end be equipped with oil outlet B and filler opening C between the damping hole that communicates of passage.
Be provided with connecting plate and sealing gasket between described proportion electro-magnet and the valve pocket.
After adopting above structure, the utility model compared with prior art, because what electromagnet adopted is proportion electro-magnet, and adopted damping hole to replace original damping plate, the two ends of spool are provided with blind hole, make spool produce a back pressure in when work, spool moves more stable, and therefore fast, good stability of speed of response of the present utility model and profile are small and exquisite.
As further improvement, be provided with magnetic shield and concentrating flux plate between described armature and the proportion electro-magnet center bore inner wall, concentrating flux plate is located at the outside of magnetic shield, guarantees that armature is flexibly movable, has therefore improved the stability that the utility model uses.
As further improvement, the external circumferential at damping hole place, described spool upper end is provided with filter screen, has therefore improved the reliability of antifouling property of the present utility model, use and has prolonged working life.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
As shown in the figure: 1, proportion electro-magnet, 2, stage clip I, 3, magnetic shield, 4, armature, 5, stage clip II, 6, concentrating flux plate, 7, sealing gasket, 8, rubber pad, 9, poppet valve core, 10, the O RunddichtringO, 11, nut, 12, pressure regulating screw, 13, conductive feet, 14, connecting plate, 15, spring I, 16, valve seat, 17, spring II, 18, filter screen, 19, spool, 20, valve pocket.
Concrete embodiment:
Below in conjunction with accompanying drawing and concrete embodiment, the utility model is described further, but the utility model is not limited to following concrete embodiment:
A kind of as shown in drawings proportional pressure control valve, it comprises electromagnet, spool 19 and valve pocket 20, described electromagnet is connected with valve pocket 20, described spool 19 sliding fits are in the blind hole of valve pocket 20, the upper end surface of spool 19 is provided with the valve seat 16 that center hole is a step hole, be provided with O RunddichtringO 10 between valve seat 16 and the valve pocket 20, one end of valve seat 16 center hole apertures is provided with the poppet valve core 9 that matches and seal with it, be provided with spring II 17 between spool 19 and the valve seat 16, be provided with return opening A radially on the sidewall of described valve pocket 20 from top to bottom successively, oil outlet B and filler opening C, be provided with the passage that opens and closes by spool 19 controls between oil outlet B and the filler opening C, described electromagnet is a proportion electro-magnet 1, and the axis of the axis of proportion electro-magnet 1 center hole and valve pocket 20 blind holes is on same straight line, described proportion electro-magnet 1 comprises plastic packaging, coil, skeleton and housing, and its center hole is provided with pressure regulating screw 12 from top to bottom, stage clip I 2 and armature 4, the top of pressure regulating screw 12 is combined with nut 11, stage clip I 2 one ends prop up pressure regulating screw 12, the other end of stage clip I 2 props up armature 4, the outer surface of proportion electro-magnet 1 is provided with conductive feet 13, be provided with stage clip II 5 between described poppet valve core 9 and the armature 4, and be provided with spring I 15 between the valve seat 16, and be provided with rubber pad 8 between the inwall of the outer wall of poppet valve core 9 and valve seat 16 center holes, the sidewall of valve seat 16 center holes is provided with the through hole that communicates with return opening A, the upper and lower end of described spool 19 is equipped with blind hole, and the blind hole of upper and lower end be equipped with oil outlet B and filler opening C between the damping hole that communicates of passage.
Be provided with connecting plate 14 and sealing gasket 7 between described proportion electro-magnet 1 and the valve pocket 20.
Be provided with magnetic shield 3 and concentrating flux plate 6 between described armature 4 and proportion electro-magnet 1 center bore inner wall, concentrating flux plate 6 is located at the outside of magnetic shield 3.
The external circumferential at damping hole place, described spool 19 upper end is provided with filter screen 18.
Described valve pocket 20 outer surface return opening A, oil outlet B and the mutual downside of asking about filler opening C of filler opening C are equipped with groove, are provided with O RunddichtringO 10 in the groove.
During use, in three grooves of valve outer surface, fill up the O RunddichtringO earlier, insert subsequently in the controlling plumbing fixtures, valve body is fixed by connecting plate with screw, and on conductive feet, inserted prefabricated terminal.During work, oil enters from filler opening C, a part enters into spool upper end blind hole by filter screen and damping hole, because poppet valve core is at the aperture place of the center hole of valve seat sealed aperture, make the oil in the blind hole of spool upper end can't flow to return opening A place, thereby produce the pressure that spool is moved down; A part enters in the blind hole of spool lower end by damping hole, produces the back pressure that spool is moved up; Another part oil is in the passage of oil outlet B and filler opening C, and the pressure of its generation adds that back pressure makes spool overcome spring II and downward oil pressure and moves up, and then the passage of filler opening C and oil outlet B is opened, and oil is gone out from oil outlet B.When the pressure of controlling plumbing fixtures becomes big, control system is given signal of proportion electro-magnet, proportion electro-magnet is controlled the stroke of poppet valve core by the power of electric current, thereby the size of control oil circulation area in the valve seat central small hole, make the oil in the blind hole of spool upper end be back in the fuel tank from return opening A, keep the stable of the oily delivery pressure in oil outlet B place thereby spool is moved with certain flow rate.
Claims (5)
1, a kind of proportional pressure control valve, it comprises electromagnet, spool (19) and valve pocket (20), described electromagnet is connected with valve pocket (20), described spool (19) sliding fit is in the blind hole of valve pocket (20), the upper end surface of spool (19) is provided with the valve seat that center hole is a step hole (16), one end of valve seat (16) center hole aperture is provided with the poppet valve core (9) that matches and seal with aperture, be provided with spring II (17) between spool (19) and the valve seat (16), be provided with return opening A radially on the sidewall of described valve pocket (20) from top to bottom successively, oil outlet B and filler opening C, it is characterized in that: described electromagnet is proportion electro-magnet (1), the center hole of described proportion electro-magnet (1) is provided with pressure regulating screw (12) from top to bottom, stage clip I (2) and armature (4), the top of pressure regulating screw (12) is combined with nut (11); Be provided with stage clip II (5) between described poppet valve core (9) and the armature (4), be provided with spring I (15) between poppet valve core (9) and the valve seat (16), and be provided with rubber pad (8) between the inwall of the outer wall of poppet valve core (9) and valve seat (16) center hole; The sidewall of valve seat (16) center hole is provided with the through hole that communicates with return opening A; The upper and lower end of described spool (19) is equipped with blind hole, and the blind hole of upper and lower end be equipped with oil outlet B and filler opening C between the damping hole that communicates of passage.
2, proportional pressure control valve according to claim 1 is characterized in that: be provided with connecting plate (14) and sealing gasket (7) between described proportion electro-magnet (1) and the valve pocket (19).
3, proportional pressure control valve according to claim 1 is characterized in that: be provided with magnetic shield (3) and concentrating flux plate (6) between described armature (4) and proportion electro-magnet (1) center bore inner wall, concentrating flux plate (6) is located at the outside of magnetic shield (3).
4, proportional pressure control valve according to claim 1 is characterized in that: the external circumferential at damping hole place, described spool (19) upper end is provided with filter screen (18).
5, proportional pressure control valve according to claim 1 and 2 is characterized in that: the downside that described valve pocket (20) outer surface return opening A, oil outlet B and filler opening C reach filler opening C each other is equipped with groove, is provided with O RunddichtringO (10) in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201820722U CN201322117Y (en) | 2008-08-08 | 2008-12-06 | Proportional overflow valve |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820162369.2 | 2008-08-08 | ||
| CN200820162369 | 2008-08-08 | ||
| CNU2008201820722U CN201322117Y (en) | 2008-08-08 | 2008-12-06 | Proportional overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201322117Y true CN201322117Y (en) | 2009-10-07 |
Family
ID=41159500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201820722U Expired - Fee Related CN201322117Y (en) | 2008-08-08 | 2008-12-06 | Proportional overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201322117Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207110A (en) * | 2010-03-29 | 2011-10-05 | 上海立新液压有限公司 | Thread plug-in electromagnetic seat valve |
| CN102797901A (en) * | 2012-08-27 | 2012-11-28 | 湘潭大学 | Bidirectional small low-leakage high-pressure electromagnetic directional valve |
| CN103075378A (en) * | 2011-10-26 | 2013-05-01 | 北京精密机电控制设备研究所 | Filter bypass overflow valve |
| CN103470561A (en) * | 2013-09-03 | 2013-12-25 | 浙江大学 | Proportional overflow valve |
| CN107504006A (en) * | 2017-10-19 | 2017-12-22 | 宁波文泽机电技术开发有限公司 | A kind of normally opened ratio one-way flow valves |
-
2008
- 2008-12-06 CN CNU2008201820722U patent/CN201322117Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207110A (en) * | 2010-03-29 | 2011-10-05 | 上海立新液压有限公司 | Thread plug-in electromagnetic seat valve |
| CN102207110B (en) * | 2010-03-29 | 2014-03-05 | 上海立新液压有限公司 | Thread plug-in electromagnetic seat valve |
| CN103075378A (en) * | 2011-10-26 | 2013-05-01 | 北京精密机电控制设备研究所 | Filter bypass overflow valve |
| CN103075378B (en) * | 2011-10-26 | 2015-04-29 | 北京精密机电控制设备研究所 | Filter bypass overflow valve |
| CN102797901A (en) * | 2012-08-27 | 2012-11-28 | 湘潭大学 | Bidirectional small low-leakage high-pressure electromagnetic directional valve |
| CN102797901B (en) * | 2012-08-27 | 2014-01-29 | 湘潭大学 | Bidirectional small low-leakage high-pressure electromagnetic directional valve |
| CN103470561A (en) * | 2013-09-03 | 2013-12-25 | 浙江大学 | Proportional overflow valve |
| CN103470561B (en) * | 2013-09-03 | 2015-10-21 | 浙江大学 | A kind of proportional pressure control valve |
| CN107504006A (en) * | 2017-10-19 | 2017-12-22 | 宁波文泽机电技术开发有限公司 | A kind of normally opened ratio one-way flow valves |
| CN107504006B (en) * | 2017-10-19 | 2019-07-09 | 杭州富阳中亚阀业有限公司 | A kind of normally opened ratio one-way flow valves |
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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: 20091007 Termination date: 20141206 |
|
| EXPY | Termination of patent right or utility model |