CN1029332C - Electro-hydraulic quick acting and heavy flow oil drain valve - Google Patents
Electro-hydraulic quick acting and heavy flow oil drain valve Download PDFInfo
- Publication number
- CN1029332C CN1029332C CN 93109383 CN93109383A CN1029332C CN 1029332 C CN1029332 C CN 1029332C CN 93109383 CN93109383 CN 93109383 CN 93109383 A CN93109383 A CN 93109383A CN 1029332 C CN1029332 C CN 1029332C
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- CN
- China
- Prior art keywords
- valve core
- oil
- big
- poppet valve
- valve
- 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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- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000001172 regenerating effect Effects 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The present invention relates to an electro-hydraulic quick acting and heavy flow oil drain valve which comprises that a large cone valve core is arranged in a valve body and forms a valve port with a step of the valve body, the upper end of the large cone valve core is sheathed with a large spring, and a bradawl valve core which has a end surface contacted with an electromagnet armature and the other surface contacted with a small spring is arranged in an upper end hole of the large cone valve core and forms a valve port with the step of the large cone valve core. Mechanical regenerative feedback is used between the large cone valve core and the bradawl valve core, an electromagnet armature touches the bradawl valve core, and the large cone valve core is rapidly opened under the action of the regenerative feedback to rapidly drain oil in heavy flow. The present invention can be widely applied to the hydraulic pressure operating mechanisms of high-tension circuit breakers, emergent driving systems, safety devices, etc.
Description
The present invention relates to a kind of electrichydraulic control quick acting and heavy flow oil drain valve.
The electric liquid acting and heavy flow oil drain valve that uses is to adopt electromagnet as electromechanical converter at present, amplifies through multistage hydraulic again, opens valve port by cone valve at last, carries out big flow oil extraction.Because the method that adopts multistage hydraulic to amplify, every process one-level hydraulic pressure amplifies, and all need expend the regular hour, therefore is difficult to satisfy the hydraulic system of some fast big flow oil extraction.
The objective of the invention is: between the big or small poppet valve core of draining valve, adopt mechanical positive feedback, touch little poppet valve core, make big poppet valve core under the effect of positive feedback, open valve port rapidly, reach fast big flow oil extraction by electromagnet.
Technological scheme of the present invention is: it comprises is equipped with big poppet valve core 5 in the valve body 1, and forms valve port 2 with the step of valve body 1, and big poppet valve core 5 upper ends are with big spring 6, and throttle orifice 20 two ends are connected oil pocket 13 and oil pocket 19 respectively.In the upper end hole of big poppet valve core 5, the conelet spool 8 that an end face can contact with electromagnet armature, the other end contacts with little spring 7 is housed, and form valve port 9 with the step of big poppet valve core 5, oilhole 4 is communicated with oil back chamber 3, oilhole 12 two ends are connected oil pocket 11 and oil pocket 13 respectively, the diameter of valve port 9 is greater than the diameter d of conelet spool 8, and the oil pressure useful area of big poppet valve core 5 is greater than the oil pressure useful area of big poppet valve core 5 in the oil suction chamber 19 in the oil pocket 13.
The present invention compares with background technique, and the useful effect that has is: owing to adopt mechanical positive feedback between the big or small cone valve in the valve body, electromagnet touches little poppet valve core, and big poppet valve core is opened rapidly under the effect of positive feedback, reaches fast big flow oil extraction.The present invention can be widely should be in hydraulic operating mechanism of high voltage circuit breaker, in the equipment such as urgent drive system and safety installations.
Below in conjunction with accompanying drawing, provide embodiments of the invention.
Accompanying drawing: structure principle chart of the present invention.
Embodiments of the invention are: as shown in drawings, have the bar oil pocket and the no bar oil pocket of oil hydraulic cylinder 16 all are under the high pressure, imitate area less than rodless cavity owing to there is the bar oil pocket to be pressed with, piston rod is released, oil suction chamber 19, oil pocket 13 and oil pocket 11 all are under the high pressure, owing to be contained in the oil pressure useful area of big poppet valve core 5 in oil pocket 13 in the valve body 1 greater than the oil pressure useful area that is advancing in the chamber 19, valve port 9 diameters of conelet spool 8 are greater than the diameter d of conelet spool 8, and the bottom of conelet spool 8 is by the oilhole 4 no oil pressure that communicates with oil back chamber 3, so all close at the effect lower valve port 9 and the primary valve 2 of oil pressure.When electromagnet 10 gets, armature movement, promote conelet spool 8, produce very little displacement, valve port 9 is opened slightly, the pressure oil of oil pocket 13 is by oilhole 12, oil pocket 11, flow back to fuel tank from valve port 9, oil pocket 13 beginning decompressions, big poppet valve core 5 is in the direction displacement of the high pressure oil effect lower edge of oil suction chamber 19 arrow 14, simultaneously impel valve port 9 further to open again, the oil pressure of oil pocket 13 is by oilhole 12, oil pocket 11 and further to open big valve port 9 decompressions faster, this also promotes big poppet valve core 5 further to accelerate the direction displacement along arrow 14 again, and that more impels valve port 9 opens the formation positive feedback, opens primary valve 2 rapidly, the high pressure oil of oil hydraulic cylinder 16 rodless cavities is by oil suction chamber 19, primary valve 2, oil back chamber 3 rapid oil extraction oil sump tanks, the piston of oil hydraulic cylinder 16 along arrow 18 opposite direction rapid movements, moves to the end up to the piston of oil hydraulic cylinder 16 along arrow 18 opposite directions under the effect of the pressure oil of oil sources 17.This moment, the rodless cavity oil of oil hydraulic cylinder 16 was zero, oil suction chamber 19, oil pocket 13 and oil pocket 11 oil pressure also are zero, under the effect of big spring 6, big poppet valve core 5 is along arrow 14 opposite direction displacements, close primary valve 2, this moment electromagnet 10 dead electricity, under the effect of little spring 7, conelet spool 8 is along arrow 14 equidirectional displacements, close port 9.When electric liquid two position two-way valve 15 electric, the high pressure oil of oil sources 17 outputs enters the rodless cavity of oil hydraulic cylinder 16 by electric liquid two position two-way valve 15, simultaneously, high pressure oil is by throttle orifice 20, oilhole 12, making oil pocket 13, oil pocket 11 and oil suction chamber 19 all is high pressure.Because the useful area of big poppet valve core 5 is greater than the useful area of big poppet valve core 5 in the oil suction chamber 19 in the oil pocket 13, primary valve 2 is closed, the diameter of same valve port 9 is closed at the effect lower valve port 9 of oil pressure greater than the diameter d of conelet spool 8, and the piston of oil hydraulic cylinder 16 is released along the equidirectional of arrow 18.
Claims (1)
- A kind of electro-hydraulic quick acting and heavy flow oil drain valve, it comprises is equipped with big poppet valve core [5] in the valve body [1], and form valve port [2] with the step of valve body [1], big poppet valve core [5] upper end is with big spring [6], throttle orifice [20] two ends are connected oil pocket [13] and oil pocket [19] respectively, feature of the present invention is: in the upper end hole of big poppet valve core [5] end face being housed can contact with electromagnet armature, the little poppet valve core [8] that the other end contacts with little spring [7], and form valve port [9] with the step of big poppet valve core [5], oilhole [4] is communicated with oil back chamber [3], oilhole [12] two ends are connected oil pocket [11] and oil pocket [13] respectively, the diameter of valve port [9] is greater than the diameter d of little poppet valve core [8], and the oil pressure useful area of big poppet valve core [5] is greater than the oil pressure useful area of big poppet valve core [5] in the oil suction chamber [19] in the oil pocket [13].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109383 CN1029332C (en) | 1993-07-29 | 1993-07-29 | Electro-hydraulic quick acting and heavy flow oil drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93109383 CN1029332C (en) | 1993-07-29 | 1993-07-29 | Electro-hydraulic quick acting and heavy flow oil drain valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1081748A CN1081748A (en) | 1994-02-09 |
| CN1029332C true CN1029332C (en) | 1995-07-12 |
Family
ID=4987592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93109383 Expired - Fee Related CN1029332C (en) | 1993-07-29 | 1993-07-29 | Electro-hydraulic quick acting and heavy flow oil drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029332C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010040163A2 (en) * | 2008-10-10 | 2010-04-15 | Robert Bosch Gmbh | Fuel supply system for heavy oil common rail injection systems |
| CN103075537B (en) * | 2013-02-05 | 2015-04-01 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Bidirectional integrated opposed valve, high pressure fuel inlet and return linkage control system and control method |
| CN112032377B (en) * | 2020-08-21 | 2021-09-14 | 浙江大学 | Quick-response pilot operated safety valve and system overpressure quick protection method |
-
1993
- 1993-07-29 CN CN 93109383 patent/CN1029332C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1081748A (en) | 1994-02-09 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |