CN101614229B - Pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve - Google Patents
Pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve Download PDFInfo
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- CN101614229B CN101614229B CN2009103048444A CN200910304844A CN101614229B CN 101614229 B CN101614229 B CN 101614229B CN 2009103048444 A CN2009103048444 A CN 2009103048444A CN 200910304844 A CN200910304844 A CN 200910304844A CN 101614229 B CN101614229 B CN 101614229B
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention discloses a pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve, which comprises a valve body, a cone valve in the valve body, a cone valve connecting rod for connecting the valve body and the cone valve, a sleeve and a spring between the cone valve and an inner end cover, a piston in a cone valve control switch, a permanent magnet positioned at the front end of the piston, and a hydraulic oil channel communicated with a connecting channel of a hydraulic oil cylinder, wherein a cone valve driving rod connected with the cone valve connecting rod is connected with the end surface of the permanent magnet. The valve is characterized in that the outer wall of the hydraulic oil channel is wound with an electrified coil, the cone valve is provided with a hydraulic oil pressure-supplementing channel and a pressure-releasing channel which are crossways staggered, and the valve body is provided with a pressure-supplementing inlet and a pressure-releasing outlet of hydraulic oil. The valve has the bidirectional conduction function of selectively performing pressure supplementing and pressure releasing, can ensure the stability of the pressure in the hydraulic oil cylinder, indirectly control the pressure in the hydraulic oil cylinder through the electric current, and ensure that the control precision is higher and the performance is steadier; and the valve improves the safety of the operation of the hydraulic oil cylinder.
Description
Technical field
The present invention relates to a kind of electromagnetic hydraulic valve, relate in particular to a kind of ftercompction and pressure release double control electromagnetic hydraulic valve.
Background technique
Traditional hydrovalve is the one-way valve that is made of parts such as valve body, piston, springs.It is to control the break-make of hydraulic oil channel and then the pressure in the control oil hydraulic cylinder by the elastic force of spring, because spring is a kind of fatiguability, the easy element that lost efficacy, so there is unstability in this controlling method, especially spring its precision after long-term the use can reduce greatly, thereby make the error of one-way valve in the hydraulic control process bigger than normal, very end and losing efficacy.00221193.9 disclose a kind of Electromagnetic Control hydrovalve, it is made up of valve body, valve seat, guiding valve, armature, concentrating flux sleeve and electromagnet etc.But in same Hydraulic Power Transmission System, can in time recompense in the time of not only will guaranteeing the oil hydraulic cylinder pressure release sometimes, but also require pressure release in time when hydraulic pressure is too high, prevent that oil hydraulic cylinder from damaging because of pressure is excessive.In prior art, also there is not at present to realize simultaneously the electromagnetic hydraulic valve of ftercompction and the two controls of pressure release.
Summary of the invention
The object of the invention is to provide a kind of ftercompction and pressure release double control electromagnetic hydraulic valve.To realize that selectivity carries out two control two-way admittance functions of ftercompction and pressure release, to realize stablizing of oil hydraulic cylinder internal pressure; And the realization High Accuracy Control, use stable.
Technological scheme of the present invention is: comprise valve body, cone valve in the valve body, the cone valve connecting rod that connects valve body and cone valve, sleeve between cone valve and the inner end cap and spring, piston in the cone valve control switch, be positioned at the permanent magnet of piston nose, the hydraulic oil runner that is communicated with the connecting passage of hydraulic jack, the cone valve driveshaft that links to each other with the cone valve connecting rod links to each other with the end face of permanent magnet, it is characterized in that: be wound with hot-wire coil at the flow of pressurized pipeline outer wall, on cone valve, have and be cross staggered hydraulic oil ftercompction passage and pressure release passage, on valve body, be provided with the ftercompction inlet and the pressure release outlet of hydraulic oil.
Be provided with control hydraulic oil runner between the connecting passage of described hydraulic oil runner and hydraulic jack, the hydraulic oil in the control hydraulic oil runner acts on the other end of piston.
Leave the gap between described cone valve front end and the valve body, leave leakage of oil in the bottom, gap and reclaim mouth.
Described cone valve control switch is disc, in the control switch outside magnetic field shielding can is installed.
Piston in the described cone valve control switch is rounded, is with seal ring on the piston.
Be provided with the location shoulder between described control hydraulic oil channel and the piston.
During use, the magnetic field that electric current in hydraulic oil runner exterior loop produces is to distribute ringwise uniformly, size by electric current in the control coil, pass through the suffered resistance of permanent magnet control piston of piston nose again, the cone valve driveshaft that links to each other with the cone valve connecting rod links to each other with permanent magnet, hydraulic oil in the control hydraulic oil runner that links to each other with the hydraulic jack connecting passage acts on the other end of piston, and the difference of itself and the permanent magnet active force in magnetic field promotes piston motion.When the active force of hydraulic oil during greater than magnetic force, cone valve is rotated counterclockwise under the drive of transmission system, and the pressure release passage on pressure release outlet, the cone valve, hydraulic jack connecting passage are communicated with, hydraulic jack by the pressure release outlet to the low pressure area pressure release.When the active force of hydraulic oil during less than magnetic force, cone valve turns clockwise under the drive of transmission system, and the ftercompction passage on ftercompction outlet, the cone valve, hydraulic jack connecting passage are communicated with, high-pressure and hydraulic oil by the ftercompction inlet to the hydraulic jack ftercompction.
The present invention compares with common one-way valve, except unidirectional conducting function, also have selectivity and carry out the two-way admittance function of ftercompction and pressure release, can guarantee the stable of hydraulic jack internal pressure no matter the hydraulic jack internal pressure is higher or on the low side, thereby stopped traditional dependence spring and come the break-make of controlling non-return valve and then the unstability of the interior pressure of control hydraulic jack, and control pressure in the hydraulic jack indirectly by electric current, and make control accuracy higher, performance is more stable; Improved the Security of hydraulic jack operation.
Description of drawings
Fig. 1 is cross-section structure and embodiment's schematic representation of pressure retaining valve;
Fig. 2 is the generalized section of A-A among Fig. 1.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
See figures.1.and.2:
This example has on valve body 1 between cone valve 5 and valve body 1 inner end cap 4 in ftercompction inlet 2 and pressure release outlet 3, the valve body and is provided with sleeve 7 and spring 8, leave gap 6 between valve between cone valve 5 front ends and the valve body, this gap can guarantee that cone valve 5 wearing and tearing backs move down, and guarantee the break-in of cone valve 5 and valve body 1 under upper end sleeve 7, spring 8 effects.The bottom in gap 6 is provided with leakage of oil and reclaims mouthfuls 9 between valve, has to be cross staggered hydraulic oil ftercompction path 10 and pressure release passage 11 on cone valve, and hydraulic oil runner 12 is communicated with connecting passage 14 with hydraulic jack by control hydraulic oil runner 13.The cone valve 5 in valve body 1 be connected with cone valve driveshaft 21 by cone valve connecting rod 16; Be provided with seal washer 17 between inner valve body end cap and valve body, hydraulic oil runner 12 outer walls are wound with hot-wire coil 15, and cone valve control switch 20 is disc, and the piston 18 in the cone valve control switch is rounded, also is with seal washer 17 on the piston 18; Piston 18 front ends are equipped with permanent magnet 19, and the cone valve driveshaft 21 that links to each other with the cone valve connecting rod links to each other for nonmagnetic substance and with the end face of permanent magnet 19, leave location shoulder 22 between control hydraulic oil runner 13 and piston 18.In the outside of cone valve control switch 20 magnetic field shielding can 23 is installed.
When the active force of hydraulic oil during greater than magnetic force, cone valve driveshaft 21 drives cone valve 5 by cone valve connecting rod 16 and is rotated counterclockwise, pressure release passage 11 on pressure release outlet this moment 3, the cone valve 5 is communicated with the connecting passage 14 of hydraulic jack, and hydraulic jack exports 3 to the low pressure area pressure release by pressure release.When the active force of hydraulic oil during less than magnetic force, cone valve 5 turns clockwise under the drive of transmission system, and ftercompction path 10 on ftercompction inlet 2, the cone valve 5 and hydraulic jack connecting passage 14 are communicated with, high-pressure and hydraulic oil by the ftercompction inlet to the hydraulic jack ftercompction.Thereby realize the two-way admittance function that selectivity is carried out ftercompction and pressure release.
Claims (5)
1. ftercompction and pressure release double control electromagnetic hydraulic valve, comprise valve body, cone valve in the valve body, the cone valve connecting rod that connects valve body and cone valve, sleeve between cone valve and the inner end cap and spring, piston in the cone valve control switch, be positioned at the permanent magnet of piston nose, the hydraulic oil runner that is communicated with the connecting passage of hydraulic jack, the cone valve driveshaft that links to each other with the cone valve connecting rod links to each other with the end face of permanent magnet, it is characterized in that: be wound with hot-wire coil at the hydraulic oil flow pipeline outer wall, on cone valve, have and be cross staggered hydraulic oil ftercompction passage and pressure release passage, on valve body, be provided with the ftercompction inlet and the pressure release outlet of hydraulic oil;
Be provided with control hydraulic oil runner between the connecting passage of described hydraulic oil runner and hydraulic jack, the hydraulic oil in the control hydraulic oil runner acts on the other end of piston.
2. according to described a kind of ftercompction of claim 1 and pressure release double control electromagnetic hydraulic valve, it is characterized in that, leave the gap between described cone valve front end and the valve body, leave leakage of oil in the bottom, gap and reclaim mouth.
3. according to described a kind of ftercompction of claim 1 and pressure release double control electromagnetic hydraulic valve, it is characterized in that described cone valve control switch is disc, the magnetic field shielding can is installed in the control switch outside.
4. according to described a kind of ftercompction of claim 1 and pressure release double control electromagnetic hydraulic valve, it is characterized in that the piston in the described cone valve control switch is ring, is with seal ring on the piston.
5. according to described a kind of ftercompction of claim 1 and pressure release double control electromagnetic hydraulic valve, it is characterized in that, be provided with the location shoulder between control hydraulic oil runner and the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103048444A CN101614229B (en) | 2009-07-27 | 2009-07-27 | Pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103048444A CN101614229B (en) | 2009-07-27 | 2009-07-27 | Pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614229A CN101614229A (en) | 2009-12-30 |
| CN101614229B true CN101614229B (en) | 2011-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103048444A Active CN101614229B (en) | 2009-07-27 | 2009-07-27 | Pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101614229B (en) |
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2009
- 2009-07-27 CN CN2009103048444A patent/CN101614229B/en active Active
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| Publication number | Publication date |
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| CN101614229A (en) | 2009-12-30 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGSHA DIPU MECHANICAL TECHNOLOGY CO., LTD. Assignor: Li Xinqiao Contract record no.: 2012430000005 Denomination of invention: Pressure-supplementing and pressure-releasing double control electromagnetic hydraulic valve Granted publication date: 20110413 License type: Exclusive License Open date: 20091230 Record date: 20120227 |
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| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: CHANGSHA DIPU MECHANICAL TECHNOLOGY CO., LTD. Assignor: Li Xinqiao Contract record no.: 2012430000005 Date of cancellation: 20131115 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
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Owner name: HENGTIAN CHUANGFENG HEAVY INDUSTRY CO., LTD. Free format text: FORMER OWNER: LI XINQIAO Effective date: 20131230 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 410100 CHANGSHA, HUNAN PROVINCE TO: 224100 YANCHENG, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131230 Address after: 224100 Dafeng Industrial Park office, Dafeng City, Jiangsu Province Patentee after: CHTC CHUANG FENG HEAVY INDUSTRY CO., LTD. Address before: 410100 No. 3 East six line, Changsha economic and Technological Development Zone, Hunan Patentee before: Li Xinqiao |