CN201141367Y - Digital hydraulic overflow valve - Google Patents
Digital hydraulic overflow valve Download PDFInfo
- Publication number
- CN201141367Y CN201141367Y CNU2007201052174U CN200720105217U CN201141367Y CN 201141367 Y CN201141367 Y CN 201141367Y CN U2007201052174 U CNU2007201052174 U CN U2007201052174U CN 200720105217 U CN200720105217 U CN 200720105217U CN 201141367 Y CN201141367 Y CN 201141367Y
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- Prior art keywords
- valve
- main valve
- main
- guide
- pilot valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000030279 gene silencing Effects 0.000 claims description 7
- 238000013016 damping Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 3
- 239000007770 graphite material Substances 0.000 claims description 2
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000003628 erosive effect Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
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Abstract
The utility model relates to a digital hydraulic overflow valve which belongs to the hydraulic transmission technical field and comprises a controller, a guide valve and a main valve 3. the controller comprises a step motor; the guide valve comprises a guide sleeve, a guide valve body, a guide valve spring, a guide valve core and a guide valve base; the main valve comprises a main valve sleeve, a main valve spring, a main valve body, a main valve core, a main valve base and a control lever. The rated operation pressure reaches 21 MPa; the rated flow reaches 80L/min. the digital hydraulic overflow valve has the advantages of being used as the hydraulic operation medium without a D/A converter, receiving digital signals directly, high open-loop accuracy, being used as closed-loop control, small leakage, good cavitation erosion property, small vibration, low noise and good operational reliability.
Description
One, technical field:
Belong to hydraulic transmission technology field
Two, technical background: hydraulic transmission technology is to specialize in a science of carrying out energy transfer and conversion with liquid.Hydraulic transmission always with water as working medium because the competition of electric drive technology in addition of its sealing problem, once once causing the hydraulics stagnation.This kind situation is faced upward in the hydraulic pressure installation of bowing at naval's gun turret until the U.S. in 1906 and is replaced water just to be broken as working medium with oil first.This historic change of hydraulic medium, the appearance of oil resistant rubber, and improvement of Manufacturing Technology, progressively having solved a series of technical barriers that comprise sealing problem in the early stage hydraulic pressure transmission device, is the hydraulic transmission epoch of working medium thereby make hydraulics enter main up to now with mineral type hydraulic oil.Yet the serious problems that hydraulic transmission exists befouling environment, easy firing, wastes energy have limited its development to a certain extent and have used.Raising along with progress of science and technology, human environmental protection, energy crisis consciousness; impel people to re-recognize and study with the pure water hydraulics drive technology of pure water as working medium; over nearly 20 years on theory research and using; all obtain continual and steady recovery and development, and become one of hot spot technology in the modern hydraulic transmission technology and new developing direction gradually.Digital valve is simple in structure, cheap, resistance tocrocking is good, reliable operation.The output quantity of digital valve can be accurately, reliably by pulse frequency or width adjusting control, antijamming capability is strong, the ring that stagnates is little, the repeatability height can obtain higher open loop control accuracy.Along with the cheap price of development and raising, particularly single board computer, the single-chip microcomputer of microcomputer, for the digitizing of hydraulic system provides necessary condition.In view of the plurality of advantages of digital water hydraulic control valve and the needs of future development, and relief valve is to use maximum valves in hydraulic system, and therefore researching and developing digital water hydraulic valve relief valve is that very high use value is arranged.
Three, summary of the invention:
1. the purpose of this utility model is a kind of digital water hydraulic relief valve of design, and it is made up of controller, pilot valve, main valve 3 parts.Be a kind of relief valve of the medium of can water working, it does not need D/A converter directly can be connected with computer.Rated working pressure reaches 21MPa, and rated flow reaches 80L/min.
2. Fig. 1 is a composition structural drawing of the present utility model.It is made up of controller, pilot valve and main valve three parts.Controller comprises stepper motor 1, and pilot valve comprises guide sleeve 2, pilot valve body 3, pilot valve spring 4, guide valve core 5, guide valve seat 6, pilot valve damper 7, silencing apparatus 8, main valve comprises main valve body seal ring 9, main valve housing 10, main spool spring 11, main valve body 12, main valve plug 13, the first screw plugs 14, main damping valve device 15, main valve seat 16, main valve seat seal ring 17, controlling rod 18, controlling rod seal ring 19, second screw plug 20, main valve housing seal ring 21, the three screw plugs 22.Stepper motor 1 is fastened on the pilot valve body 3 by bolt, guide sleeve 2 is housed on the stepper motor output shaft, the guide sleeve the other end is pressed on the pilot valve spring 4, the pilot valve spring the other end is pressed on the guide valve core 5, the guide valve core the other end is pressed on the guide valve seat 6, guide valve seat is contained on the pilot valve body 3 by interference fit, the guide valve seat the other end is equipped with pilot valve damper 7 with interference fit, another pilot valve damper is contained on the pilot valve body 3 with interference fit, silencing apparatus is threaded on the pilot valve body 3, pilot valve body and function bolt is installed on the main valve body 12, main spool spring 11 1 ends are pressed on the pilot valve damper 7, the other end is pressed in an end of controlling rod 18, controlling rod is contained on the main valve housing 10, and the other end is pressed on the main valve plug 13, and main valve plug is pressed on the main valve seat 16, it also is installed in the main valve housing 10 by Spielpassung, and main valve seat and main valve housing are installed in the main valve body 12 by interference fit.
When stepper motor obtains control signal pusher action-oriented cover, realize adjusting to the pilot valve amount of spring compression, the pilot valve spring the other end is pressed on guide's spool, thereby regulates the pressure of pilot valve ante-chamber.When system pressure was lower than pilot valve spring set pressure, pilot valve cut out, and cavity pressure equates behind the pressure of pilot valve ante-chamber, ambient systems pressure and the main valve, and main valve plug is closed.When system pressure is higher than the pilot valve set pressure, guide valve core is opened, because the effect of damper makes before the pilot valve cavity pressure be lower than cavity pressure behind the main valve, the press water guide valve pocket of main valve back cavity flows out, the pressure of main valve back cavity is reduced, and this moment, main valve plug was subjected to the ambient pressure effect to open overflow.
When the effect of cavitation erosion monitoring mouth is lower than setting pressure when cavitation erosion monitoring mouthful place's pressure, can improve its pressure, perhaps under the condition of system's permission, carry out pressure by controller and regulate by the mode of extraneous high-pressure induct.
Compare advantage and the good effect that has with known hydrovalve:
1) its can water as hydraulic medium;
2) do not need D/A converter, directly can accept digital signal;
3) it has very high open loop control accuracy, also can do closed loop control;
4) leak for a short time, cavitation resistive property is good, vibrates for a short time, and noise is low, good operating stability.
Four, description of drawings:
Fig. 1 is a plan view of the present utility model, and 1 is stepper motor among the figure, and 2 is guide sleeve, and 3 is the pilot valve body, and 4 is the pilot valve spring, and 5 is guide valve core, and 6 is guide valve seat, and 7 is the pilot valve damper, and 8 is silencing apparatus; 9 is the main valve body seal ring, and 10 is main valve housing, and 11 is main spool spring, and 12 is main valve body, and 13 is main valve plug, 14 is first screw plug, and 15 is the main damping valve device, and 16 is main valve seat, and 17 is the main valve seat seal ring, 18 is controlling rod, and 19 is the controlling rod seal ring, and 20 is second screw plug, and 21 is the main valve housing seal ring.Fig. 2 is the A-A sectional view of Fig. 1, and 22 is the 3rd screw plug among the figure.K is cavitation erosion monitoring mouth, and Q is the main valve cone angle.
Five, embodiment
Digital water hydraulic relief valve as shown in Figure 1, 2, it is made up of controller, pilot valve and main valve three parts.Controller comprises stepper motor 1, and pilot valve comprises guide sleeve 2, pilot valve body 3, pilot valve spring 4, guide valve core 5, guide valve seat 6, pilot valve damper 7, silencing apparatus 8, main valve comprises main valve body seal ring 9, main valve housing 10, main spool spring 11, main valve body 12, main valve plug 13, the first screw plugs 14, main damping valve device 15, main valve seat 16, main valve seat seal ring 17, controlling rod 18, controlling rod seal ring 19, second screw plug 20, main valve housing seal ring 21, the three screw plugs 22.Stepper motor 1 is fastened on the pilot valve body 3 by bolt, guide sleeve 2 is housed on the stepper motor output shaft, the guide sleeve the other end is pressed on the pilot valve spring 4, the pilot valve spring the other end is pressed on the guide valve core 5, the guide valve core the other end is pressed on the guide valve seat 6, guide valve seat is contained on the pilot valve body 3 by interference fit, the guide valve seat the other end is equipped with pilot valve damper 7 with interference fit, another pilot valve damper is contained on the pilot valve body 3 with interference fit, silencing apparatus is threaded on the pilot valve body 3, pilot valve body and function bolt is installed on the main valve body 12, main spool spring 11 1 ends are pressed on the pilot valve damper 7, the other end is pressed in an end of controlling rod 18, controlling rod is contained on the main valve housing 10, and the other end is pressed on the main valve plug 13, and main valve plug is pressed on the main valve seat 16, it also is installed in the main valve housing 10 by Spielpassung, and main valve seat and main valve housing are installed in the main valve body 12 by interference fit.
Main valve cone angle Q is 60 degree, and main valve housing adopts metal-graphite material processing, and main valve plug adopts the Martensitic Stain Less Steel through enhancement process, and hardness is higher, can improve the anti-cavitation erosion and the wire drawing erosion performance of spool.The main valve housing seal ring adopts polytetrafluoroethylmaterial material to utilize its good self lubricity and shock resistance and cushioning effect, improves the robust motion of controlling rod.
Claims (2)
1, a kind of digital water hydraulic relief valve, it is characterized in that: it is by controller, pilot valve and main valve three parts are formed, controller comprises stepper motor (1), pilot valve comprises guide sleeve (2), pilot valve body (3), pilot valve spring (4), guide valve core (5), guide valve seat (6), pilot valve damper (7), silencing apparatus (8), main valve comprises main valve body seal ring (9), main valve housing (10), main spool spring (11), main valve body (12), main valve plug (13), first screw plug (14), main damping valve device (15), main valve seat (16), main valve seat seal ring (17), controlling rod (18), controlling rod seal ring (19), second screw plug (20), main valve housing seal ring (21), the 3rd screw plug (22), stepper motor (1) is fastened on the pilot valve body (3) by bolt, and guide sleeve (2) is housed on the stepper motor output shaft, and the guide sleeve the other end is pressed on the pilot valve spring (4), the pilot valve spring the other end is pressed on the guide valve core (5), the guide valve core the other end is pressed on the guide valve seat (6), and guide valve seat is contained on the pilot valve body (3) by interference fit, and the guide valve seat the other end is equipped with pilot valve damper (7) with interference fit, another pilot valve damper is contained on the pilot valve body (3) with interference fit, silencing apparatus is threaded on the pilot valve body (3), and pilot valve body and function bolt is installed on the main valve body (12), and main spool spring (11) one ends are pressed on the pilot valve damper (7), the other end is pressed in an end of controlling rod (18), controlling rod is contained on the main valve housing (10), and the other end is pressed on the main valve plug (13), and main valve plug is pressed on the main valve seat (16), it also is installed in the main valve housing (10) by Spielpassung, and main valve seat and main valve housing are installed in the main valve body (12) by interference fit.
2, digital water hydraulic relief valve according to claim 1, it is characterized in that: main valve housing (10) adopts the metal-graphite material processing and fabricating, main valve plug (13) adopts through the Martensitic Stain Less Steel of enhancement process and makes, and main valve body seal ring (9) adopts the polytetrafluoroethylmaterial material processing and fabricating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201052174U CN201141367Y (en) | 2007-12-10 | 2007-12-10 | Digital hydraulic overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201052174U CN201141367Y (en) | 2007-12-10 | 2007-12-10 | Digital hydraulic overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141367Y true CN201141367Y (en) | 2008-10-29 |
Family
ID=40069080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201052174U Expired - Fee Related CN201141367Y (en) | 2007-12-10 | 2007-12-10 | Digital hydraulic overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141367Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106820987A (en) * | 2017-03-31 | 2017-06-13 | 苏州咖博士咖啡系统科技有限公司 | A kind of tea infuser storage pressure adjustable apparatus for coffee machine and beverage machine |
| CN107676323A (en) * | 2017-11-03 | 2018-02-09 | 北京天地玛珂电液控制系统有限公司 | A kind of Digital Pressure Regulating Valve |
| CN111022388A (en) * | 2019-11-13 | 2020-04-17 | 南京航空航天大学 | Digital switch type inertia hydraulic converter and working method thereof |
-
2007
- 2007-12-10 CN CNU2007201052174U patent/CN201141367Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106820987A (en) * | 2017-03-31 | 2017-06-13 | 苏州咖博士咖啡系统科技有限公司 | A kind of tea infuser storage pressure adjustable apparatus for coffee machine and beverage machine |
| CN107676323A (en) * | 2017-11-03 | 2018-02-09 | 北京天地玛珂电液控制系统有限公司 | A kind of Digital Pressure Regulating Valve |
| CN107676323B (en) * | 2017-11-03 | 2023-12-29 | 北京天玛智控科技股份有限公司 | Impact test method of hydraulic pump test system |
| CN111022388A (en) * | 2019-11-13 | 2020-04-17 | 南京航空航天大学 | Digital switch type inertia hydraulic converter and working method thereof |
| CN111022388B (en) * | 2019-11-13 | 2021-08-06 | 南京航空航天大学 | Digital switch type inertia hydraulic converter and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yunnan Xingchangjiang Industry Co., Ltd. Assignor: Kunming University of Science and Technology Contract fulfillment period: 2009.9.15 to 2018.10.29 Contract record no.: 2009530000021 Denomination of utility model: Digital hydraulic overflow valve Granted publication date: 20081029 License type: Exclusive license Record date: 20090923 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.9.15 TO 2018.10.29; CHANGE OF CONTRACT Name of requester: YUNNAN XINGCHANGJING INDUSTRY CO.,LTD. Effective date: 20090923 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20101210 |