CN2658493Y - Electrohydaulic high-speed open-close valve - Google Patents
Electrohydaulic high-speed open-close valve Download PDFInfo
- Publication number
- CN2658493Y CN2658493Y CN 200320110969 CN200320110969U CN2658493Y CN 2658493 Y CN2658493 Y CN 2658493Y CN 200320110969 CN200320110969 CN 200320110969 CN 200320110969 U CN200320110969 U CN 200320110969U CN 2658493 Y CN2658493 Y CN 2658493Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- switch valve
- driver
- drive
- 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
Links
Images
Landscapes
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model relates to a high-speed electrohydraulic switch valve provided with a valve body. The valve body inside is provided with a movable valve sleeve. The moveable sleeve inside is provided with a valve trim. An ultra magneto-striction rare-earth material is served as a driver. After the output displacement of the driver is amplified through a lever structure, the valve trim of the specially-designed switch valve and the moveable valve sleeve are respectively driven for a relative movement. The driver not only enlarges the current-passing area of the valve, increases the output flow, but also enhances the switching speed of opening or closing the valve because of the relative movement of the valve trim and the valve sleeve. The opening and closing time is smaller than 1 ms. Compared with the prior art, the utility model can greatly increase the pulse-width modulation (PWM) frequency when the electrohydraulic switch valve is applied in a PWM electrohydraulic digital control system because of the improved speed of opening and closing the switch valve, thereby increasing the control precision of the PWM.
Description
Technical field
The utility model relates to a kind of electrohydraulic digital control valve, particularly a kind of novel electric liquid high-speed switch valve.
Background technique
With the immediate prior art of this patent be with electromagnet or piezoelectric crystal material high-speed switch valve as driver.This technology existence ground subject matter is that the switch speed of valve is low, and output flow is little, and consumed power is big.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, proposes a kind of novel electric liquid high-speed switch valve, and it one is the switch speed that will improve switch valve, the 2nd, improve the valve output flow.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of novel electric liquid high-speed switch valve, be characterized in: it is provided with a valve body, be provided with a movable valve pocket in the valve body, in movable valve pocket, spool is housed, one end of movable valve pocket is a closed end, be provided with Returnning spring between spool and the movable valve pocket closed end, the valve rod that is connected with spool passes from the other end of movable valve pocket, the end of valve rod passes valve body and is connected with drive unit outside valve body, be provided with a driveshaft on the valve body of movable valve pocket closed end, driveshaft passes valve body and is connected with another drive unit outside valve body.
The technical problems to be solved in the utility model can also be achieved through the following technical solutions, and described drive unit is two identical rareearth super magnetostrictive drivers.
The technical problems to be solved in the utility model can also be achieved through the following technical solutions, two opposing switch valve body tops that are symmetricly set on of super-magnetostrictive drive, and this output end of driver is joined by leverage and described valve rod and driveshaft.
The technical problems to be solved in the utility model can also be achieved through the following technical solutions, described super-magnetostrictive drive is provided with a base, upwards be provided with a giant magnetostrictive rod at the base middle part, outside giant magnetostrictive rod, be set with drive coil, on drive coil, have industrial coil rack, directly over extension stem, be provided with take-off lever, described extension stem, drive coil, industrial coil rack, take-off lever are contained in the shell, be provided with a prestressing force adjustable cap in the upper end of shell, be provided with loaded spring between take-off lever and the prestressing force adjustable cap.
The utility model with rare earth ultra-magnetostriction material as driver.After the leverage amplification is crossed by the carry-out bit Mobile Communication of this driver, drive the spool and the movable valve pocket relative movement of the switch valve of particular design respectively, the area of passage of valve is increased, improved output flow, but also because the relative movement of spool valve pocket has improved the unlatching of valve or has closed switch speed.Its opening and closing time is less than 1ms.In addition, super mangneto drive dissipation power is less than the piezoelectric crystal driver, the general driver that adopts homemade super magnetostriction material to make, when field current only is 1.6A, just can obtain the displacement about 40 μ m, after magnifiation in depth is 8～10 leverage amplification, reach 0.4～0.5mm again, then the aperture displacement of valve just can reach 0.8～1.0mm.In addition, under same big field current, driving force also can reach 1000N, though after the leverage transmission, dwindled 8～10 times, but still can effectively drive spool and moving valve meeting.
The utility model is compared with existing high-speed switch valve, because the opening and closing switch speed improves, when being applied to PWM electrohydraulic digital control system, pulse width modulation frequency is improved greatly, thereby improve the control accuracy of PWM.
Description of drawings
Fig. 1 is the high-speed switch valve schematic diagram.
Fig. 2 is super mangneto driver principles figure.
Embodiment
A kind of novel electric liquid high-speed switch valve, it is provided with a valve body 10, be provided with a movable valve pocket 9 in the valve body 10, in movable valve pocket 9, spool 2 is housed, one end of movable valve pocket 9 is a closed end, be provided with Returnning spring 8 between spool 2 and movable valve pocket 9 closed ends, the valve rod 7 that is connected with spool 2 passes from the other end of movable valve pocket 9, the end of valve rod 7 passes the valve gap 6 of valve body 10 and is connected with drive unit outside valve body 10, be provided with a driveshaft 3 on the valve body 10 of movable valve pocket 9 closed ends, driveshaft 3 passes valve body 10 and is connected with another drive unit outside valve body 10.Described drive unit is two identical rareearth super magnetostrictive drivers 1.Two super-magnetostrictive drive 1 opposing switch valve body 10 tops that are symmetricly set on, the output terminal of this driver 1 joins by leverage 4 and described valve rod 7 and driveshaft 3.
High-speed switch valve adopts the super mangneto driver 1 of two terminal positioned opposite as shown in Figure 1 as shown in Figure 1, and lever 4 amplifications are crossed by its carry-out bit Mobile Communication, drive spool 2 and 9 relative movement of movable valve pocket respectively.The lever magnification factor is 8.Adjusting screw 5 can be eliminated the relative movement wearing clearance between spool and the movable valve pocket, and makes Returnning spring 8 have precompression.
Described super-magnetostrictive drive 1 is provided with a base 17, upwards be provided with a giant magnetostrictive rod 16 at base 17 middle parts, outside giant magnetostrictive rod 16, be set with drive coil 15, on drive coil 15, have industrial coil rack 14, directly over extension stem 16, be provided with take-off lever 13, described extension stem 16, drive coil 15, industrial coil rack 14, take-off lever 13 are contained in the shell 18, be provided with a prestressing force adjustable cap 11 in the upper end of shell 18, be provided with loaded spring 12 between take-off lever 13 and the prestressing force adjustable cap 11.
Super-magnetostrictive drive as shown in Figure 2,5 is super magnetostriction material φ 12 * 110mm among the figure, its lower end is fixed on the base 17, the upper end adds prestressing force by flexible take-off lever 13 and spring 12 to magnetostriction materials.Be to produce the drive coil 16 that drives the field around the magnetostriction materials.Spring rate is 210N/mm, and precompression is 820N.Relevant field coil parameter is: length L
c=100mm; Internal diameter r=10mm; Inductance L=24.3mH; Coil internal resistance R=18 Ω.Exciting curent I=0～1700mA, according to different magnet excitation frequencies, corresponding pulsed voltage V=0～42v.
Claims (4)
1. novel electric liquid high-speed switch valve, it is characterized in that: it is provided with a valve body (10), be provided with a movable valve pocket (9) in the valve body (10), spool (2) is housed in movable valve pocket (9), one end of movable valve pocket (9) is a closed end, be provided with Returnning spring (8) between spool (2) and movable valve pocket (9) closed end, the valve rod (7) that is connected with spool (2) passes from the other end of movable valve pocket (9), the end of valve rod (7) passes valve body (10) and is connected with drive unit outside valve body (10), be provided with a driveshaft (3) on the valve body (10) of movable valve pocket (9) closed end, driveshaft (3) passes valve body (10) and is connected with another drive unit outside valve body (10).
2. novel electric liquid high-speed switch valve according to claim 1 is characterized in that: described drive unit is two identical super-magnetostrictive drives (1).
3. novel electric liquid high-speed switch valve according to claim 2, it is characterized in that: opposing switch valve body (10) top that is symmetricly set on of two super-magnetostrictive drives (1), the output terminal of this driver (1) joins by leverage (4) and described valve rod (7) and driveshaft (3).
4. novel electric liquid high-speed switch valve according to claim 2, it is characterized in that: described super-magnetostrictive drive (1) is provided with a base (17), upwards be provided with a giant magnetostrictive rod (16) at base (17) middle part, outside giant magnetostrictive rod (16), be set with drive coil (15), on drive coil (15), have industrial coil rack (14), directly over extension stem (16), be provided with take-off lever (13), described extension stem (16), drive coil (15), industry coil rack (14), take-off lever (13) is contained in the shell (18), be provided with a prestressing force adjustable cap (11) in the upper end of shell (18), be provided with loaded spring (12) between take-off lever (13) and the prestressing force adjustable cap (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110969 CN2658493Y (en) | 2003-11-17 | 2003-11-17 | Electrohydaulic high-speed open-close valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320110969 CN2658493Y (en) | 2003-11-17 | 2003-11-17 | Electrohydaulic high-speed open-close valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2658493Y true CN2658493Y (en) | 2004-11-24 |
Family
ID=34343998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320110969 Expired - Fee Related CN2658493Y (en) | 2003-11-17 | 2003-11-17 | Electrohydaulic high-speed open-close valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2658493Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295442C (en) * | 2005-05-31 | 2007-01-17 | 武汉航天波纹管股份有限公司 | Electrohydraulic digital valve at high speed |
| CN101975300A (en) * | 2010-09-27 | 2011-02-16 | 苏明 | Method and device for controlling high-speed electromagnetic switch valve to adapt to pressure change at oil supply port |
| CN103603989A (en) * | 2013-12-03 | 2014-02-26 | 武汉科技大学 | Differential type high-speed switch valve based on magnetic control memory alloy |
| CN107882797A (en) * | 2017-11-08 | 2018-04-06 | 中机生产力促进中心 | Lateral open-type high-speed piezoelectric switch valve |
| CN111750159A (en) * | 2020-07-09 | 2020-10-09 | 四川航天烽火伺服控制技术有限公司 | Novel electromagnetic valve capable of improving thrust of valve element |
-
2003
- 2003-11-17 CN CN 200320110969 patent/CN2658493Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1295442C (en) * | 2005-05-31 | 2007-01-17 | 武汉航天波纹管股份有限公司 | Electrohydraulic digital valve at high speed |
| CN101975300A (en) * | 2010-09-27 | 2011-02-16 | 苏明 | Method and device for controlling high-speed electromagnetic switch valve to adapt to pressure change at oil supply port |
| CN103603989A (en) * | 2013-12-03 | 2014-02-26 | 武汉科技大学 | Differential type high-speed switch valve based on magnetic control memory alloy |
| CN103603989B (en) * | 2013-12-03 | 2015-11-18 | 武汉科技大学 | A kind of differential type high-speed switch valve based on magnetic control memory alloy |
| CN107882797A (en) * | 2017-11-08 | 2018-04-06 | 中机生产力促进中心 | Lateral open-type high-speed piezoelectric switch valve |
| CN107882797B (en) * | 2017-11-08 | 2019-08-06 | 中机生产力促进中心 | Lateral open-type high-speed piezoelectric switch valve |
| CN111750159A (en) * | 2020-07-09 | 2020-10-09 | 四川航天烽火伺服控制技术有限公司 | Novel electromagnetic valve capable of improving thrust of valve element |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101975300A (en) | Method and device for controlling high-speed electromagnetic switch valve to adapt to pressure change at oil supply port | |
| CN2658493Y (en) | Electrohydaulic high-speed open-close valve | |
| KR101328587B1 (en) | Permanent magnet actuator | |
| CN103715870B (en) | Voltage adjuster and resonant gate driver thereof | |
| EP1769576B1 (en) | Device for driving an electromagnet, particularly for operating pumps | |
| CN201051476Y (en) | Quick push machine for breaker | |
| CN201875258U (en) | High-speed switch valve driven by actuator manufactured by rare-earth giant magnetostrictive material | |
| CN200976570Y (en) | High-frequency power amplifier circuit | |
| CN1928370B (en) | Proportion magnetic valve and servo control method for same | |
| CN202612237U (en) | Horizontal leading magneto-rheological inserting type high-speed switching valve | |
| US6886331B2 (en) | Magnetohydraulic motor | |
| CN1866732A (en) | High-frequency power amplifying circuit | |
| CN104037025A (en) | Magnetic control time-delay device | |
| CN218896176U (en) | Power supply load test system | |
| CN205026186U (en) | Giant magnetostrictive driven high speed switch valve | |
| JP4695544B2 (en) | Control method of fuel injection device | |
| CN207353847U (en) | A kind of prefabricated components assembling die power supply unit | |
| CN201820714U (en) | Motor-type high power relay | |
| CN2699453Y (en) | Permanent magnet control mechanism for electric switch | |
| CN200968438Y (en) | Electricity-saving driving structure for electromagnetical element in fuel battery | |
| CN201204555Y (en) | Pulsed power supply unit for high-power electric plastic working | |
| CN218387466U (en) | Delay circuit applied to energy-saving driving of electromagnetic valve | |
| CN216842425U (en) | Hydraulic speed control device | |
| CN2517929Y (en) | Improved double steady-state two-position three-way pulse electromagnetic valve | |
| JP4695543B2 (en) | Fuel injection device and fuel injection control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |