CN204628745U - A kind of magnetorheological pilot-operated overflow valve - Google Patents
A kind of magnetorheological pilot-operated overflow valve Download PDFInfo
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- CN204628745U CN204628745U CN201520203218.7U CN201520203218U CN204628745U CN 204628745 U CN204628745 U CN 204628745U CN 201520203218 U CN201520203218 U CN 201520203218U CN 204628745 U CN204628745 U CN 204628745U
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- 238000013016 damping Methods 0.000 claims abstract description 33
- 230000005389 magnetism Effects 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 28
- 239000000463 material Substances 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to a kind of magnetorheological pilot-operated overflow valve, belongs to hydraulic transmission technology field.The utility model comprises pilot valve, main valve, it is characterized in that: pilot valve is arranged on main valve upper end, and pilot valve comprises pilot valve valve pocket, left end cap, right end cap, locating stud, magnetic conduction disk, pilot valve core, coil, magnetism resistent ring, seal ring; Main valve comprises valve body of main valve, main valve valve pocket, valve core of main valve, spring, seal ring, damping block, damping hole, plug.Utility model works medium is micron order or nano level magnetic flow liquid; Pilot valve is magnetorheological high-speed switch valve, and without relative movement spool, structure is simple, and control accuracy is high, and the response time is fast; Valve body, spool and iron core adopt high permeability material, improve magnetic property, and upper and lower end cap, positioning disk adopt non-magnet material, reduce leakage field, can improve the utilization ratio of magnetic field energy.
Description
Technical field
The utility model relates to a kind of magnetorheological pilot-operated overflow valve, belongs to hydraulic transmission technology field.
Background technique
Magnetic flow liquid, as the one of intellectual material, according to the rheological effect of magnetic flow liquid, can design the magnetic flow liquid pressure valve without relative motion component, by regulating the size of externally-applied magnetic field to control the flow of magnetic rheological valve, pressure and direction, realizes intelligent control.
At present, the damp channel gap structure mainly cirque structure of magnetorheological pilot-operated overflow valve, coil has unicoil and two coil configuration, and these two kinds of structures all can not solve the too small problem of damping shear force preferably.In order to solve the too small problem of damping shear force thus occur multi-coil structure, although this structure improves damping shear force, the structure of valve becomes complicated thereupon.A kind of magnetorheological pilot-operated overflow valve compared with high damping shear force of this patent design, effectively can solve the too small problem of damping shear force, and the structure of valve is not complicated.
Summary of the invention
The purpose of this utility model is to provide a kind of magnetorheological pilot-operated overflow valve, has cut too small, valve arrangement challenge to solve damping.
The utility model realizes by following technological scheme: a kind of magnetorheological pilot-operated overflow valve, comprise pilot valve, main valve, it is characterized in that: pilot valve is arranged on main valve upper end, pilot valve comprises pilot valve valve pocket 1, left end cap 2, right end cap 3, locating stud 4, magnetic conduction disk 5, pilot valve core 6, coil 7, magnetism resistent ring 8, seal ring 9, coil 7 is wound around and is arranged in the groove offered in the middle part of pilot valve core 6, magnetism resistent ring 8 is arranged in the groove offered in the middle part of pilot valve core 6 and is positioned at coil 7 two ends, for fixed coil 7, magnetic conduction disk 5 is arranged on pilot valve core 6 two ends by locating stud 4, disk damping path clearance is formed between magnetic conduction disk 5 and pilot valve core 6, pilot valve core 6 is arranged in pilot valve valve pocket 1 by interference fit, seal ring 9 is arranged on left end cap 2 respectively, in right end cap 3, left end cap 2, right end cap 3 is fixed on pilot valve valve pocket 1 two ends by interference fit, main valve comprises valve body of main valve 10, main valve valve pocket 11, valve core of main valve 12, spring 13, seal ring 14, damping block 15, damping hole 16, plug 17, main valve valve pocket 11 is arranged in valve body of main valve 10 by Spielpassung, valve core of main valve 12 is arranged in main valve valve pocket 11, spring 13 is arranged in valve core of main valve 12, valve core of main valve 12 lower end is provided with damping hole 16, seal ring 14 is arranged in main valve hair net 11, damping block 15, plug 17 are arranged in valve body of main valve 10 respectively, and pilot valve is arranged on valve body of main valve 10 by left end cap 2, right end cap 3.
A kind of working principle of magnetorheological pilot-operated overflow valve is: during work, when valve interior loop 7 no electric circuit of magnetic flow liquid pilot valve, without magnetic field in the working clearance that magnetic flow liquid flows through, magnetic flow liquid by magnetic field damping force effect, freely can not flow through the pilot valve of magnetic flow liquid pilot operated compound relief valve.When the valve interior loop 7 of magnetic flow liquid pilot valve is energized, pass through electromagnetic induction, magnetic induction line is by cylinder damp channel and disk damping passage, the direction of magnetic induction line is vertical with the flow direction of magnetic flow liquid, magnetic flow liquid is when by cylinder damp channel and disk damping passage, the effect that magnetic suspension particle in magnetic flow liquid is subject to magnetic field forms rapidly the catemer arranged along magnetic direction, magnetic flow liquid viscosity increases rapidly, and increase along with the increase of impressed current (magnetic field), magnetic flow liquid is made to become rapidly semi-solid or solid state by free flowable Newtonian fluid.When impressed current (magnetic field) increases to certain value, the pressure reduction pressure size of magnetic flow liquid in pilot valve can not overcome the intermolecular force of catenation, not by the pilot valve of magnetic flow liquid pilot operated compound relief valve, no longer include the pilot valve of magnetic flow liquid by magnetic flow liquid pilot operated compound relief valve, the pilot valve core of magnetic flow liquid pilot operated compound relief valve is in closed condition, now, the pressure difference at magnetic flow liquid pilot valve two ends reaches maximum value.By the set pressure size regulating the size of pilot valve valve interior loop 7 electric current can set pilot valve, when set pressure lower than pilot valve of the working pressure of system, magnetic flow liquid is not by annular fluid flow gap and radial fluid flow gap, main valve is in closed condition, can not realize overflow, now magnetic flow liquid pilot valve right-hand member pressure, main valve upper cavity pressure are equal with system pressure three pressure.When system working pressure is greater than the set pressure of pilot valve, magnetic flow liquid overcomes magnetic force under pressure, flow through the pilot valve of magnetic flow liquid pilot operated compound relief valve, the right-hand member of pilot valve directly communicates with the epicoele of main valve, two pressure are equal, magnetic flow liquid makes the right-hand member pressure of pilot valve and main valve upper cavity pressure reduce by pilot valve, due to the damping function of main valve plug damping hole, cause the upper cavity pressure of main valve lower than system pressure, valve core of main valve is opened under the effect of pressure difference, magnetic flow liquid realizes overflow, ensures the stability of system works.
The utility model has following beneficial effect compared with prior art:
1, working medium is micron order or nano level magnetic flow liquid;
2, pilot valve is magnetorheological high-speed switch valve, and without relative movement spool, structure is simple, and control accuracy is high, and the response time is fast;
3, valve body, spool and iron core adopt high permeability material, improve magnetic property, and upper and lower end cap, positioning disk adopt non-magnet material, reduce leakage field, can improve the utilization ratio of magnetic field energy;
4, after adding magnetism resistent ring at coil two ends, make the magnetic line of force by annulus and disk damping passage;
5, the magnetic line of force is vertical with it with magnetic line of force direction during disk damping passage through annulus, the out-of-date generation of magnetic current and liquid flow 4 damping shear force.
Accompanying drawing explanation
Fig. 1 is general structure schematic diagram of the present utility model.
In figure, each label is: 1: pilot valve valve pocket, 2: left end cap, 3: right end cap, 4: locating stud, 5: magnetic conduction disk, 6: pilot valve core, 7: coil, 8: magnetism resistent ring, 9: seal ring, 10: valve body of main valve, 11: main valve valve pocket, 12: valve core of main valve, 13: spring, 14: seal ring, 15: damping block, 16: damping hole, 17: plug.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but content of the present utility model is not limited to described scope.
Embodiment: as shown in Figure 1, a kind of magnetorheological pilot-operated overflow valve, comprise pilot valve, main valve, it is characterized in that: pilot valve is arranged on main valve upper end, pilot valve comprises pilot valve valve pocket 1, left end cap 2, right end cap 3, locating stud 4, magnetic conduction disk 5, pilot valve core 6, coil 7, magnetism resistent ring 8, seal ring 9, coil 7 is wound around and is arranged in the groove offered in the middle part of pilot valve core 6, magnetism resistent ring 8 is arranged in the groove offered in the middle part of pilot valve core 6 and is positioned at coil 7 two ends, for fixed coil 7, magnetic conduction disk 5 is arranged on pilot valve core 6 two ends by locating stud 4, disk damping path clearance is formed between magnetic conduction disk 5 and pilot valve core 6, pilot valve core 6 is arranged in pilot valve valve pocket 1 by interference fit, seal ring 9 is arranged on left end cap 2 respectively, in right end cap 3, left end cap 2, right end cap 3 is fixed on pilot valve valve pocket 1 two ends by interference fit, main valve comprises valve body of main valve 10, main valve valve pocket 11, valve core of main valve 12, spring 13, seal ring 14, damping block 15, damping hole 16, plug 17, main valve valve pocket 11 is arranged in valve body of main valve 10 by Spielpassung, valve core of main valve 12 is arranged in main valve valve pocket 11, spring 13 is arranged in valve core of main valve 12, valve core of main valve 12 lower end is provided with damping hole 16, seal ring 14 is arranged in main valve hair net 11, damping block 15, plug 17 are arranged in valve body of main valve 10 respectively, and pilot valve is arranged on valve body of main valve 10 by left end cap 2, right end cap 3.
Claims (1)
1. a magnetorheological pilot-operated overflow valve, comprise pilot valve, main valve, it is characterized in that: pilot valve is arranged on main valve upper end, pilot valve comprises pilot valve valve pocket (1), left end cap (2), right end cap (3), locating stud (4), magnetic conduction disk (5), pilot valve core (6), coil (7), magnetism resistent ring (8), seal ring (9), coil (7) is wound around and is arranged in the groove offered of pilot valve core (6) middle part, magnetism resistent ring (8) is arranged in the groove offered of pilot valve core (6) middle part and is positioned at coil (7) two ends, magnetic conduction disk (5) is arranged on pilot valve core (6) two ends by locating stud (4), disk damping path clearance is formed between magnetic conduction disk (5) and pilot valve core (6), pilot valve core (6) is arranged in pilot valve valve pocket (1) by interference fit, seal ring (9) is arranged on left end cap (2) respectively, in right end cap (3), left end cap (2), right end cap (3) is fixed on pilot valve valve pocket (1) two ends by interference fit, main valve comprises valve body of main valve (10), main valve valve pocket (11), valve core of main valve (12), spring (13), seal ring (14), damping block (15), damping hole (16), plug (17), main valve valve pocket (11) is arranged in valve body of main valve (10) by Spielpassung, valve core of main valve (12) is arranged in main valve valve pocket (11), spring (13) is arranged in valve core of main valve (12), valve core of main valve (12) lower end is provided with damping hole (16), seal ring (14) is arranged in main valve hair net (11), damping block (15), plug (17) are arranged in valve body of main valve (10) respectively, and pilot valve is arranged on valve body of main valve (10) by left end cap (2), right end cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203218.7U CN204628745U (en) | 2015-04-07 | 2015-04-07 | A kind of magnetorheological pilot-operated overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203218.7U CN204628745U (en) | 2015-04-07 | 2015-04-07 | A kind of magnetorheological pilot-operated overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628745U true CN204628745U (en) | 2015-09-09 |
Family
ID=54047776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203218.7U Expired - Fee Related CN204628745U (en) | 2015-04-07 | 2015-04-07 | A kind of magnetorheological pilot-operated overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168306A (en) * | 2016-08-11 | 2016-11-30 | 张广 | A kind of air relief valve based on magnetic rheology effect |
| CN107559257A (en) * | 2017-09-11 | 2018-01-09 | 雷沃重工股份有限公司 | A kind of overflow valve |
-
2015
- 2015-04-07 CN CN201520203218.7U patent/CN204628745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168306A (en) * | 2016-08-11 | 2016-11-30 | 张广 | A kind of air relief valve based on magnetic rheology effect |
| CN107559257A (en) * | 2017-09-11 | 2018-01-09 | 雷沃重工股份有限公司 | A kind of overflow valve |
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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: 20150909 Termination date: 20170407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |