CN204345041U - Based on the pressure controlled valve of magnetic flow liquid - Google Patents
Based on the pressure controlled valve of magnetic flow liquid Download PDFInfo
- Publication number
- CN204345041U CN204345041U CN201420774737.4U CN201420774737U CN204345041U CN 204345041 U CN204345041 U CN 204345041U CN 201420774737 U CN201420774737 U CN 201420774737U CN 204345041 U CN204345041 U CN 204345041U
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- valve body
- main valve
- spool
- resistent ring
- magnetism resistent
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Abstract
The utility model relates to a kind of pressure controlled valve based on magnetic flow liquid, comprise valve seat, main valve body, coil block, magnetism resistent ring, piston, spring seat, Returnning spring, end cap that spool, the blanking cover being provided with filler opening, lower end are provided with oil outlet, the upper axle head of main valve body is fixed with magnetism resistent ring, coil block is sleeved on magnetism resistent ring outside, magnetism resistent ring upper end and spring seat are tightly connected, the active chamber formed by the internal surface of the upper axle head of main valve body, magnetism resistent ring, valve core outer surface and spring seat lower shaft end, active chamber inside is full of magnetic flow liquid; Blanking cover is coaxially fixedly connected with the bottom of main valve body, and the bottom of spool is placed in the axis hole of main valve body, and lower shaft end envelope leans against on filler opening; Piston is fixed on spool and is in middle part in active chamber, and Returnning spring compression is fixed between piston and spring seat.The utility model structure is more simplified, easily manufactured, energy efficiency is high, and magnetic field structure layout is more reasonable, and the utilization ratio of current energy is high.
Description
Technical field
The utility model belongs to the pressure controlled valve in hydraulic system, particularly a kind of pressure controlled valve based on magnetic flow liquid.
Background technique
At present, common magnetorheological pressure control valve, by the magnetic intensity of control action magnetic flow liquid in active chamber, controls magnetic flow liquid yield strength, thus controls magnetic flow liquid to the active force of spool, realizes the Stress control to fluid.Magnetorheological pressure control valve such as described in CN2012102934420, its embodiment is too complicated, when identical beneficial aspects, its sensor and some sealing original paper are redundancies, the foundation of its effective magnetic field needs by the structure beyond magnetorheological pressure control valve itself in addition, is unfavorable for playing the maximum beneficial effect of magnetorheological pressure control valve.
Summary of the invention
The purpose of this utility model is to provide the pressure controlled valve based on magnetic flow liquid that a kind of structure is simple, easily manufactured, energy efficiency is high and pressure response is fast.
The utility model is achieved through the following technical solutions: a kind of pressure controlled valve based on magnetic flow liquid, comprise valve seat, spool, be provided with the blanking cover of filler opening, lower end is provided with the main valve body of oil outlet, coil block, magnetism resistent ring, piston, spring seat, Returnning spring, end cap, described magnetism resistent ring is fixed on the upper axle head of main valve body, coil block is sleeved on magnetism resistent ring outside, magnetism resistent ring upper end and spring seat are tightly connected, by the upper axle head of main valve body, the internal surface of magnetism resistent ring, the active chamber that valve core outer surface and spring seat lower shaft end are formed, active chamber inside is full of magnetic flow liquid, described blanking cover is coaxially fixedly connected with the bottom of main valve body, and the bottom of spool is placed in the axis hole of main valve body, and lower shaft end envelope leans against on filler opening, described piston is fixed on spool and is in middle part in active chamber, and Returnning spring compression is fixed between piston and spring seat, end cap is threaded with valve seat.End cap is provided with wire harness pipe.
Working principle of the present utility model: when spool is subject to the effect of the high pressure oil that filler opening place stream comes, start to move up, magnetic flow liquid on the upside of active chamber inner carrier starts radially outwardly, the magnetic line of force that this and coil block are formed moves towards vertical, magnetic flow liquid starts solidification, hinder magnetic flow liquid to continue flowing, namely form the power hindered to movement on spool; By control coil assembly produce the intensity in magnetic field, the moving resistance of spool is controlled, and then the aperture of filler opening can be controlled.
Compared with prior art, the beneficial effects of the utility model are:
The utility model structure is more simplified, easily manufactured, energy efficiency is high, utilizes magnetic flow liquid to extrude mode of operation and realizes the automatically controlled adjustable object of hydrodynamic pressure; Magnetic field structure layout is more reasonable, and the utilization ratio of its current energy is higher.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the flow schematic diagram of the utility model fluid to be controlled.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1: a kind of pressure controlled valve based on magnetic flow liquid, comprise valve seat 4, spool 5, be provided with the blanking cover 7 of filler opening a, lower end is provided with the main valve body 8 of oil outlet b, coil block 10, magnetism resistent ring 11, piston 12, spring seat 14, Returnning spring 15, end cap 16, described magnetism resistent ring 11 is fixed on the upper axle head of main valve body 8, it is outside that coil block 10 is sleeved on magnetism resistent ring 11, magnetism resistent ring 11 upper end and spring seat 14 are tightly connected, by the upper axle head of main valve body 8, the internal surface of magnetism resistent ring 11, the active chamber 9 that spool 5 outer surface and spring seat 14 lower shaft end are formed, active chamber 9 inside is full of magnetic flow liquid, described blanking cover 7 is coaxially fixedly connected with the bottom of main valve body 8, and the bottom of spool 5 is placed in the axis hole of main valve body 8, and lower shaft end envelope leans against on filler opening a, described piston 12 is fixed on spool 5 and is in middle part in active chamber 9, and Returnning spring 15 compression is fixed between piston 12 and spring seat 14, end cap 16 is threaded with valve seat 4.Described end cap 16 is provided with wire harness pipe 13.
Rubber seal 1 is provided with between spool 5 and spring seat 14; Rubber seal 2 is provided with between magnetism resistent ring 11 and spring seat 14; Rubber seal 3 is provided with between spool 5 and main valve body 8; Rubber seal 6 is provided with between the hydraulic tube of blanking cover 7 and band pilot pressure.
Working procedure of the present utility model is as follows: carry out the magnetic intensity of control action magnetic flow liquid in active chamber 9 by electric current [strength in control coil assembly 10, thus the control realized oil liquid pressure, and then the moving resistance controlling spool 5 carries out the aperture with filler opening a.Magnetic flow liquid in spring seat 14 described in Fig. 1, end cap 16, valve seat 4, main valve body 8, piston 12 and active chamber 9, creates closed magnetic line of force c jointly when the work of energising.As shown in Figure 2, when spool 5 is subject to the effect of the high oil pressure of the filler opening a be positioned on blanking cover 7, start to move up, magnetic flow liquid on the upside of piston 12 starts radially outwardly, this and the magnetic line of force that coil block 10 is formed move towards vertical, magnetic flow liquid starts solidification, magnetic flow liquid is hindered to continue flowing, form magnetic flow liquid to the active force of piston 12, promote filler opening a when the active force of spool 5 is greater than active force sum to piston 12 of Returnning spring 15 thrust and magnetic flow liquid in active chamber 9 and be communicated with oil outlet b.Oil pressure drops to it and promotes active force of spool when equaling active force sum to piston 12 of magnetic flow liquid in Returnning spring thrust and active chamber 9, spool 5 stress balance.Oil pressure becomes normal pressure, spool 5 starts to move down, magnetic rheological liquid in active chamber 9 also becomes common Newtonian fluid again, the resistance that magnetic rheological liquid moves to spool 5 is very little negligible, the effect of the Returnning spring 15 pairs of pistons 12 makes spool 5 move down again to contact with blanking cover 7, filler opening a and oil outlet b disconnects, and the pressure controlled valve based on magnetic flow liquid restPoses.
Claims (2)
1. the pressure controlled valve based on magnetic flow liquid, comprise valve seat (4), main valve body (8), coil block (10), magnetism resistent ring (11), piston (12), spring seat (14), Returnning spring (15), end cap (16) that spool (5), the blanking cover (7) being provided with filler opening (a), lower end are provided with oil outlet (b)
It is characterized in that: described magnetism resistent ring (11) is fixed on the upper axle head of main valve body (8), it is outside that coil block (10) is sleeved on magnetism resistent ring (11), magnetism resistent ring (11) upper end and spring seat (14) are tightly connected, the active chamber (9) formed by the internal surface of the upper axle head of main valve body (8), magnetism resistent ring (11), spool (5) outer surface and spring seat (14) lower shaft end, active chamber (9) inside is full of magnetic flow liquid; Described blanking cover (7) is coaxially fixedly connected with the bottom of main valve body (8), and the bottom of spool (5) is placed in the axis hole of main valve body (8), and lower shaft end envelope leans against on filler opening (a); Described piston (12) is fixed on spool (5) and is in middle part in active chamber (9), and Returnning spring (15) compression is fixed between piston (12) and spring seat (14); End cap (16) is threaded with valve seat (4).
2. the pressure controlled valve based on magnetic flow liquid according to claim 1, is characterized in that: described end cap (16) is provided with wire harness pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774737.4U CN204345041U (en) | 2014-12-08 | 2014-12-08 | Based on the pressure controlled valve of magnetic flow liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420774737.4U CN204345041U (en) | 2014-12-08 | 2014-12-08 | Based on the pressure controlled valve of magnetic flow liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204345041U true CN204345041U (en) | 2015-05-20 |
Family
ID=53228310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420774737.4U Active CN204345041U (en) | 2014-12-08 | 2014-12-08 | Based on the pressure controlled valve of magnetic flow liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204345041U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439175A (en) * | 2016-08-11 | 2017-02-22 | 张广 | Air pressure stepless adjustment device based on magnetorheological effect |
| CN111350712A (en) * | 2020-03-20 | 2020-06-30 | 中国矿业大学 | Magnetorheological valve with adjustable radial damping clearance |
-
2014
- 2014-12-08 CN CN201420774737.4U patent/CN204345041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439175A (en) * | 2016-08-11 | 2017-02-22 | 张广 | Air pressure stepless adjustment device based on magnetorheological effect |
| CN111350712A (en) * | 2020-03-20 | 2020-06-30 | 中国矿业大学 | Magnetorheological valve with adjustable radial damping clearance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |