CN203009436U - Central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances - Google Patents
Central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances Download PDFInfo
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- CN203009436U CN203009436U CN 201320018569 CN201320018569U CN203009436U CN 203009436 U CN203009436 U CN 203009436U CN 201320018569 CN201320018569 CN 201320018569 CN 201320018569 U CN201320018569 U CN 201320018569U CN 203009436 U CN203009436 U CN 203009436U
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Abstract
The utility model discloses a central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances. The magneto-rheological valve comprises an end cover, a valve core, an iron core, a valve body, an overflow plate, a flow guiding block, coils and a seal ring. When currents in certain directions and of certain sizes are input into a coil I, a coil II and a coil III, a damping clearance of electromagnetic effect between the valve core and the iron core can produce a magnetic field, so that a magneto-rheological liquid passes through the damping clearance and produces differential pressure under the action of the magnetic field. Differential pressure control of four effective damping clearances can be achieved by adjusting current sizes of the three coils, so that multi-stage voltage regulation is formed. The central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances can effectively prevent the magneto-rheological liquid from permeating into the coils, so that an magneto-rheological effect is improved; and the four variable damping clearances formed by the three coils can intelligently control differential pressure changes when the magneto-rheological liquid passes through damping clearance channels, and adjusting ranges of valve inlet and outlet pressure are widened. The magneto-rheological valve is applicable to a multistage pressure-adjustable, low-pressure and small-flow hydraulic control system.
Description
Technical field
The utility model relates to a kind of magnetic rheological valve, relates in particular to a kind of multi-stage pressure regulating damping clearance middle magnetic rheological valve.
Background technique
In hydraulic control system, hydraulic control valve is mainly used to control pressure, flow and the flow direction of liquid stream in hydraulic actuator, thereby control hydraulic actuator startup, stop, change speed, direction, power and the sequence of movement etc. of motion, to satisfy all kinds of hydraulic equipments to the requirement of motion, speed, power and torque even load operating mode.Therefore the performance of hydraulic control valve directly has influence on static characteristic, dynamic characteristic and the functional reliability of hydraulic system, is one of key control unit in hydraulic control system.Development along with new and high technology, hydraulicdriven engineering is used more and more higher to the requirement of hydraulic element, traditional hydraulic control valve is due to the mechanical part of existence activity, not only complex structure, volume is large, processing request is high, easy wearing and tearing, cost are high, but also have wayward, low-response, the problem such as operational noise is large, functional reliability is low.
Magnetic rheological valve is a kind of novel intelligent hydraulic control component that the magnetic rheology effect with magnetic flow liquid designs for control principle.Regulate the flow direction of pilot pressure, flow and the liquid stream of magnetic rheological valve by the size that changes externally-applied magnetic field intensity, realize the intelligent control of magnetic rheological valve.Magnetic rheological valve is not owing to there is no movably mechanical part, and the flow of the magnetic flow liquid that it passes through can be controlled by impressed current, so speed of response is high, and noise is low, and energy consumption is little, and working stability is reliable, has a good application prospect.But unicoil or twin coil type magnetic rheological valve inlet and outlet pressure commonly used is poor less at present, and the pressure condition scope is narrow, thereby has limited the commercial Application development of magnetic rheological valve.In addition, magnetic rheological valve general direct on spool winding around, form the external damping clearance by spool convex shoulder and valve body, be easy to cause magnetic flow liquid to penetrate in the spool coil, thereby affect magnetic rheology effect, and the relaxation length of this class magnetic rheological valve is also shorter.
Summary of the invention
In order to overcome the problem that exists in background technique, the utility model proposes a kind of multi-stage pressure regulating damping clearance middle magnetic rheological valve.With respect to unicoil or twin coil magnetic rheological valve, this magnetic rheological valve has four effective damping gaps, can consist of the level Four pressure regulation, thereby can increase the adjustable extent of damping clearance place pressure difference; In addition, the damping clearance of this magnetic rheological valve has effectively been isolated magnetic flow liquid and coil between iron core and spool, can avoid magnetic flow liquid to penetrate in coil, thereby the raising magnetic rheology effect increases damping clearance length, realizes the continuous intelligence of magnetic rheological valve pressure difference is regulated.
The technological scheme that its technical problem that solves the utility model adopts comprises: left end cap (1), left seal ring (2), left overcurrent plate (3), left baffle (4), coil I (5), spool (6), coil II (7), iron core (8), coil III (9), valve body (10), right baffle (11), right overcurrent plate (12), right seal ring (13) and right end cap (14); Left end cap (1) is fixedly connected with by screw thread with valve body (10); Seal by left seal ring (2) between left end cap (1) and valve body (10); Left overcurrent plate (3) and left end cap (1) transition fit, its left end is compressed by left end cap (1); Left baffle (4) and spool (6) left end projecting shaft Spielpassung, left baffle (4) left end and left overcurrent plate (3) are close to, and left baffle (4) right-hand member and spool (6) are close to; Hole transition fit on spool (6) left end projecting shaft and left overcurrent plate (3) compresses left baffle (4); Iron core (8) and valve body (10) transition fit, the left end of iron core (8) and left end cap (1) are close to, and the right-hand member of iron core (8) and right end cap (14) are close to; Spool (6) is contained in iron core (8), and spool (6) is supported and axial restraint by left overcurrent plate (3) and right overcurrent plate (12) respectively by the two ends projecting shaft; Right baffle (11) and spool (6) right-hand member projecting shaft Spielpassung, left end is close to spool (6), and right-hand member is close to right overcurrent plate (12); Right overcurrent plate (12) and right end cap (14) transition fit, right overcurrent plate (12) right-hand member is compressed by right end cap (14); Hole transition fit on spool (6) right-hand member projecting shaft and right overcurrent plate (12) compresses right baffle (11); Right end cap (14) is fixedly connected with by screw thread with valve body (10); Seal by right seal ring (13) between right end cap (14) and valve body (10).Coil I (5) is wound in the winding slot I of iron core (8), and its lead-in wire is drawn by the upper fairlead corresponding with coil I (5) of valve body (10); Coil II (7) is wound in the winding slot II of iron core (8), and its lead-in wire is drawn by the upper fairlead corresponding with coil II (7) of valve body (10); Coil III (9) is wound in the winding slot III of iron core (8), and its lead-in wire is drawn by the upper fairlead corresponding with coil III (9) of valve body (10).Gap between spool (6) and iron core (8) consists of the passage of flowing through of magnetic flow liquid, and this channel width is 0.55mm, and length is 72mm; Can form four effective damping gaps by apply respectively electric current on coil I (5), coil II (7) and coil III (9).
The utility model is compared with background technique, and the beneficial effect that has is:
(1) compare with twin coil type magnetic rheological valve with unicoil, be wound with three groups of coils on the utility model multi-stage pressure regulating damping clearance middle magnetic rheological valve iron core, consist of four effective magnetorheological damping gaps, can realize the level Four pressure regulation, make magnetic rheological valve inlet and outlet pressure regulation range wider, control more flexible.
(2) compare with damping clearance external magnetic rheological valve commonly used, the damping clearance of the utility model multi-stage pressure regulating damping clearance middle magnetic rheological valve is between iron core and spool, be middle, can avoid magnetic flow liquid to penetrate in coil, thereby effectively improve magnetic rheology effect.In addition, the Magnetic flux density in this magnetic rheological valve damping clearance does not have concentrations, can effectively increase damping clearance length, improves the magnetic rheological valve inlet outlet pressure differential.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model core structure schematic diagram.
Fig. 3 is the utility model damping clearance structural representation.
Fig. 4 is the utility model working principle schematic diagram.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, the utility model comprises: left end cap 1, left seal ring 2, left overcurrent plate 3, left baffle 4, coil I 5, spool 6, coil II 7, iron core 8, coil III 9, valve body 10, right baffle 11, right overcurrent plate 12, right seal ring 13 and right end cap 14.Left end cap 1 is fixedly connected with by screw thread with valve body 10.Seal by left seal ring 2 between left end cap 1 and valve body 10.Left overcurrent plate 3 and left end cap 1 transition fit, its left end is compressed by left end cap 1.Left baffle 4 and spool 6 left end projecting shaft Spielpassung, left baffle 4 left ends and left overcurrent plate 3 are close to, and left baffle 4 right-hand members and spool 6 are close to.Hole transition fit on spool 6 left end projecting shafts and left overcurrent plate 3 compresses left baffle 4.Iron core 8 and valve body 10 transition fit, the left end of iron core 8 and left end cap 1 are close to, and the right-hand member of iron core 8 and right end cap 14 are close to.Spool 6 is contained in iron core 8, and spool 6 is supported and axial restraint by left overcurrent plate 3 and right overcurrent plate 12 respectively by the two ends projecting shaft.Right baffle 11 and spool 6 right-hand member projecting shaft Spielpassung, left end is close to spool 6, and right-hand member is close to right overcurrent plate 12.Right overcurrent plate 12 and right end cap 14 transition fit, right overcurrent plate 12 right-hand members are compressed by right end cap 14.Hole transition fit on spool 6 right-hand member projecting shafts and right overcurrent plate 12 compresses right baffle 11.Right end cap 14 is fixedly connected with by screw thread with valve body 10; Seal by right seal ring 13 between right end cap 14 and valve body 10.Coil I 5 is wound in the winding slot I of iron core 8, and its lead-in wire is drawn by fairlead corresponding with coil I 5 on valve body 10.Coil II 7 is wound in the winding slot II of iron core 8, and its lead-in wire is drawn by fairlead corresponding with coil II 7 on valve body 10.Coil III 9 is wound in the winding slot III of iron core 8, and its lead-in wire is drawn by fairlead corresponding with coil III 9 on valve body 10.Gap between spool 6 and iron core 8 consists of the passage of flowing through of magnetic flow liquid, and this channel width is 0.55mm, and length is 72mm; Can form four effective damping gaps by apply respectively electric current on coil I 5, coil II 7 and coil III 9.
Figure 2 shows that the utility model core structure schematic diagram.Wherein, I, II, III are the winding slot that processes on iron core 8.Coil I 5, coil II 7 and coil III 9 are wound in respectively in winding slot I, winding slot II and winding slot III, and draw outside valve body from corresponding fairlead.
Figure 3 shows that the utility model damping clearance structural representation.Gap between spool 6 and iron core 8 consists of the passage of flowing through of magnetic flow liquid, by coil I 5, coil II 7 and coil III 9 are applied respectively electric current, can form 1., 2., 3. and 4. four effective damping gaps shown in Figure 3, thereby form four controllable pressure zones, consist of the level Four pressure regulation.
The utility model working principle is as follows:
As shown in Figure 4, when inputting respectively the electric current of certain orientation and size in lead-in wire A, the B of coil I, coil II and coil III, C, due to electromagnetic effect can be between valve body 10, iron core 8, spool 6, damping clearance 1., 2., 3. and form the magnetic field of three sealings 4..The effective damping gap of this magnetic rheological valve is divided into four sections, and the mobile perpendicular direction of direction and the magnetic flow liquid of effective magnetic field in damping clearance.Adding under magnetic fields, it is solid-state that interior magnetic flow liquid of Millisecond time can be transformed into class by the good liquid state of flowing state, its viscosity will increase at the utmost point several orders of magnitude in the short time, present viscoplastic fluid, and show certain anti-shearing yield stress, and the increase with externally-applied magnetic field intensity increases, the state until magnetic flow liquid reaches capacity.Magnetic flow liquid flows through this four damping clearances, just must overcome the intermolecular power of this catenation, and cause the flow through resistance of valve of magnetic flow liquid to increase, thereby can slow down or stop flowing of liquid, thus the generation pressure difference.After removing magnetic field, magnetic flow liquid is transformed from the solidified state into again liquid state, and this transformation is continuous, reversible, controlled.
Multi-stage pressure regulating damping clearance middle magnetic rheological valve according to the magnetorheological characteristics design of magnetic flow liquid is simple in structure, convenient processing and manufacture.Can be by regulating size of current and direction in three coils, realize the intelligent control of the pressure reduction in four effective damping gaps is formed the level Four pressure regulation, and then can be to the poor automatically-controlled continuous of carrying out of the inlet and outlet pressure of magnetic rheological valve.
Claims (3)
1. a multi-stage pressure regulating damping clearance middle magnetic rheological valve, is characterized in that comprising: left end cap (1), left seal ring (2), left overcurrent plate (3), left baffle (4), coil I (5), spool (6), coil II (7), iron core (8), coil III (9), valve body (10), right baffle (11), right overcurrent plate (12), right seal ring (13) and right end cap (14); Left end cap (1) is fixedly connected with by screw thread with valve body (10); Seal by left seal ring (2) between left end cap (1) and valve body (10); Left overcurrent plate (3) and left end cap (1) transition fit, its left end is compressed by left end cap (1); Left baffle (4) and spool (6) left end projecting shaft Spielpassung, left baffle (4) left end and left overcurrent plate (3) are close to, and left baffle (4) right-hand member and spool (6) are close to; Hole transition fit on spool (6) left end projecting shaft and left overcurrent plate (3) compresses left baffle (4); Iron core (8) and valve body (10) transition fit, the left end of iron core (8) and left end cap (1) are close to, and the right-hand member of iron core (8) and right end cap (14) are close to; Spool (6) is contained in iron core (8), and spool (6) is supported and axial restraint by left overcurrent plate (3) and right overcurrent plate (12) respectively by the two ends projecting shaft; Right baffle (11) and spool (6) right-hand member projecting shaft Spielpassung, left end is close to spool (6), and right-hand member is close to right overcurrent plate (12); Right overcurrent plate (12) and right end cap (14) transition fit, right overcurrent plate (12) right-hand member is compressed by right end cap (14); Hole transition fit on spool (6) right-hand member projecting shaft and right overcurrent plate (12) compresses right baffle (11); Right end cap (14) is fixedly connected with by screw thread with valve body (10); Seal by right seal ring (13) between right end cap (14) and valve body (10).
2. multi-stage pressure regulating damping clearance middle magnetic rheological valve according to claim 1, it is characterized in that: coil I (5) is wound in the winding slot I of iron core (8), and its lead-in wire is drawn by the upper fairlead corresponding with coil I (5) of valve body (10); Coil II (7) is wound in the winding slot II of iron core (8), and its lead-in wire is drawn by the upper fairlead corresponding with coil II (7) of valve body (10); Coil III (9) is wound in the winding slot III of iron core (8), and its lead-in wire is drawn by the upper fairlead corresponding with coil III (9) of valve body (10).
3. multi-stage pressure regulating damping clearance middle magnetic rheological valve according to claim 1 is characterized in that: the gap between spool (6) and iron core (8) consists of the passage of flowing through of magnetic flow liquid, and this channel width is 0.55mm, and length is 72mm; Can form four effective damping gaps by apply respectively electric current on coil I (5), coil II (7) and coil III (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320018569 CN203009436U (en) | 2013-01-14 | 2013-01-14 | Central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320018569 CN203009436U (en) | 2013-01-14 | 2013-01-14 | Central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances |
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| CN203009436U true CN203009436U (en) | 2013-06-19 |
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| CN 201320018569 Expired - Fee Related CN203009436U (en) | 2013-01-14 | 2013-01-14 | Central-positioned type magneto-rheological valve adopting multi-stage voltage-regulating damping clearances |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650191A (en) * | 2016-02-29 | 2016-06-08 | 广东工业大学 | U-shaped groove open type magnetorheological damper |
| CN112178205A (en) * | 2020-10-28 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device and motor with same |
| CN112923124A (en) * | 2021-02-05 | 2021-06-08 | 广西科技大学 | Embedded axial channel magnetorheological valve |
| CN112923125A (en) * | 2021-02-05 | 2021-06-08 | 广西科技大学 | Mixed ring enhanced magnetorheological valve device |
-
2013
- 2013-01-14 CN CN 201320018569 patent/CN203009436U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650191A (en) * | 2016-02-29 | 2016-06-08 | 广东工业大学 | U-shaped groove open type magnetorheological damper |
| CN112178205A (en) * | 2020-10-28 | 2021-01-05 | 清华大学 | Magnetic liquid sealing device and motor with same |
| CN112923124A (en) * | 2021-02-05 | 2021-06-08 | 广西科技大学 | Embedded axial channel magnetorheological valve |
| CN112923125A (en) * | 2021-02-05 | 2021-06-08 | 广西科技大学 | Mixed ring enhanced magnetorheological valve device |
| CN112923124B (en) * | 2021-02-05 | 2023-04-11 | 广西科技大学 | Embedded axial channel magnetorheological valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140114 |