CN204610973U - A kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll - Google Patents
A kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll Download PDFInfo
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- CN204610973U CN204610973U CN201520235011.8U CN201520235011U CN204610973U CN 204610973 U CN204610973 U CN 204610973U CN 201520235011 U CN201520235011 U CN 201520235011U CN 204610973 U CN204610973 U CN 204610973U
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Abstract
The utility model discloses a kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll, primarily of compositions such as end cap, valve body, positioning disk, damping disc, permanent magnet, drum and field coils.The field generator for magnetic of this magnetic rheological valve is made up of jointly permanent magnet and twin coil.In dead electricity situation, produce fixed magnetic field by permanent magnet, make the magnetic rheological valve under zero current still have certain inlet outlet pressure differential; Under obtaining electric situation, by regulating twin coil size of current and direction, the magnetic field that field coil can be made to produce is identical with the magnetic direction that permanent magnet produces or contrary, plays and strengthens magnetic field or the incorgruous effect slackening magnetic field in the same way, thus magnetic rheological valve inlet outlet pressure differential is increased or reduces.This magnetic rheological valve is particularly suitable as bypass valve and is applied in MR damper, and by the complex controll of permanent magnet and twin coil, MR damper damping force regulation range can be made wide, and faulty behavior is superior, damping, buffering stable working.
Description
Technical field
The utility model relates to a kind of magnetic rheological valve, particularly relates to a kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll.
Background technique
Magnetic rheological valve is a kind of novel hydraulic control valve being working medium with intellectual material magnetic flow liquid.Magnetic flow liquid, under magnetic fields, can change the visco-plastic body with certain shear yield strength into from free-pouring Newtonian fluid, again revert to free-pouring liquid condition after removing magnetic field simultaneously.Based on this rheological properties, the inlet and outlet pressure of magnetic rheological valve can be controlled in real time by impressed current, has that speed of response is high, energy consumption is low and the reliable feature of working stability, and has a good application prospect.
Along with the innovation of magnetic rheological valve structural design and the continuous maturation of application technology, magnetic rheological valve is controlled MR damper as bypass valve and gets the attention.Bypass valve type MR damper mainly carrys out the size of dynamic adjustments damper damping force by controlling bypass valve two ends pressure reduction.This bypass valve type MR damper obtains Preliminary Applications at present in the vibration damping of vehicle suspension system, offshore platform structure and the vibration isolation of tall building etc., shows good application prospect.
The quality of magnetic rheological valve pressure regulating performance depends primarily on the project organization of magnetic flow liquid work damping clearance thickness and valve.At present conventional magnetic rheological valve structure mainly contains: built-in magnetic rheological valve between spool and coil of the external magnetic rheological valve of work damping clearance design between valve body and coil, the design of work damping clearance and work damping clearance are designed to the magnetic rheological valve of circular ring type, disc type and annulus and disk hybrid type.But the damping clearance thickness of this few class magnetic rheological valve is all fixed non-adjustable, thus valve inlet outlet pressure differential can only regulate by controlling size of current in field coil within the specific limits, pressure regulation spectrum is narrower, regulative mode is single, can only be applied to comparatively in close limit damping force regulating system, thus hinder the commercial Application development of magnetic rheological valve.Although also have the magnetic rheological valve being changed damping clearance size by mechanical adjustment, this magnetic rheological valve complicated structure.Simultaneously; some research scholars it is also proposed unicoil and two-wire ring radial flow magnetic rheological valve; also magnetic rheological valve work damping clearance size constrained can effectively be improved to a certain extent; pressure reduction regulation range is also wider; but this valve is applied in damped system; as electric power break down after easily lost efficacy immediately, do not have the effect of buffer protection system under certain hour and operating mode.Therefore, its application in the bypass valve type MR damper system of structural constraint of existing magnetic rheological valve.Current MR damper system is applied safer, and makes damping force regulation range wider, the magnetic rheological valve being just necessary to design a kind of new structure as bypass valve to control MR damper.
Summary of the invention
In order to overcome Problems existing in background technique, the utility model proposes a kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll.The field generator for magnetic of this magnetic rheological valve is made up of jointly permanent magnet and twin coil.In dead electricity situation, produce fixed magnetic field by permanent magnet, the magnetic intensity that damping clearance place can be made to keep certain, under making zero current, magnetic rheological valve still has certain inlet outlet pressure differential; Under obtaining electric situation, by regulating size of current and direction, the magnetic field that field coil can be made to produce is identical or contrary with the fixed magnetic field direction that permanent magnet produces, and plays and strengthens magnetic field or the incorgruous effect slackening magnetic field in the same way, thus make magnetic rheological valve inlet outlet pressure differential increase further or reduce.Therefore, this magnetic rheological valve is applied in MR damper as bypass valve, and by the complex controll of permanent magnet and twin coil, the damping force dynamic adjustments scope of damper can be made wider, and under power-down conditions, faulty behavior is superior, damping, buffering stable working.
The utility model solves the technological scheme that its technical problem adopts and comprises: screw I (1), left end cap (2), seal ring I (3), left drum (4), field coil I (5), permanent magnet (6), field coil II (7), right drum (8), right end cap (9), screw II (10), seal ring II (11), right positioning disk (12), damping disc (13), seal ring III (14), left positioning disk (15) and valve body (16), left end cap (2) and valve body (16) transition fit, left end cap (2) is fixedly connected with by screw I (1) with valve body (16), permanent magnet (6) and valve body (16) transition fit, permanent magnet (6) is positioned at the groove that left drum (4) and right drum (8) are formed, permanent magnet (6) left side is by left drum (4) right-hand member positioning compression, and permanent magnet (6) right side is by right drum (8) left end positioning compression, left drum (4) left side and left end cap (2) right side transition fit, adopt seal ring I (3) to seal between left drum (4) and left end cap (2), right drum (8) right side and right end cap (9) left side transition fit, adopt seal ring II (11) to seal between right drum (8) and right end cap (9), left drum (4) right side and right drum (8) left side transition fit, adopt seal ring III (14) to seal between left drum (4) and right drum (8), field coil I (5) is wound in the winding slot of left drum (4), and its lead-in wire is derived by the fairlead A on left end cap (2), field coil II (7) is wound in the winding slot of right drum (8), and its lead-in wire is derived by the fairlead B on right end cap (9), right end cap (9) and valve body (16) transition fit, right end cap (9) is fixedly connected with by screw II (10) with valve body (16), left positioning disk (15) radial direction and left drum (4) transition fit, left positioning disk (15) axial left end is compressed by left end cap (2), and left positioning disk (15) axial right-hand member is by left drum (4) shoulder positioning compression, right positioning disk (12) radial direction and right drum (8) transition fit, right positioning disk (12) axial right-hand member is compressed by right end cap (9), and right positioning disk (12) axial left end is by right drum (8) shoulder positioning compression, damping disc (13) radial direction and left drum (4) and right drum (8) transition fit, damping disc (13) axial left end is by left drum (4) shoulder positioning compression, and damping disc (13) axial right-hand member is by right drum (8) shoulder positioning compression, damping disc (13) is processed with the identical waist through hole of 4 uniform structures, forms magnetic flow liquid liquid chunnel.
Field coil I (5) and field coil II (7) form twin coil; When field coil I (5) and field coil II (7) obstructed electric current, the fixed magnetic field that permanent magnet (6) produces vertically acts on the liquid chunnel of magnetic flow liquid, and valve is imported and exported a stable pressure reduction; When the field coil I (5) in twin coil and field coil II (7) pass into electric current, by regulating size of current and direction, the variable magnetic field that the fixed magnetic field direction that can produce at the generation of damping clearance place and permanent magnet (6) is identical or contrary, realize the enhancing in the same way of damping clearance internal magnetic field intensity or incorgruous weakening, the final size effectively controlling damping clearance internal magnetic field intensity, to reach the adjustment object of wider valve inlet outlet pressure differential.
The region that damping disc (13), left positioning disk (15) and left drum (4) surround forms damping clearance I, and the width of damping clearance I is determined by left drum (4) internal surface convex shoulder width; The region that damping disc (13), right positioning disk (12) and right drum (8) surround forms damping clearance II, and the width of damping clearance II is determined by right drum (8) internal surface convex shoulder width.
The utility model is compared with background technique, and the beneficial effect had is:
(1) field generator for magnetic of the utility model magnetic rheological valve is made up of jointly permanent magnet and twin coil.In dead electricity situation, produce fixed magnetic field by permanent magnet, the magnetic intensity that damping clearance place can be made to keep certain, under making zero current, valve still has certain inlet outlet pressure differential; Under obtaining electric situation, by regulating size of current and direction, the magnetic field that produces in twin coil can be made identical with the magnetic direction that permanent magnet produces or contrary, play and strengthen magnetic field or the incorgruous effect slackening magnetic field in the same way, thus make magnetic rheological valve inlet outlet pressure differential increase further or reduce.
(2) compared to circular ring type magnetic rheological valve and radial flow disc type magnetic rheological valve, the utility model magnetic rheological valve compact structure, range of regulation is wide, and voltage regulating mode is flexible, avoids the mutual interference of close field coil induced magnetic fields simultaneously.
(3) the utility model magnetic rheological valve can be used as bypass valve and is applied in MR damper, forms bypass valve type MR damper.By the complex controll of permanent magnet and twin coil, bypass valve type MR damper damping force dynamic range adjustment can be made wider, and under power-down conditions, faulty behavior is superior, damping, buffering stable working.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model damping disc structural representation.
Fig. 3 is the left bobbin bracket structure schematic diagram of the utility model.
Fig. 4 is the utility model magnetic flow liquid liquid chunnel and effective damping gap schematic diagram.
Fig. 5 is that in the utility model zero current situation, magnetic force of permanent magnet line moves towards schematic diagram.
Fig. 6 be the utility model permanent magnet and twin coil magnetic intensity in the same way time the magnetic line of force move towards schematic diagram.
Fig. 7 be the utility model permanent magnet and twin coil magnetic intensity incorgruous time the magnetic line of force move towards schematic diagram.
Fig. 8 is that the utility model is as the application schematic diagram of bypass valve in MR damper.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, the utility model comprises: screw I 1, left end cap 2, seal ring I 3, left drum 4, field coil I 5, permanent magnet 6, field coil II 7, right drum 8, right end cap 9, screw II 10, seal ring II 11, right positioning disk 12, damping disc 13, seal ring III 14, left positioning disk 15 and valve body 16.
Figure 2 shows that the utility model damping disc structural representation, this damping disc 13 is processed with 4 identical waist through hole be evenly arranged of structure, magnetic flow liquid liquid chunnel can be formed.
Figure 3 shows that the left bobbin bracket structure schematic diagram of the utility model, left drum 4 is identical with right drum 8 structural design.Top, left drum 4 outer surface left side is processed with moves back wire casing, and going between derives from the fairlead A left end cap 2 by moving back wire casing; Left drum 4 right-hand member is processed with assembling annulus, this assembling annulus together with the assembling annulus on right drum 8 for locating permanent magnet 6; Left drum 4 right side is processed with groove, can be used to place seal ring III 14; Left drum 4 through-hole inner surface is processed with one section of shoulder, for the axially locating of left positioning disk 15 and damping disc 13.
Figure 4 shows that the utility model magnetic flow liquid liquid chunnel and effective damping gap schematic diagram.The region that in figure, damping disc 13, left positioning disk 15 and left drum 4 surround forms damping clearance I, and its width is determined by left drum 4 internal surface convex shoulder width; The region that damping disc 13, right positioning disk 12 and right drum 8 surround forms damping clearance II, and its width is determined by right drum 8 internal surface convex shoulder width.
Under Figure 5 shows that the utility model zero current situation, magnetic force of permanent magnet line moves towards schematic diagram.The fixed magnetic field that permanent magnet produces, perpendicular through damping clearance I and damping clearance II, can make valve import and export and produce certain pressure reduction.
When Figure 6 shows that permanent magnet and twin coil magnetic intensity are in the same way, the magnetic line of force moves towards schematic diagram.Current direction in the field coil that synchronization control A, B fairlead are drawn, can make its magnetic line of force move towards identical with the magnetic direction that permanent magnet produces, thus the magnetic intensity at two sections of damping clearance places is increased further, reach the object increasing valve inlet outlet pressure differential.
Figure 7 shows that permanent magnet and twin coil magnetic intensity incorgruous time the magnetic line of force move towards schematic diagram.Synchronization control A, B fairlead draw field coil I 5 and field coil II 7 in current direction, its magnetic line of force can be made to move towards contrary with the magnetic direction that permanent magnet produces, thus the magnetic intensity at two sections of damping clearance places is weakened, reach the object reducing valve inlet outlet pressure differential.
Figure 8 shows that the utility model is as the application schematic diagram of bypass valve in MR damper.In figure, 17 is the utility model magnetic rheological valve, and 18 is MR damper.
Utility model works principle is as follows:
As shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, when passing into the electric current of a certain size and direction respectively to the field coil I 5 in twin coil and field coil II 7, valve body 16, left drum 4, right drum 8, left positioning disk 15, damping disc 13, right positioning disk 12 and damping clearance I and damping clearance II form closed magnetic field loop.By electromagnetic induction principle, damping clearance I and generation magnetic field, damping clearance II place, the direction in magnetic field is vertical with the flow direction of magnetic flow liquid, flowing through magnetic flow liquid in damping clearance I and damping clearance II due to magnetic fields becomes rapidly semi-solid, form the catemer along magnetic direction arrangement, the viscosity of magnetic flow liquid can increase sharply and increase with the increase of additional magnetic induction intensity, and yield stress strengthens.Magnetic flow liquid flows through this two sections of damping clearances, just must overcome the intermolecular power of this catenation, thus the resistance causing magnetic flow liquid to flow through valve increases, and can slow down or stop the flowing of liquid, and valve two ends form pressure reduction.
As shown in Figure 8, bypass valve type MR damper, by controlling by-pass valve two ends pressure reduction to reach regulable control damper damping force size, can realize effective adjustment of damper damping force size by control size of current and direction.When power failure, permanent magnet work on produce a certain size damping force steady buffer protection is carried out to system; When electric power normally works, by regulating field coil I 5 and field coil II 7 size of current and direction in twin coil, the real-time adjustment in a big way can be carried out to MR damper damping force.
Claims (1)
1. adopt permanent magnet and twin coil to carry out a magnetic rheological valve for complex controll, it is characterized in that comprising: screw I (1), left end cap (2), seal ring I (3), left drum (4), field coil I (5), permanent magnet (6), field coil II (7), right drum (8), right end cap (9), screw II (10), seal ring II (11), right positioning disk (12), damping disc (13), seal ring III (14), left positioning disk (15) and valve body (16); Left end cap (2) and valve body (16) transition fit, left end cap (2) is fixedly connected with by screw I (1) with valve body (16); Permanent magnet (6) and valve body (16) transition fit, permanent magnet (6) is positioned at the groove that left drum (4) and right drum (8) are formed, permanent magnet (6) left side is by left drum (4) right-hand member positioning compression, and permanent magnet (6) right side is by right drum (8) left end positioning compression; Left drum (4) left side and left end cap (2) right side transition fit, adopt seal ring I (3) to seal between left drum (4) and left end cap (2); Right drum (8) right side and right end cap (9) left side transition fit, adopt seal ring II (11) to seal between right drum (8) and right end cap (9); Left drum (4) right side and right drum (8) left side transition fit, adopt seal ring III (14) to seal between left drum (4) and right drum (8); Field coil I (5) is wound in the winding slot of left drum (4), and its lead-in wire is derived by the fairlead A on left end cap (2); Field coil II (7) is wound in the winding slot of right drum (8), and its lead-in wire is derived by the fairlead B on right end cap (9); Right end cap (9) and valve body (16) transition fit, right end cap (9) is fixedly connected with by screw II (10) with valve body (16); Left positioning disk (15) radial direction and left drum (4) transition fit, left positioning disk (15) axial left end is compressed by left end cap (2), and left positioning disk (15) axial right-hand member is by left drum (4) shoulder positioning compression; Right positioning disk (12) radial direction and right drum (8) transition fit, right positioning disk (12) axial right-hand member is compressed by right end cap (9), and right positioning disk (12) axial left end is by right drum (8) shoulder positioning compression; Damping disc (13) radial direction and left drum (4) and right drum (8) transition fit, damping disc (13) axial left end is by left drum (4) shoulder positioning compression, and damping disc (13) axial right-hand member is by right drum (8) shoulder positioning compression; Damping disc (13) is processed with the identical waist through hole of 4 uniform structures, forms magnetic flow liquid liquid chunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235011.8U CN204610973U (en) | 2015-07-02 | 2015-07-02 | A kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235011.8U CN204610973U (en) | 2015-07-02 | 2015-07-02 | A kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll |
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| CN204610973U true CN204610973U (en) | 2015-09-02 |
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| CN201520235011.8U Expired - Fee Related CN204610973U (en) | 2015-07-02 | 2015-07-02 | A kind of magnetic rheological valve adopting permanent magnet and twin coil to carry out complex controll |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775426A (en) * | 2018-07-30 | 2018-11-09 | 江苏大学 | A kind of magnetic fluid valve |
| CN113124221A (en) * | 2021-04-22 | 2021-07-16 | 中国矿业大学 | Compound drive formula magnetorheological valve |
-
2015
- 2015-07-02 CN CN201520235011.8U patent/CN204610973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775426A (en) * | 2018-07-30 | 2018-11-09 | 江苏大学 | A kind of magnetic fluid valve |
| CN113124221A (en) * | 2021-04-22 | 2021-07-16 | 中国矿业大学 | Compound drive formula magnetorheological 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: 20150902 Termination date: 20170702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |