CN204003728U - A kind of unicoil damping clearance adjustable type magnetic rheology valve - Google Patents
A kind of unicoil damping clearance adjustable type magnetic rheology valve Download PDFInfo
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- CN204003728U CN204003728U CN201420438499.XU CN201420438499U CN204003728U CN 204003728 U CN204003728 U CN 204003728U CN 201420438499 U CN201420438499 U CN 201420438499U CN 204003728 U CN204003728 U CN 204003728U
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- valve
- end cap
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- spool
- valve body
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Abstract
The utility model discloses a kind of unicoil damping clearance adjustable type magnetic rheology valve, mainly by end cap, spool, valve body, valve pocket, field coil and locking nut etc., formed.When valve core rotation is to correct position, and while inputting a certain size electric current to field coil, in two sections of taper damping clearances that can form at spool and valve pocket, produce magnetic field, the direction in magnetic field is substantially vertical with the mobile direction of magnetic flow liquid.When magnetic flow liquid flows into taper damping clearance, become rapidly semisolid under magnetic fields, its viscosity increases with the increase of magnetic induction intensity rapidly, can slow down or stop flowing of magnetic flow liquid, thereby causes the pressure reduction at damping clearance two ends to increase.By controlling the working position of spool and the size of field coil input current, can obtain larger magnetic rheological valve inlet outlet pressure differential.The response rapid sensitive of this magnetic rheological valve, stable performance, is particularly suitable for the wider hydraulic servo control system of pressure regulation range.
Description
Technical field
The utility model relates to a kind of magnetic rheological valve, relates in particular to a kind of unicoil damping clearance adjustable type magnetic rheology valve.
Background technique
Traditional hydraulic control valve comprises position control valve, flow control valve and pressure controlled valve.These control valves all include movable mechanical part, i.e. the general relative movement by spool and valve body reaches the control to system pressure and flow.But hydraulic control valve arrangement is more complicated, processing request is high, volume is large, cost is high, the problem such as also have that wayward, low-response, loss are large, oil contamination, operational noise are large.
As a kind of novel intelligent control valve, magnetic rheological valve is to take a kind of novel hydraulic control valve that magnetic flow liquid is working medium.Magnetic flow liquid, under magnetic fields, can change the visco-plastic body with certain shear yield strength into from free-pouring Newtonian fluid, reverts to again free-pouring liquid condition after removing magnetic field simultaneously.The pressure of magnetic rheological valve and flow can be controlled by impressed current, so speed of response is high, noise is low, energy consumption is little, working stability is reliable, has a good application prospect.
The quality of magnetic rheological valve service behaviour depends primarily on the structural design of magnetic flow liquid work damping clearance thickness and valve.At present conventional magnetic rheological valve structure mainly contains: the working clearance design magnetic rheological valve that the built-in magnetic rheological valve between spool and coil and working clearance are designed to circular ring type and disc type hybrid type in the external magnetic rheological valve between valve body and coil, working clearance design.But, the damping clearance thickness of this three classes magnetic rheological valve is all fixed non-adjustable, thereby valve inlet outlet pressure differential can only regulate by controlling size of current in field coil within the specific limits, pressure reduction regulation range is narrower, regulative mode is single, can only be applied in low service system, thereby hinder the application development of magnetic rheological valve at industrial field.In addition, in order to reach large as far as possible valve inlet outlet pressure differential, control effect, in some magnetic rheological valve structural design, artificially damping clearance Thickness Design is too small or increase effective damping length, while being easy to like this cause valve work because the contour structure size of the too small obstruction of damping clearance or valve is excessive.
Summary of the invention
In order to overcome the problem existing in background technique and to meet the pressure reduction regulation range requirement of magnetic rheological valve under actual service condition, the utility model proposes a kind of unicoil damping clearance adjustable type magnetic rheology valve.The spool of this magnetic rheological valve and valve pocket adopt conical surface structure, by mechanical rotation spool, can make the clearance distance that forms between spool and valve pocket adjustable, by controlling valve element position with regard to the inlet outlet pressure differential of controllable magnetic rheology valve.Separately, when electric current to field coil input certain orientation and size, can in two damping clearances of spool and valve pocket composition, produce magnetic field, the direction in the magnetic field direction mobile with magnetic flow liquid is substantially vertical.When magnetic flow liquid flows into the damping clearance of magnetic rheological valve, under magnetic fields, become rapidly semisolid, the viscosity of magnetic flow liquid increases sharply with the increase of magnetic intensity, causes the pressure difference at damping clearance two ends to increase.Magnetic flow liquid is during through two damping clearances, and magnetic rheological valve is imported and exported and had larger pressure reduction.By controlling the working position of spool and the size of field coil input current, magnetic rheological valve inlet and outlet pressure can be controlled in real time poor, and it is fast to have wider pressure regulation range, stable work in work, response.
The utility model solves the technological scheme that its technical problem adopts and comprises: spool (1), locking nut (2), left end cap (3), screw I (4), valve pocket (5), valve body (6), right end cap (7), seal ring I (8), combined seal ring (9), screw II (10), seal ring II (11), field coil (12), seal ring III (13) and seal ring IV (14); Left end cap (3) is fixedly connected with by screw I (4) with valve body (6), and left end cap (3) and valve body (6) transition fit, seal by seal ring IV (14) between left end cap (3) and valve body (6); Valve pocket (5) and valve body (6) Spielpassung, left end cap (3) is close in the left side of valve pocket (5), and right end cap (7) is close in the right side of valve pocket (5); Right end cap (7) is fixedly connected with by screw II (10) with valve body (6), and right end cap (7) and valve body (6) Spielpassung, seal by seal ring I (8) between right end cap (7) and valve body (6); Field coil (12) is wound in the winding slot of valve pocket (5), and its lead-in wire is drawn from the fairlead of valve body (6) via the wire lead slot of valve pocket (5); In field coil (12) both sides, between valve pocket (5) and valve body (6), by seal ring II (11) and seal ring III (13), seal respectively; Outside thread has been attacked in spool (1) left side, can be threaded with the interior threaded hole on left end cap (3), and carry out spool location by locking nut (2) mechanical interlocking; Spool (1) right side is supported by right end cap (7) intermediate support hole, spool (1) right side and right end cap (7) intermediate support hole transition fit, seal by combined seal ring (9) between spool (1) and right end cap (7); Valve body (6) left side has inner thread mouth I mouth, and by being attached thereto logical hydraulic tubing, magnetic flow liquid can flow into magnetic rheological valve inner chamber from I mouth; Valve body (6) right side has inner thread mouth O mouth, and by being attached thereto logical hydraulic tubing, magnetic flow liquid can flow out magnetic rheological valve inner chamber from O mouth.Spool (1) left end has pin-and-hole, can be connected with cross like spanner, is used for regulating spool working position, changes the working clearance size of magnetic rheological valve.Gap between spool (1) and valve pocket (5) forms the liquid chunnel of magnetic flow liquid.
The utility model is compared with background technique, and the beneficial effect having is:
(1) magnetic rheological valve fixing with damping clearance compared, and spool of the present utility model and valve pocket adopt cone structure, and the tapered gaps forming between spool and valve pocket distance is adjustable, and its pressure reduction regulation range is wider, and magnetic rheological valve service behaviour is more stable.
(2) compare with conventional unicoil circular ring type damping clearance magnetic rheological valve, what the utility model magnetic rheological valve adopted is unicoil taper damping clearance, can form two sections of effective damping gaps, and the length that the thickness of magnetic rheological valve damping clearance and spool stretch out right end cap is inversely proportional to, can realize supercharging and decompression by clockwise and anticlockwise movable valve plug, convenient to operation, action response is sensitive.
(3) compare with damping clearance mechanical adjustable twin coil magnetic rheological valve, when the utility model is applied in mesolow Hydraulic Power Transmission System system, pressure reduction adjustability accurately, strong operability, good airproof performance, stability be good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model valve core structure schematic diagram.
Fig. 3 is the utility model valve pocket structural representation.
Fig. 4 is the utility model working principle schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Figure 1 shows that the utility model structural representation, mainly comprise: spool 1, lock split nut 2, left end cap 3, screw I 4, valve pocket 5, valve body 6, right end cap 7, seal ring I 8, combined seal ring 9, screw II 10, seal ring II 11, field coil 12, seal ring III 13 and seal ring IV 14.
Fig. 2 is to be the utility model valve core structure schematic diagram, and in the middle of it, the working clearance locates to be designed to conical surface structure.
Figure 3 shows that the utility model valve pocket structural representation, be processed with winding slot A and wire lead slot B on valve pocket, field coil is wound in valve pocket winding slot A, and its lead-in wire is drawn in the fairlead from valve body via valve pocket wire lead slot B.
Figure 4 shows that the utility model working principle schematic diagram, wherein I and II are two sections of effective damping gaps.
The utility model working principle is as follows:
As shown in Figure 4, rotational valve core left end pin-and-hole, adjusts spool with respect to the extremely certain working position of valve pocket, and then rotational lock nut is determined the thickness of tapered gaps between spool and valve pocket.Then by outside lead, to field coil, input a certain size electric current, because electromagnetic effect will form closed magnetic field between spool, valve pocket, valve body and taper damping clearance, thereby in damping clearance I and damping clearance II, produce magnetic field, the direction in the magnetic field direction mobile with magnetic flow liquid is substantially vertical.When magnetic flow liquid passes through two sections of taper damping clearances of magnetic rheological valve, under magnetic fields, become rapidly semisolid, the catemer that formation is arranged along magnetic direction, the viscosity of magnetic flow liquid increases sharply and increases with the increase of additional magnetic induction intensity, cause the pressure reduction at two sections of damping clearance places to increase, thereby can slow down or stop flowing of liquid.Magnetic flow liquid from I mouth enter, O mouth is while flowing through whole magnetic rheological valve, magnetic rheological valve is imported and exported and is had larger pressure reduction.
By controlling the size of input current in spool working position and field coil, can effectively control the intensity of damping clearance internal magnetic field, thereby can control two sections of pressure reduction between damping clearance two ends, and then obtain higher magnetic rheological valve inlet outlet pressure differential.
Claims (3)
1. a unicoil damping clearance adjustable type magnetic rheology valve, it is characterized in that, comprising: spool (1), locking nut (2), left end cap (3), screw I (4), valve pocket (5), valve body (6), right end cap (7), seal ring I (8), combined seal ring (9), screw II (10), seal ring II (11), field coil (12), seal ring III (13) and seal ring IV (14); Left end cap (3) is fixedly connected with by screw I (4) with valve body (6), and left end cap (3) and valve body (6) transition fit, seal by seal ring IV (14) between left end cap (3) and valve body (6); Valve pocket (5) and valve body (6) Spielpassung, left end cap (3) is close in the left side of valve pocket (5), and right end cap (7) is close in the right side of valve pocket (5); Right end cap (7) is fixedly connected with by screw II (10) with valve body (6), and right end cap (7) and valve body (6) Spielpassung, seal by seal ring I (8) between right end cap (7) and valve body (6); Field coil (12) is wound in the winding slot of valve pocket (5), and its lead-in wire is drawn from the fairlead of valve body (6) via the wire lead slot of valve pocket (5); In field coil (12) both sides, between valve pocket (5) and valve body (6), by seal ring II (11) and seal ring III (13), seal respectively; Outside thread has been attacked in spool (1) left side, can be threaded with the interior threaded hole on left end cap (3), and carry out spool location by locking nut (2) mechanical interlocking; Spool (1) right side is supported by right end cap (7) intermediate support hole, spool (1) right side and right end cap (7) intermediate support hole transition fit, seal by combined seal ring (9) between spool (1) and right end cap (7); Valve body (6) left side has inner thread mouth I mouth, and by being attached thereto logical hydraulic tubing, magnetic flow liquid can flow into magnetic rheological valve inner chamber from I mouth; Valve body (6) right side has inner thread mouth O mouth, and by being attached thereto logical hydraulic tubing, magnetic flow liquid can flow out magnetic rheological valve inner chamber from O mouth.
2. a kind of unicoil damping clearance adjustable type magnetic rheology valve according to claim 1, is characterized in that: spool (1) left end has pin-and-hole, can be connected with cross like spanner.
3. a kind of unicoil damping clearance adjustable type magnetic rheology valve according to claim 1, is characterized in that: the gap between spool (1) and valve pocket (5) forms the liquid chunnel of magnetic flow liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420438499.XU CN204003728U (en) | 2014-08-05 | 2014-08-05 | A kind of unicoil damping clearance adjustable type magnetic rheology valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420438499.XU CN204003728U (en) | 2014-08-05 | 2014-08-05 | A kind of unicoil damping clearance adjustable type magnetic rheology valve |
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| Publication Number | Publication Date |
|---|---|
| CN204003728U true CN204003728U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420438499.XU Expired - Fee Related CN204003728U (en) | 2014-08-05 | 2014-08-05 | A kind of unicoil damping clearance adjustable type magnetic rheology valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913871A (en) * | 2015-05-18 | 2015-09-16 | 上海应用技术学院 | Single-coil magnetorheological fluid normal stress testing device |
| CN108757620A (en) * | 2018-08-10 | 2018-11-06 | 华东交通大学 | A kind of twin coil MR valve that damping clearance is automatically adjusted with liquid flow path direction |
| CN108953467A (en) * | 2018-09-23 | 2018-12-07 | 华东交通大学 | A kind of damping clearance adjustable type magnetic rheology damper with series connection fluid course |
| CN109519433A (en) * | 2019-01-14 | 2019-03-26 | 中国农业大学 | A kind of driving device and high velocity liquid pressure valve of high velocity liquid pressure valve |
| CN111173932A (en) * | 2020-02-15 | 2020-05-19 | 重庆工商大学 | Pressure self-adaptation sealing device based on magnetic fluid |
| CN111350712A (en) * | 2020-03-20 | 2020-06-30 | 中国矿业大学 | Magnetorheological valve with adjustable radial damping clearance |
-
2014
- 2014-08-05 CN CN201420438499.XU patent/CN204003728U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913871A (en) * | 2015-05-18 | 2015-09-16 | 上海应用技术学院 | Single-coil magnetorheological fluid normal stress testing device |
| CN108757620A (en) * | 2018-08-10 | 2018-11-06 | 华东交通大学 | A kind of twin coil MR valve that damping clearance is automatically adjusted with liquid flow path direction |
| CN108757620B (en) * | 2018-08-10 | 2023-06-20 | 华东交通大学 | Double-coil magnetorheological valve with damping gap automatically adjusted along with liquid flow direction |
| CN108953467A (en) * | 2018-09-23 | 2018-12-07 | 华东交通大学 | A kind of damping clearance adjustable type magnetic rheology damper with series connection fluid course |
| CN108953467B (en) * | 2018-09-23 | 2023-06-20 | 华东交通大学 | Damping gap adjustable magneto-rheological damper with serial liquid flow channels |
| CN109519433A (en) * | 2019-01-14 | 2019-03-26 | 中国农业大学 | A kind of driving device and high velocity liquid pressure valve of high velocity liquid pressure valve |
| CN109519433B (en) * | 2019-01-14 | 2024-01-30 | 中国农业大学 | Driving device of high-speed hydraulic valve and high-speed hydraulic valve |
| CN111173932A (en) * | 2020-02-15 | 2020-05-19 | 重庆工商大学 | Pressure self-adaptation sealing device based on magnetic fluid |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |