CN203009438U - Dual-coil magneto-rheological valve capable of mechanically adjusting damping clearances - Google Patents
Dual-coil magneto-rheological valve capable of mechanically adjusting damping clearances Download PDFInfo
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- CN203009438U CN203009438U CN 201320028353 CN201320028353U CN203009438U CN 203009438 U CN203009438 U CN 203009438U CN 201320028353 CN201320028353 CN 201320028353 CN 201320028353 U CN201320028353 U CN 201320028353U CN 203009438 U CN203009438 U CN 203009438U
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Abstract
The utility model discloses a dual-coil magneto-rheological valve capable of mechanically adjusting damping clearances. The dual-coil magneto-rheological valve capable of mechanically adjusting the damping clearance comprises an end cover, a valve core, a valve body, a reel, a self-locking nut, a coil I, a coil II, sealing rings, screws and the like. When the valve core rotates to a proper position and inputs current with certain direction and size to the coil I and the coil II, a magnetic field is generated in three conical damping clearances formed by the valve core and the reel, and the direction of the magnetic field is basically vertical to the flowing direction of magneto-rheological liquid. When the magneto-rheological liquid flows into the tapered damping clearances, the magneto-rheological liquid is changed into semisolid quickly under the action of the magnetic field and the viscosity of the magneto-rheological liquid is increased along with the increment of the magnetic induction intensity, so that the pressure difference between the two ends of the damping clearances is increased, and the magneto-rheological liquid slows down or stops flowing. Higher pressure difference between an inlet and an outlet of the magneto-rheological valve can be obtained by controlling the work position of the valve core and the size and the direction of the input current of the two coils. The magneto-rheological valve is applicable to a hydraulic servo control system with a wide pressure adjusting range.
Description
Technical field
The utility model relates to a kind of magnetic rheological valve, relates in particular to a kind of damping clearance mechanical adjustable twin coil 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 the start and stop of hydraulic actuator, 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.
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. general relative movement by spool and valve body reaches the control to system pressure and flow; In addition, hydraulic efficiency servo-valve generally also contains valve pocket in order to reach quick response in mechanical structure.On the whole, the hydraulic control valve arrangement is more complicated, and processing request is high, volume is large, cost is high, also has the problems such as wayward, low-response, operational noise be large.
Magnetic rheological valve is a kind of novel hydraulic control valve take magnetic flow liquid as working medium.Magnetic flow liquid can change the visco-plastic body with certain shear yield strength into from free-pouring Newtonian fluid under magnetic fields, revert to again free-pouring liquid condition after removing simultaneously magnetic field.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 position and the structure of magnetic flow liquid working clearance.At present magnetic rheological valve structure commonly used 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 the valve inlet and outlet pressure is poor less, and the pressure regulation range is narrower, and regulative mode is single, can only be applied in low service system, thereby hinder the commercial Application development of magnetic rheological valve.In addition, in some magnetic rheological valve structural design, in order to reach the large as far as possible poor control effect of valve inlet and outlet pressure, artificially or increase effective damping length too small the damping clearance Thickness Design, excessive because of the contour structure size of the too small obstruction of damping clearance or valve when being easy to like this cause valve work.
Summary of the invention
In order to overcome the problem that exists in background technique, the utility model proposes a kind of damping clearance mechanical adjustable twin coil magnetic rheological valve.The spool of this magnetic rheological valve and drum adopt the conical surface structure, by the mechanical rotation spool, can make the clearance distance that forms between spool and drum adjustable.In addition, be wound around two groups of coils (coil I, coil II) on drum, can form three damping clearances.When inputting respectively the electric current of certain orientation and size to coil I and coil II, can produce magnetic field in three damping clearances that spool and valve body form, the mobile direction of the direction in magnetic field and magnetic flow liquid is substantially vertical.When magnetic flow liquid flows into the damping clearance of magnetic rheological valve, become rapidly semisolid under magnetic fields, the viscosity of magnetic flow liquid increases sharply with the increase of magnetic intensity, causes the pressure difference increase at damping clearance two ends.Magnetic flow liquid is during through three damping clearances, and magnetic rheological valve is imported and exported and had larger pressure difference.By the working position of control spool and the size and Orientation of two coil input currents, can control in real time the magnetic rheological valve inlet and outlet pressure poor, and have wider pressure regulation range.
The technological scheme that its technical problem that solves the utility model adopts comprises: self-locking nut (1), screw I (2), seal ring I (3), spool (4), coil I (5), coil II (6), right end cap (7), screw II (8), combined seal ring (9), seal ring II (10), valve body (11), drum (12), left end cap (13); Left end cap (13) is fixedly connected with by screw I (2) with valve body (11), seals by seal ring I (3) between left end cap (13) and valve body (11); Drum (12) and valve body (11) Spielpassung, drum (12) left side are close to left end cap (13), and right end cap (7) is close in drum (12) right side; Right end cap (7) is fixedly connected with by screw II (8) with valve body (11), seals by seal ring II (10) between right end cap (7) and valve body (11); Coil I (5) is wound in the groove of drum (12) left side, and lead-in wire A draws via drum (12) wire lead slot and valve body (11) fairlead; Coil II (6) is wound in the groove of drum (12) right side, and lead-in wire B draws via drum (12) wire lead slot and valve body (11) fairlead;
Outside thread has been attacked in spool (4) left side, can be connected with the inner hole thread on left end cap (13), and by self-locking nut (1) locking, and spool (4) right side is by right end cap (7) upper support hole support; Seal by combined seal ring (9) between spool (4) and right end cap (7).Valve body (11) left side has inner thread mouth I mouth, and by being attached thereto the hydraulic tubing that connects, magnetic flow liquid can enter valve insertion from the I mouth; Valve body (11) right side has inner thread mouth O mouth, and by being attached thereto the hydraulic tubing that connects, magnetic flow liquid can flow out valve insertion from the O mouth.Spool (4) left end has pin-and-hole, can be connected with cross like spanner.Gap between spool (4) and drum (12) forms the liquid chunnel of magnetic flow liquid.
The utility model is compared with background technique, and the beneficial effect that has is:
(1) compare with the magnetic rheological valve that damping clearance is fixed, spool of the present utility model and drum adopt cone structure, and the tapered gaps that forms between spool and drum distance is adjustable, and its pressure regulation range is wider.
(2) compare with the unicoil magnetic rheological valve, be wound with two groups of coils on the utility model drum, can make the liquid chunnel of magnetic flow liquid form three damping clearances after conduction.Magnetic flow liquid is through the effect of three damping clearances, and magnetic rheological valve is imported and exported has larger pressure difference.In addition, magnetic intensity between damping clearance is controlled more flexible, and the magnetic rheological valve inlet and outlet pressure is poor has a better control performance thereby make.
Description of drawings
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 bobbin bracket structure schematic diagram.
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 Fig. 1, Fig. 2 and shown in Figure 3, the utility model comprises: self-locking nut 1, screw I 2, seal ring I 3, spool 4, coil I 5, coil II 6, right end cap 7, screw II 8, combined seal ring 9, seal ring II 10, valve body 11, drum 12, left end cap 13; Left end cap 13 is fixedly connected with by screw I 2 with valve body 11, seals by seal ring I3 between left end cap 13 and valve body 11; Drum 12 and valve body 11 Spielpassung, drum 12 left sides are close to left end cap 13, and right end cap 7 is close in drum 12 right sides; Right end cap 7 is fixedly connected with by screw II8 with valve body 11, seals by seal ring II 10 between right end cap 7 and valve body 11; Coil I5 is wound in drum 12 left side grooves, and lead-in wire A draws via drum 12 wire lead slots and valve body 11 fairleads; Coil II6 is wound in drum 12 right side grooves, and lead-in wire B draws via drum 12 wire lead slots and valve body 11 fairleads; Outside thread has been attacked in spool 4 left sides, can be connected with the inner hole thread on left end cap 13, and by self-locking nut 1 locking, and spool 4 right sides are supported by right end cap 7 upper support holes; Seal by combined seal ring 9 between spool 4 and right end cap 7.Valve body 11 left sides have inner thread mouth I mouth, and by being attached thereto the hydraulic tubing that connects, magnetic flow liquid can enter valve insertion from the I mouth; Valve body 11 right sides have inner thread mouth O mouth, and by being attached thereto the hydraulic tubing that connects, magnetic flow liquid can flow out valve insertion from the O mouth.Spool 4 left end have pin-and-hole, can be connected with cross like spanner, can make the tapered gaps between spool 4 and drum 12 change by the rotary cross spanner.Gap between spool 4 and drum 12 forms the liquid chunnel of magnetic flow liquid, under the effect in magnetic field, can consist of three effective taper damping clearances.
The utility model working principle is as follows:
As shown in Figure 4, rotational valve core is adjusted the working position of spool in drum, determines the thickness of tapered gaps between spool and drum.Then input respectively the electric current of certain orientation and size in the lead-in wire B of the lead-in wire A of coil I and coil II, because electromagnetic effect will form closed magnetic field between spool, drum, valve body and taper damping clearance, thereby produce magnetic field in damping clearance I, damping clearance I II and damping clearance I III, the direction in magnetic field is substantially vertical with the direction that magnetic flow liquid flows.When magnetic flow liquid passes through three taper damping clearances of magnetic rheological valve, become rapidly semisolid under magnetic fields, the catemer that formation is arranged along magnetic direction, the viscosity of magnetic flow liquid increases sharply and increases with the increase that adds magnetic induction intensity, cause the pressure difference at three damping clearance two ends to increase, thereby can slow down or stop the mobile of liquid.Magnetic flow liquid is during through three damping clearances, and magnetic rheological valve is imported and exported and had larger pressure difference.
Working position by controlling spool and the size and Orientation of two coil input currents can be controlled the intensity of damping clearance internal magnetic field, thereby can control the pressure difference between three damping clearance two ends, and then it is poor to obtain higher magnetic rheological valve inlet and outlet pressure.
Compare with the magnetic rheological valve that conventional unicoil damping clearance is fixing, the tapered gaps distance that forms between spool of the present utility model and drum is adjustable, and be wound with two groups of coils on drum, make the magnetic intensity between damping clearance control more flexible, magnetic rheological valve is imported and exported also has larger pressure difference, and have better control performance, be particularly suitable for the wide hydraulic servo control system of pressure regulation range, thereby can further widen the industrial applicability of magnetic rheological valve.
Claims (4)
1. a damping clearance mechanical adjustable twin coil magnetic rheological valve, is characterized in that comprising: self-locking nut (1), screw I (2), seal ring I (3), spool (4), coil I (5), coil II (6), right end cap (7), screw II (8), combined seal ring (9), seal ring II (10), valve body (11), drum (12), left end cap (13); Left end cap (13) is fixedly connected with by screw I (2) with valve body (11), seals by seal ring I (3) between left end cap (13) and valve body (11); Drum (12) and valve body (11) Spielpassung, drum (12) left side are close to left end cap (13), and right end cap (7) is close in drum (12) right side; Right end cap (7) is fixedly connected with by screw II (8) with valve body (11), seals by seal ring II (10) between right end cap (7) and valve body (11); Coil I (5) is wound in the groove of drum (12) left side, and lead-in wire A draws via drum (12) wire lead slot and valve body (11) fairlead; Coil II (6) is wound in the groove of drum (12) right side, and lead-in wire B draws via drum (12) wire lead slot and valve body (11) fairlead; Outside thread has been attacked in spool (4) left side, can be connected with the inner hole thread on left end cap (13), and by self-locking nut (1) locking, and spool (4) right side is by right end cap (7) upper support hole support; Seal by combined seal ring (9) between spool (4) and right end cap (7).
2. a kind of damping clearance mechanical adjustable twin coil magnetic rheological valve according to claim 1 is characterized in that: valve body (11) left side has inner thread mouth I mouth, and by being attached thereto the hydraulic tubing that connects, magnetic flow liquid can enter valve insertion from the I mouth; Valve body (11) right side has inner thread mouth O mouth, and by being attached thereto the hydraulic tubing that connects, magnetic flow liquid can flow out valve insertion from the O mouth.
3. a kind of damping clearance mechanical adjustable twin coil magnetic rheological valve according to claim 1, it is characterized in that: spool (4) left end has pin-and-hole, can be connected with cross like spanner.
4. a kind of damping clearance mechanical adjustable twin coil magnetic rheological valve according to claim 1, is characterized in that: the liquid chunnel of the gap formation magnetic flow liquid between spool (4) and drum (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028353 CN203009438U (en) | 2013-01-20 | 2013-01-20 | Dual-coil magneto-rheological valve capable of mechanically adjusting damping clearances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320028353 CN203009438U (en) | 2013-01-20 | 2013-01-20 | Dual-coil magneto-rheological valve capable of mechanically adjusting damping clearances |
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| Publication Number | Publication Date |
|---|---|
| CN203009438U true CN203009438U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320028353 Expired - Fee Related CN203009438U (en) | 2013-01-20 | 2013-01-20 | Dual-coil magneto-rheological valve capable of mechanically adjusting damping clearances |
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| CN (1) | CN203009438U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062146A (en) * | 2013-01-20 | 2013-04-24 | 华东交通大学 | Damping-clearance mechanical adjustable double-coil magnetorheological valve |
| CN104064323A (en) * | 2014-05-30 | 2014-09-24 | 安徽三和电力技术有限公司 | Magnetically controlled reactor for reactive compensation cabinet |
| 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 |
| CN111350712A (en) * | 2020-03-20 | 2020-06-30 | 中国矿业大学 | Magnetorheological valve with adjustable radial damping clearance |
-
2013
- 2013-01-20 CN CN 201320028353 patent/CN203009438U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062146A (en) * | 2013-01-20 | 2013-04-24 | 华东交通大学 | Damping-clearance mechanical adjustable double-coil magnetorheological valve |
| CN103062146B (en) * | 2013-01-20 | 2015-04-22 | 华东交通大学 | Damping-clearance mechanical adjustable double-coil magnetorheological valve |
| CN104064323A (en) * | 2014-05-30 | 2014-09-24 | 安徽三和电力技术有限公司 | Magnetically controlled reactor for reactive compensation cabinet |
| 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 |
| 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: 20130619 Termination date: 20160120 |
|
| EXPY | Termination of patent right or utility model |