CN105715802A - Magnetorheological pressure control valve - Google Patents
Magnetorheological pressure control valve Download PDFInfo
- Publication number
- CN105715802A CN105715802A CN201410730809.XA CN201410730809A CN105715802A CN 105715802 A CN105715802 A CN 105715802A CN 201410730809 A CN201410730809 A CN 201410730809A CN 105715802 A CN105715802 A CN 105715802A
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- Prior art keywords
- valve body
- upper valve
- magnetic
- lower valve
- pressure control
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- 239000007788 liquid Substances 0.000 claims description 32
- 239000000696 magnetic material Substances 0.000 claims description 9
- 230000035699 permeability Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Abstract
The invention relates to a magnetorheological pressure control valve. The magnetorheological pressure control valve comprises a valve cover, a coil assembly 2, an upper valve body, a lower valve body, a lower valve core, a first rubber seal ring, a second rubber seal ring, a work cavity, an upper valve core, a reset spring and an adjusting nut. The valve cover is fixedly connected to the upper outer side of the lower valve body. The adjusting nut is connected to the inner side of the upper valve body. The reset spring in the compressed state is arranged under the adjusting nut. The lower portion of the reset spring presses on the upper valve core. The upper valve core is arranged in the upper valve body. The lower portion of the upper valve core presses at the upper end of a disk on the lower valve core. The lower valve core is arranged in the lower valve body. The lower portion of the lower valve core presses on the upper side of an oil inlet of the lower valve body. The work cavity is formed between the upper valve body and the lower valve body. The coil assembly is arranged in a groove of the upper valve body. The upper side of the coil assembly makes contact with the inner side of the valve cover. According to the magnetorheological pressure control valve, the coil assembly is arranged on the upper side of the work cavity and far away from magnetorheological fluid, so that the influence of heating of an electromagnetic coil on the magnetorheological fluid is smaller, and the heat dissipation effect of the magnetorheological fluid is better.
Description
Technical field
The present invention relates to a kind of magnetorheological pressure control valve, particularly a kind of unlatching pressure controlling valve by controlling the spool extruding force coming from magnetic flow liquid suffered in motor process, and then realize the magnetorheological pressure control valve that hydraulic system pressure controls.
Background technology
Common pressure control valve controls system pressure usually through the mode of the pretightning force controlling valve core spring.Traditional pressure-control valve controls the pretightning force of valve core spring by changing the magnetic field of solenoid, thus changing power required when spool is opened, and then controls the pressure of system.In traditional design, machining accuracy being required height, homogeneity of product is poor；The requirement of valve core spring is significantly high, and not easily realize the change quick, stepless of pressure；Spool amount of movement is general all less；The power consumed is very big, and energy efficiency is not high；Pressure adjustable scope under certain volume requirement is little.
Magnetorheological pressure control valve described in earlier application ZL201220409103.X, it is disadvantageous in that the structure needed for realizing this effect pressure controlled is excessively complicated, and required sensor is expensive and makes control method complicated；Valve inner employs 4 O and seals, and this is all comparatively laborious for processing and assembling；Coil block is arranged in the outside of working chamber, limits the effective dimensions of working chamber；Needing by the structure beyond valve body it addition, the magnetic line of force in designed magnetic field is set up, this have impact on the maximization controlling valve beneficial aspects.
Along with the development of modern science and technology, the improving constantly of application request, also pressure-control valve is proposed the requirement of miniaturization, intellectuality, economization and energy-conservation height such as grade.This is accomplished by the operation principle to pressure-control valve, structure carries out innovative design.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, easily manufactured, energy efficiency is high, pressure-responsive is fast, and the magnetorheological pressure control valve of feasible system pressure steplessization, Based Intelligent Control.
Realize the purpose of the present invention to be adopted the technical scheme that: this pressure-control valve include valve gap, by coil and the coil block constituted every magnetic overcoat, upper valve body, lower valve body, bottom spool, the first rubber seal, built with the working chamber of magnetic flow liquid, upper valve core, back-moving spring, adjusting nut and the second rubber seal, described valve gap is the upper outside that permeability magnetic material, valve gap and lower valve body screw thread are connected to lower valve body；Described lower valve body is welded by lower valve body magnetism-isolating loop and lower valve body magnetic conduction main body, and lower valve body and upper valve body are welded in the downside of upper valve body, and upper valve body is welded by magnetic guiding loop in the outer magnetic guiding loop of upper valve body, upper valve body magnetism-isolating loop and upper valve body；The inner side that upper valve body and adjusting nut are threadedly connected in upper valve body magnetic guiding loop, adjusting nut is permeability magnetic material；Adjusting nut is arranged below the back-moving spring of compressive state, and the lower section of back-moving spring is pressed in the top of upper valve core, and upper valve core is arranged within upper valve body, and upper valve core is NULL；Being pressed in the upper end of bottom spool uppermost disk below upper valve core, bottom spool is arranged within lower valve body, is pressed in the upside of lower valve body oiler below bottom spool, and bottom spool is permeability magnetic material；Forming working chamber between upper valve body and lower valve body, coil block is arranged in the groove of upper valve body, with the interior side contacts of valve gap on the upside of coil block.
The present invention has the advantages that relative to prior art:
1, coil block is arranged in the upside of working chamber by the present invention, and away from magnetic flow liquid, solenoid heating is less on the impact of magnetic flow liquid, and the radiating effect of magnetic flow liquid is better.
2, the present invention utilizes the operation principle of magnetorheological squeeze mode and solenoid is arranged in the outside of working chamber, it is possible to relatively flexible design magnetic circuit trend and spool size.Compared with other pressure-control valve, the diameter of the extruding disk on the upside of bottom spool is bigger, and when uniform pressure span of control, the number of turn of required solenoid is less, reduces coil heating；When identical voltage and overall dimensions, it is possible to obtain bigger pressure control range.
3, present configuration is simple, easily manufactured, it is possible to accesses ECU and realizes intelligentized control method, and is capable of steplessization to pressure and controls.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is magnetic flow liquid operation principle schematic diagram in working chamber of the present invention.
Fig. 3 is the schematic diagram of magnetic line of force trend in magnetic circuit of the present invention.
Detailed description of the invention
Shown in accompanying drawing 1: this magnetorheological pressure control valve includes: valve gap 1, by coil and the coil block 2 constituted every magnetic overcoat, upper valve body 3, lower valve body 4, bottom spool 5, built with the working chamber 7 of magnetic flow liquid, upper valve core 8, back-moving spring 10, adjusting nut 11 and multiple rubber seal (6,9).Described valve gap is the upper outside that permeability magnetic material, valve gap 1 and lower valve body 4 are threadedly connected to lower valve body 4；Described lower valve body 4 is welded by lower valve body magnetism-isolating loop 4-1 and lower valve body magnetic conduction main body 4-2, lower valve body 4 and upper valve body 3 are welded in the downside of upper valve body 3, and upper valve body 3 is welded by magnetic guiding loop 3-3 in upper valve body outer magnetic guiding loop 3-1, upper valve body magnetism-isolating loop 3-2 and upper valve body；The inner side that upper valve body 3 and adjusting nut 11 are threadedly connected in upper valve body magnetic guiding loop 3-3, adjusting nut 11 is permeability magnetic material；Adjusting nut 11 is arranged below the back-moving spring 10 of compressive state, and the lower section of back-moving spring 10 is pressed in the top of upper valve core 8, and upper valve core 8 is arranged within upper valve body 3, and upper valve core 8 is NULL；Being pressed in the upper end of bottom spool 5 uppermost disk below upper valve core 8, bottom spool 5 is arranged within lower valve body 4, is pressed in the upside of lower valve body 4 oiler 4-4 below bottom spool 5, and bottom spool 5 is permeability magnetic material；Forming working chamber 7 between upper valve body 3 and lower valve body 4, working chamber 7 is built with magnetic flow liquid；Coil block 2 is arranged in the groove of upper valve body 3, and with the interior side contacts of valve gap 1 on the upside of coil block 2, described lower valve body 4 is provided with oil-out 4-3, oiler 4-4.
As shown in Figure 1, the magnetorheological pressure control valve working chamber 7 made according to such scheme fills magnetic rheological liquid.Magnetic flow liquid, under the action of a magnetic field, is changed to the particular matter of similar solid by common Newtonian fluid, presents the mechanical property of similar solid, and within the time of a few tens of milliseconds, its yield strength is increased to a certain numerical value by 0.This process is called the solidification of magnetic flow liquid, and the yield strength numerical value after solidification is relevant with the character of magnetic field intensity and magnetic flow liquid.The process that magnetic flow liquid solidifies is reversible, and when removing magnetic field, magnetic flow liquid becomes again common Newtonian fluid again.Reversible, the rapid and easily controllable feature of magnetic rheology effect makes magnetorheological pressure control valve can become electrical control and simple in construction in mechanical system and respond quick device.
The present invention utilizes the operation principle of magnetorheological squeeze mode, as shown in Figure 2 (in Fig. 2, a represents that magnetic flow liquid flows to, and b represents that the magnetic line of force moves towards), to coil electricity, produces magnetic field；Magnetic flow liquid solidifies under the influence of a magnetic field, and when the effect that bottom spool 5 is subject to oiler 4-4 inner high voltage oil begins to move up, the magnetic flow liquid on the upside of working chamber 7 is squeezed and produces extruding force, hinders bottom spool 5 to move up.By the magnetic conductivity of each parts of optimal design-aside, (in valve gap 1, upper valve body outer magnetic guiding loop 3-1, lower valve body magnetic conduction main body 4-2, bottom spool 5, upper valve body, magnetic guiding loop 3-3, adjusting nut 11 are permeability magnetic material to the present invention；Upper valve body magnetism-isolating loop 3-2, lower valve body magnetism-isolating loop 4-1, upper valve core 8 are NULL), reasonably devise magnetic circuit: as shown in Figure 3 (in Fig. 3, c represents that the magnetic line of force moves towards), the magnetic line of force in magnetic field farthest passes through magnetic flow liquid and vertical with the flow direction of magnetic flow liquid so that magnetic flow liquid normal operation.
Present invention can apply to vibroshock, but present invention application is not limited to this.This sentences the use in vibroshock is an application example, and its operation principle is described.As shown in Figure 1: the coil block 2 in magnetorheological pressure control valve is connected with control unit, the hydraulic oil in vibroshock flows into from the oiler 4-4 of lower valve body 4, and on lower valve body 4, oil-out 4-3 is connected with vibroshock low pressure chamber.The electric current passed through in control unit control coil assembly 2 carrys out the magnetic field intensity of control action magnetic flow liquid in working chamber 7 and then changes the yield strength of magnetic current liquid.The magnetorheological pressure control valve made according to such scheme carries out when working as follows: the electric current passed through in control unit control coil assembly 2 is that setting value is to obtain the magnetic field required, now in working chamber 7, magnetic flow liquid yield strength increases, and the movement of bottom spool 5 is subject in working chamber 7 control of magnetic flow liquid；Shock absorbers compression, under vibroshock, cavity pressure increases, and the oil liquid pressure in oiler 4-4 raises, and the lifting force acting on bottom spool 5 increases；Promote the active force of bottom spool 5 more than in back-moving spring 10 thrust and working chamber 7 during magnetic flow liquid extruding force sum, bottom spool 5 moves and forms gap between the entrance of lower valve body oiler 4-4, make hydraulic oil in oiler 4-4 by oil-out 4-3 and vibroshock low pressure chamber UNICOM, oil pressure in oiler 4-4 declines, until when it promotes the active force of bottom spool 5 to be equal to magnetic flow liquid extruding force sum in back-moving spring 10 thrust and working chamber 7, bottom spool 5 stress balance, in vibroshock, fluid pressure reaches stable；When vibroshock stop motion, under vibroshock, cavity pressure is recovered normal pressure by high pressure, oil pressure in oiler 4-4 is become normal pressure from high pressure, bottom spool 5 starts to move down, and now, the magnetic flow liquid in working chamber 7 is negligible the resistance of valve core movement is only small, the back-moving spring 10 being in compressive state promotes bottom spool 5 by upper valve core 8, bottom spool 5 quickly being moved down again contact with lower valve body 4, oiler 4-4 disconnects with oil-out 4-3 again, and magnetorheological pressure control valve restPoses；Bottom spool 5 moves past in journey, the size of current passed through in control unit control coil assembly 2, it is thus achieved that different magnetic field intensities so that the yield strength change of magnetic flow liquid in working chamber 7, the active force that magnetic flow liquid acts on bottom spool 5 changes, thus realizing the Stress control to fluid.When the yield strength of magnetic flow liquid becomes very big, the pressure-bearing scope of present invention application can be very big.
Claims (5)
1. a magnetorheological pressure control valve, this pressure-control valve includes valve gap (1), by coil and the coil block (2) constituted every magnetic overcoat, upper valve body (3), lower valve body (4), bottom spool (5), the first rubber seal (6), working chamber (7), upper valve core (8), back-moving spring (10), adjusting nut (11) and the second rubber seal (9), it is characterised in that: described valve gap (1) is permeability magnetic material, valve gap (1) and lower valve body (4) are fixedly connected on the upper outside of lower valve body (4)；Described lower valve body (4) is welded by lower valve body magnetism-isolating loop (4-1) and lower valve body magnetic conduction main body (4-2), and upper valve body (3) is welded by magnetic guiding loop (3-3) in the outer magnetic guiding loop (3-1) of upper valve body, upper valve body magnetism-isolating loop (3-2) and upper valve body；The inner side that upper valve body (3) and adjusting nut (11) are threadedly connected in upper valve body magnetic guiding loop (3-3), adjusting nut (11) is arranged below the back-moving spring (10) of compressive state, the lower section of back-moving spring (10) is pressed in the top of upper valve core (8), and upper valve core (8) is arranged within upper valve body (3)；Upper valve core (8) lower section is pressed in the upper end of bottom spool (5) uppermost disk, and bottom spool (5) is arranged within lower valve body (4), and bottom spool (5) lower section is pressed in lower valve body (4) oiler (upside of 4-40；Working chamber (7) is formed between upper valve body (3) and lower valve body (4), coil block (2) is arranged in the groove of upper valve body (3), the interior side contacts of coil block (2) upside and valve gap (1), described lower valve body (4) is provided with oil-out (4-3), oiler (4-4).
2. a kind of magnetorheological pressure control valve according to claim 1, it is characterised in that: described working chamber (7) is built with magnetic flow liquid.
3. a kind of magnetorheological pressure control valve according to claim 1, it is characterised in that: described coil block (2) is arranged in the upside of working chamber.
4. a kind of magnetorheological pressure control valve according to claim 1, it is characterised in that: described lower valve body (4) is provided with oil-out (4-3), oiler (4-4).
5. a kind of magnetorheological pressure control valve according to claim 1, it is characterised in that: in valve gap (1), upper valve body outer magnetic guiding loop (3-1), lower valve body magnetic conduction main body (4-2), bottom spool (5), upper valve body, magnetic guiding loop (3-3), adjusting nut (11) are permeability magnetic material；Upper valve body magnetism-isolating loop (3-2), lower valve body magnetism-isolating loop (4-1), upper valve core (8) are NULL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730809.XA CN105715802B (en) | 2014-12-05 | 2014-12-05 | Magnetorheological pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730809.XA CN105715802B (en) | 2014-12-05 | 2014-12-05 | Magnetorheological pressure control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715802A true CN105715802A (en) | 2016-06-29 |
| CN105715802B CN105715802B (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410730809.XA Active CN105715802B (en) | 2014-12-05 | 2014-12-05 | Magnetorheological pressure control valve |
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| CN (1) | CN105715802B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628016A (en) * | 2017-09-01 | 2018-01-26 | 金勇� | Water brake valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167327A (en) * | 1993-12-17 | 1995-07-04 | Tdk Corp | Displacement enlarging mechanism for actuator |
| CN2725599Y (en) * | 2004-05-28 | 2005-09-14 | 重庆大学 | Magnetic rheoliquid controlling valve |
| US20070144843A1 (en) * | 2005-12-27 | 2007-06-28 | Delphi Technologies, Inc. | MR-fluid hydraulic mount |
| CN102418675A (en) * | 2010-09-28 | 2012-04-18 | 西门子公司 | Wind turbine active damping arrangement |
| CN103148257A (en) * | 2012-07-11 | 2013-06-12 | 吉林大学 | Magnetorheological flow control valve |
| CN103591363A (en) * | 2012-08-17 | 2014-02-19 | 长春孔辉汽车科技有限公司 | Magnetorheological pressure control valve |
| CN204300380U (en) * | 2014-12-05 | 2015-04-29 | 长春孔辉汽车科技有限公司 | Magnetorheological pressure control valve |
-
2014
- 2014-12-05 CN CN201410730809.XA patent/CN105715802B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167327A (en) * | 1993-12-17 | 1995-07-04 | Tdk Corp | Displacement enlarging mechanism for actuator |
| CN2725599Y (en) * | 2004-05-28 | 2005-09-14 | 重庆大学 | Magnetic rheoliquid controlling valve |
| US20070144843A1 (en) * | 2005-12-27 | 2007-06-28 | Delphi Technologies, Inc. | MR-fluid hydraulic mount |
| CN102418675A (en) * | 2010-09-28 | 2012-04-18 | 西门子公司 | Wind turbine active damping arrangement |
| CN103148257A (en) * | 2012-07-11 | 2013-06-12 | 吉林大学 | Magnetorheological flow control valve |
| CN103591363A (en) * | 2012-08-17 | 2014-02-19 | 长春孔辉汽车科技有限公司 | Magnetorheological pressure control valve |
| CN204300380U (en) * | 2014-12-05 | 2015-04-29 | 长春孔辉汽车科技有限公司 | Magnetorheological pressure control valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107628016A (en) * | 2017-09-01 | 2018-01-26 | 金勇� | Water brake valve |
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| CN105715802B (en) | 2018-03-27 |
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Effective date of registration: 20190107 Address after: 313000 No. 18-102 Industrial Road, South Taihu High-tech Industrial Park, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Address before: 130312 No. 5177 Chaoda Road, Changchun High-tech Industrial Development Zone, Jilin Province Patentee before: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO.,LTD. |
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Denomination of invention: Magnetorheological pressure control valve Effective date of registration: 20191021 Granted publication date: 20180327 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Registration number: Y2019330000131 |
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Date of cancellation: 20210806 Granted publication date: 20180327 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Registration number: Y2019330000131 |
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Denomination of invention: Magnetorheological pressure control valve Effective date of registration: 20210812 Granted publication date: 20180327 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Registration number: Y2021330001115 |
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Date of cancellation: 20221201 Granted publication date: 20180327 Pledgee: Huzhou Wuxing Rural Commercial Bank Co.,Ltd. high tech Zone Green sub branch Pledgor: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Registration number: Y2021330001115 |
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