CN204300380U - Magnetorheological pressure control valve - Google Patents
Magnetorheological pressure control valve Download PDFInfo
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- CN204300380U CN204300380U CN201420755123.1U CN201420755123U CN204300380U CN 204300380 U CN204300380 U CN 204300380U CN 201420755123 U CN201420755123 U CN 201420755123U CN 204300380 U CN204300380 U CN 204300380U
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- valve body
- lower valve
- upper valve
- valve core
- magnetic
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Abstract
The utility model relates to a kind of magnetorheological pressure control valve.This control valve comprises valve gap, coil block 2, upper valve body, lower valve body, lower valve core, first and second rubber seal, active chamber, upper valve, Returnning spring, adjusting nut, and valve gap and lower valve body are fixedly connected on the upper outside of lower valve body; Upper valve body and adjusting nut are connected to inside upper valve body, are provided with the Returnning spring of compressive state below adjusting nut, and the below of Returnning spring is pressed in the top of upper valve core, and upper valve core is arranged within upper valve body; Be pressed in the upper end of lower valve core uppermost disk below upper valve core, lower valve core is arranged within lower valve body, is pressed in the upside of lower valve body oiler below lower valve core; Form active 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.Coil block is arranged in the upside of active chamber by the utility model, and away from magnetic flow liquid, electromagnetic coil heating is less on the impact of magnetic flow liquid, and the radiating effect of magnetic flow liquid is better.
Description
Technical field
The utility model relates to a kind of magnetorheological pressure control valve, particularly carry out a cracking pressure for control valve by controlling the spool extruding force coming from magnetic flow liquid suffered in movement process, and then realize the magnetorheological pressure control valve of hydraulic system pressure control.
Background technique
Common pressure control valve carrys out control system pressure usually through the mode of the pretightening force controlling valve core spring.Traditional pressure controlled valve controls the pretightening force of valve core spring by the magnetic field changing electromagnetic coil, thus changes power required when spool is opened, and then the pressure of control system.In traditional design, require high to machining accuracy, homogeneity of product is poor; Very high to the requirement of valve core spring, and not easily realize quick, the stepless change of pressure; Spool amount of movement is general all less; The power consumed is very large, and energy efficiency is not high; Pressure adjustable scope under certain volume requires is little.
Magnetorheological pressure control valve described in earlier application ZL 2,012 2 0409103.X, its deficiency is that the structure realized needed for this effect pressure controlled is too complicated, and required sensor is expensive and make controlling method complicated; Valve inner employs 4 O type circle sealings, and this is for processing and assemble all more loaded down with trivial details; Coil block is arranged in the outside of active chamber, limits the effective dimensions of active chamber; In addition, the magnetic line of force in designed magnetic field is set up and is needed by the structure beyond valve body, and this have impact on the maximization of control valve beneficial aspects.
Along with the development of modern science and technology, the improving constantly of application request, also pressure controlled valve is proposed to the requirement of miniaturization, intellectuality, economization and energy-conservation height such as grade.This just needs the working principle to pressure controlled valve, structure carries out innovative design.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, easily manufactured, energy efficiency is high, pressure response is fast, and the magnetorheological pressure control valve of feasible system pressure steplessization, intelligent control.
Realizing the technological scheme that the purpose of this utility model takes is: this pressure controlled valve comprises valve gap, by coil and the coil block formed every magnetic overcoat, upper valve body, lower valve body, lower valve core, the first rubber seal, active chamber, upper valve core, Returnning spring, adjusting nut and the second rubber seal built with magnetic flow liquid, the upper outside that described valve gap is 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 resistent ring 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 upper valve body outer magnetic guiding loop, upper valve body magnetism resistent ring and upper valve body; Upper valve body and adjusting nut are threadedly connected to the inner side of magnetic guiding loop in upper valve body, and adjusting nut is permeability magnetic material; Be provided with the Returnning spring of compressive state below adjusting nut, the below of Returnning 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; Be pressed in the upper end of lower valve core uppermost disk below upper valve core, lower valve core is arranged within lower valve body, is pressed in the upside of lower valve body oiler below lower valve core, and lower valve core is permeability magnetic material; Form active 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 utility model has the following advantages and good effect relative to prior art:
1, coil block is arranged in the upside of active chamber by the utility model, and away from magnetic flow liquid, electromagnetic coil heating is less on the impact of magnetic flow liquid, and the radiating effect of magnetic flow liquid is better.
2, the utility model utilizes the working principle of magnetorheological squeeze mode and electromagnetic coil is arranged in the outside of active chamber, can design magnetic circuit trend and spool size relatively flexibly.Compared with other pressure controlled valve, the diameter of the extruding disk on the upside of lower valve core is larger, and when uniform pressure control range, the number of turn of required electromagnetic coil is less, reduces coil heating; Under identical voltage and overall dimensions condition, larger pressure control range can be obtained.
3, the utility model structure is simple, easily manufactured, can access ECU (Electrical Control Unit) and realize intelligentized control method, and can realize controlling steplessization of pressure.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is magnetic flow liquid working principle schematic diagram in utility model works chamber.
Fig. 3 is the schematic diagram of magnetic line of force trend in the utility model magnetic circuit.
Embodiment
Shown in accompanying drawing 1: this magnetorheological pressure control valve comprises: valve gap 1, by coil and the coil block 2 formed every magnetic overcoat, upper valve body 3, lower valve body 4, lower valve core 5, active chamber 7, upper valve core 8, Returnning spring 10, adjusting nut 11 and multiple rubber seal (6,9) built with magnetic flow liquid.The upper outside that described valve gap is 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 resistent ring 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 resistent ring 3-2 and upper valve body; Upper valve body 3 and adjusting nut 11 are threadedly connected to the inner side of magnetic guiding loop 3-3 in upper valve body, and adjusting nut 11 is permeability magnetic material; Adjusting nut 11 is provided with the Returnning spring 10 of compressive state below, and the below of Returnning 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; Be pressed in the upper end of lower valve core 5 uppermost disk below upper valve core 8, lower valve core 5 is arranged within lower valve body 4, and be pressed in the upside of lower valve body 4 oiler 4-4 below lower valve core 5, lower valve core 5 is permeability magnetic material; Form active chamber 7 between upper valve body 3 and lower valve body 4, active 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 outlet 4-3, oiler 4-4.
As shown in Figure 1, magnetic rheological liquid is filled in the magnetorheological pressure control valve active chamber 7 made according to such scheme.Magnetic flow liquid, under magnetic fields, is changed to the particular matter of similar solid by common Newtonian fluid, present 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 intensity and magnetic flow liquid.The process of magnetic flow liquid solidification is reversible, and when removing magnetic field, magnetic flow liquid becomes again common Newtonian fluid again.Magnetic rheology effect is reversible, rapidly and the feature being easy to control make magnetorheological pressure control valve can to become in electrical control and mechanical system structure simply and respond device fast.
The utility model utilizes the working 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 lower valve core 5 is subject to oiler 4-4 inner high voltage oil starts to move up, the magnetic flow liquid on the upside of active chamber 7 is squeezed and produces extruding force, hinders lower valve core 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, lower valve core 5, upper valve body, magnetic guiding loop 3-3, adjusting nut 11 are permeability magnetic material to the utility model; Upper valve body magnetism resistent ring 3-2, lower valve body magnetism resistent ring 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 by magnetic flow liquid vertical with the flow direction of magnetic flow liquid, makes magnetic flow liquid normally work.
The utility model can be applicable to vibration damper, but the utility model application is not limited to this.This use sentenced in vibration damper is an application example, and its working principle is described.As shown in Figure 1: the coil block 2 in magnetorheological pressure control valve is connected with control unit, the high pressure oil in vibration damper flows into from the oiler 4-4 of lower valve body 4, and on lower valve body 4, oil outlet 4-3 is connected with vibration damper low-pressure cavity.The electric current passed through in control unit control coil assembly 2 carrys out the magnetic intensity of control action magnetic flow liquid in active chamber 7 and then changes the yield strength of magnetic current liquid.Carry out in the following manner during the magnetorheological pressure control valve work of making according to such scheme: 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 active chamber 7, magnetic flow liquid yield strength increases, and the movement of lower valve core 5 is subject to the control of magnetic flow liquid in active chamber 7; Shock absorbers compression, vibration damper cavity of resorption pressure increase, the oil liquid pressure in oiler 4-4 raises, and the lifting force acting on lower valve core 5 increases; When the active force of promotion lower valve core 5 is greater than magnetic flow liquid extruding force sum in Returnning spring 10 thrust and active chamber 7, lower valve core 5 moves form gap between the entrance of lower valve body oiler 4-4, make high pressure oil in oiler 4-4 by oil outlet 4-3 and vibration damper low-pressure cavity UNICOM, oil pressure in oiler 4-4 declines, until when its active force promoting lower valve core 5 equals magnetic flow liquid extruding force sum in Returnning spring 10 thrust and active chamber 7, lower valve core 5 stress balance, in vibration damper, fluid pressure reaches stable; When vibration damper stop motion, under vibration damper, cavity pressure recovers normal pressure by high pressure, oil pressure in oiler 4-4 becomes normal pressure from high pressure, lower valve core 5 starts to move down, and now, the magnetic flow liquid in active chamber 7 is very little negligible to the resistance of valve core movement, the Returnning spring 10 being in compressive state promotes lower valve core 5 by upper valve core 8, lower valve core 5 is moved down fast again contact with lower valve body 4, oiler 4-4 disconnects with oil outlet 4-3 again, and magnetorheological pressure control valve restPoses; Lower valve core 5 moves past in journey, the size of current passed through in control unit control coil assembly 2, obtains different magnetic intensities, and the yield strength of magnetic flow liquid in active chamber 7 is changed, the active force that magnetic flow liquid acts on lower valve core 5 changes, thus realizes the Stress control to fluid.When the yield strength of magnetic flow liquid becomes very big, the pressure-bearing scope of the utility model application can be very large.
Claims (5)
1. a magnetorheological pressure control valve, this pressure controlled valve comprises valve gap (1), by coil and the coil block (2) formed every magnetic overcoat, upper valve body (3), lower valve body (4), lower valve core (5), the first rubber seal (6), active chamber (7), upper valve core (8), Returnning spring (10), adjusting nut (11) and the second rubber seal (9), it is characterized in that: the upper outside that described valve gap (1) is permeability magnetic material, valve gap (1) and lower valve body (4) are fixedly connected on lower valve body (4); Described lower valve body (4) is welded by lower valve body magnetism resistent ring (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 upper valve body outer magnetic guiding loop (3-1), upper valve body magnetism resistent ring (3-2) and upper valve body; Upper valve body (3) and adjusting nut (11) are threadedly connected to the inner side of magnetic guiding loop in upper valve body (3-3), adjusting nut (11) is provided with the Returnning spring (10) of compressive state below, the below of Returnning 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) below is pressed in the upper end of lower valve core (5) uppermost disk, and lower valve core (5) is arranged within lower valve body (4), and lower valve core (5) below is pressed in the upside of lower valve body (4) oiler (4-4); Active 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 outlet (4-3), oiler (4-4).
2. a kind of magnetorheological pressure control valve according to claim 1, is characterized in that: described active chamber (7) is built with magnetic flow liquid.
3. a kind of magnetorheological pressure control valve according to claim 1, is characterized in that: described coil block (2) is arranged in the upside of active chamber.
4. a kind of magnetorheological pressure control valve according to claim 1, is characterized in that: described lower valve body (4) is provided with oil outlet (4-3), oiler (4-4).
5. a kind of magnetorheological pressure control valve according to claim 1, is characterized in that: in the outer magnetic guiding loop (3-1) of valve gap (1), upper valve body, lower valve body magnetic conduction main body (4-2), lower valve core (5), upper valve body, magnetic guiding loop (3-3), adjusting nut (11) are permeability magnetic material; Upper valve body magnetism resistent ring (3-2), lower valve body magnetism resistent ring (4-1), upper valve core (8) are NULL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755123.1U CN204300380U (en) | 2014-12-05 | 2014-12-05 | Magnetorheological pressure control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420755123.1U CN204300380U (en) | 2014-12-05 | 2014-12-05 | Magnetorheological pressure control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300380U true CN204300380U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420755123.1U Withdrawn - After Issue CN204300380U (en) | 2014-12-05 | 2014-12-05 | Magnetorheological pressure control valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN204300380U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715802A (en) * | 2014-12-05 | 2016-06-29 | 长春孔辉汽车科技股份有限公司 | Magnetorheological pressure control valve |
| CN106958680A (en) * | 2016-01-12 | 2017-07-18 | 桑宇宏 | A kind of fluid pressure control valve |
| CN113007425A (en) * | 2021-03-31 | 2021-06-22 | 重庆大学 | Magneto-rheological semi-active and active integrated flow valve based on electromagnetic adjustment |
-
2014
- 2014-12-05 CN CN201420755123.1U patent/CN204300380U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715802A (en) * | 2014-12-05 | 2016-06-29 | 长春孔辉汽车科技股份有限公司 | Magnetorheological pressure control valve |
| CN105715802B (en) * | 2014-12-05 | 2018-03-27 | 长春孔辉汽车科技股份有限公司 | Magnetorheological pressure control valve |
| CN106958680A (en) * | 2016-01-12 | 2017-07-18 | 桑宇宏 | A kind of fluid pressure control valve |
| CN113007425A (en) * | 2021-03-31 | 2021-06-22 | 重庆大学 | Magneto-rheological semi-active and active integrated flow valve based on electromagnetic adjustment |
| CN113007425B (en) * | 2021-03-31 | 2022-11-15 | 重庆大学 | Magneto-rheological semi-active and active integrated flow valve based on electromagnetic adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGCHUN KONGHUI AUTOMATIVE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 130012 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Patentee after: Changchun Konghui Automative Technology Co., Ltd. Address before: 130012 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Patentee before: KH Automotive Technologies (Changchun) Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150429 Effective date of abandoning: 20180327 |
|
| AV01 | Patent right actively abandoned |