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Magnetorheological valve

A magnetorheological valve and flow plate technology, applied in the field of magnetorheological valves, can solve the problems of restricting the development and application of magnetorheological valves, narrow pressure adjustment range, small damping force of magnetorheological valves, etc., so as to improve the utilization of magnetic energy. efficiency, improve the utilization rate, and reduce the effect of magnetic flux leakage

Inactive Publication Date: 2012-03-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of the working gap of these three magnetorheological valves only considers the vertical magnetic line segment of the magnetorheological fluid, and the effect of the magnetic field on the magnetorheological fluid, and does not consider the parallel magnetic force line segment of the magnetorheological fluid, and the effect of the magnetic field on the magnetorheological fluid. , the damping force generated by the magnetorheological valve is small, and the pressure adjustment range is narrow, so it can only be used in low-pressure systems, which limits the development and application of magnetorheological valves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: as Figure 1-2 As shown, a magnetorheological valve includes a left valve joint 1, a left sealing ring 2, a left support flow plate 3, a valve body 4, a coil 5, a valve core 6, a working gap 7, an iron core 8, and a right support flow plate Flow plate 9, right sealing ring 10, right valve joint 11. The coil 5 is wound on the iron core 8 , the iron core 8 is loaded into the valve body 4 through a transition fit, the valve core 6 is loaded into the hole of the iron core 8 , and a working gap 7 is formed between the valve core 6 and the iron core 8 . The working gap 7 has a width of 0.1 mm and a length of 8 mm. The two ends of the spool 6 are respectively supported and axially fixed by the left support flow plate 3 and the right support flow plate 9, and the left support flow plate 3 and the right support flow plate 9 are respectively installed into the left valve joint 1 and the Among the right valve joints 11, the left valve joint 1 and the right valve jo...

Embodiment 2

[0018] Embodiment 2: as Figure 1-2 As shown, a magnetorheological valve includes a left valve joint 1, a left sealing ring 2, a left support flow plate 3, a valve body 4, a coil 5, a valve core 6, a working gap 7, an iron core 8, and a right support flow plate Flow plate 9, right sealing ring 10, right valve joint 11. The coil 5 is wound on the iron core 8 , the iron core 8 is loaded into the valve body 4 through a transition fit, the valve core 6 is loaded into the hole of the iron core 8 , and a working gap 7 is formed between the valve core 6 and the iron core 8 . The working gap 7 has a width of 3 mm and a length of 200 mm. The two ends of the spool 6 are respectively supported and axially fixed by the left support flow plate 3 and the right support flow plate 9, and the left support flow plate 3 and the right support flow plate 9 are respectively installed into the left valve joint 1 and the Among the right valve joints 11, the left valve joint 1 and the right valve jo...

Embodiment 3

[0019] Embodiment 3: as Figure 1-2 As shown, a magnetorheological valve includes a left valve joint 1, a left sealing ring 2, a left support flow plate 3, a valve body 4, a coil 5, a valve core 6, a working gap 7, an iron core 8, and a right support flow plate Flow plate 9, right sealing ring 10, right valve joint 11. The coil 5 is wound on the iron core 8 , the iron core 8 is loaded into the valve body 4 through a transition fit, the valve core 6 is loaded into the hole of the iron core 8 , and a working gap 7 is formed between the valve core 6 and the iron core 8 . The working gap 7 has a width of 1.3 mm and a length of 28 mm. The two ends of the spool 6 are respectively supported and axially fixed by the left support flow plate 3 and the right support flow plate 9, and the left support flow plate 3 and the right support flow plate 9 are respectively installed into the left valve joint 1 and the Among the right valve joints 11, the left valve joint 1 and the right valve j...

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Abstract

The invention relates to a magnetorheological valve, belonging to the technical field of hydraulic transmission. The magnetorheological valve comprises a left valve joint, a left supporting overcurrent plate, a valve body, a coil, a valve core, an iron core, a right supporting overcurrent plate and a right valve joint, wherein the coil is wound on the iron core, the iron core is placed in the valve body, the valve core is placed in the hole of the iron core, and a working clearance is formed between the valve core and the iron core; and two ends of the valve core are respectively fixed by the left supporting overcurrent plate and the right supporting overcurrent plate, the left supporting overcurrent plate and the right supporting overcurrent plate are respectively placed in the left valve joint and the right valve joint, and the left valve joint and the right valve joint are fixed on the valve body. In the magnetorheological valve provided by the invention, adopts a symmetrical structure design is adopted, which facilitates the connection of the two joints. The magnetorheological valve has no motor elements, simple structure, small size and low cost. The valve body, the valve core and the iron core are made of high magnetic-conductive materials for improving the magnetic conductive performance of the valve. The supporting overcurrent plates and the valve joints are made of non magnetic-conductive materials for reducing magnetic flux leakage and improving the utilization rate of magnetic field energy. The magnetorheological valve has wide pressure regulating range, fast response speed and high reliability.

Description

technical field [0001] The invention relates to a magneto-rheological valve, which belongs to the technical field of hydraulic transmission. Background technique [0002] Magneto-rheological fluid is a kind of smart material. When it is not affected by a magnetic field, it presents a Newtonian fluid state and can flow freely. Under the action of an external magnetic field, its structure and properties will undergo peculiar changes, and it can be transformed from a liquid with a good flow state into a solid state in an instant, and its viscosity will increase by several orders of magnitude in a very short time, showing a viscous Plastic fluid, and exhibits a certain shear yield stress, which increases with the increase of the applied magnetic field strength. After the magnetic field is removed, the magnetorheological fluid changes from solid to liquid again, which is continuous, reversible and controllable. The magnetorheological valve designed according to the magnetorheol...

Claims

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Application Information

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IPC IPC(8): F16K31/06
Inventor 王京涛吴张永王娴杨文勇王庆辉温成卓吴喜高晓艳曲金涛刘云韩
Owner KUNMING UNIV OF SCI & TECH
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