A mixed-flow magneto-rheological valve with wide pressure drop adjustment range

A pressure drop adjustment, magnetorheological valve technology, applied in valve details, valve devices, engine components, etc., can solve the problems of limited application occasions, large external structure and size, etc., to achieve convenient and accurate positioning, increase effective length, ensure Effect of Damping Gap Thickness

Active Publication Date: 2018-02-16
EAST CHINA JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Chinese invention patent with the publication number CN 1314903C discloses a magneto-rheological fluid control valve with two kinds of fluid flow resistance channels. A section of effective damping gap constitutes a four-stage controllable pressure drop; but the size of the patented structure is too large, which limits its application

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  • A mixed-flow magneto-rheological valve with wide pressure drop adjustment range
  • A mixed-flow magneto-rheological valve with wide pressure drop adjustment range
  • A mixed-flow magneto-rheological valve with wide pressure drop adjustment range

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0015] Such as figure 1 As shown, the present invention includes: left end cover 1, sealing ring I2, sealing ring II3, left magnetic isolation ring 4, valve body 5, excitation coil 6, valve sleeve 7, right magnetic isolation ring 8, sealing ring III9, sealing ring IV10 , Right end cover 11, screw II 12, right magnetic conduction disc 13, right positioning disc 14, right damping disc 15, spacer disc 16, left damping disc 17, left positioning disc 18, left magnetic conduction disc 19 and screw Ⅰ20 .

[0016] figure 2 Shown is the structure schematic diagram of the spacer disk 16 of the present invention, the spacer disk 16 is radially processed with four evenly arranged small circular protrusions, and the spacer disk 16 can be radially positioned through the circular protrusions; in addition, a magnetic The fluid flow channel in the axial direction of the r...

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Abstract

The invention discloses a mixed flow magneto-rheological valve with a wide pressure drop adjustment range, which consists of an end cover, a valve sleeve, a valve body, a magnetic conducting disc, a magnetic isolation ring, a magnetic isolation disc, a positioning disc, a damping disc and an excitation composed of coils, etc. The liquid flow direction between the positioning disc and the damping disc is perpendicular to the direction of the magnetic field, forming two radial damping gaps; a spacer is set between the two damping discs, and magnetic isolation rings are set at both ends of the valve sleeve, so that the ring damping gap The direction of the liquid flow is perpendicular to the direction of the magnetic field, forming two ring-shaped damping gaps. On the premise of not increasing the overall size of the valve, the radial flow magneto-rheological valve becomes a mixed-flow magneto-rheological valve with both circular flow and radial flow, which effectively lengthens the damping length of the magnetorheological fluid and improves the magnetic force lines. The utilization rate makes the valve inlet and outlet pressure drop adjustment range wide and the pressure drop large. The magneto-rheological valve has the advantages of accurate positioning of the damping gap, compact structure, small size and convenient assembly, and is especially suitable for a hydraulic control system with adjustable multi-stage pressure.

Description

technical field [0001] The invention relates to a magneto-rheological valve, in particular to a mixed-flow magneto-rheological valve with a wide adjustment range of pressure drop. Background technique [0002] With the continuous development of high technology, the hydraulic control system is also developing in the direction of miniaturization, intelligence and economy. As the core component of the hydraulic control system, the traditional hydraulic valve has poor reliability due to its relatively moving parts, which limits its application in some fields. Magnetorheological fluid is a suspension formed by dispersing and dissolving fine magnetic particles in an insulating carrier liquid, which has controllable rheological properties with an external magnetic field. Based on the magnetorheological effect of magnetorheological fluid, the magnetorheological valve with magnetorheological fluid as the working medium can better improve the shortcomings of traditional hydraulic val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 胡国良钟芳刘丰硕徐明
Owner EAST CHINA JIAOTONG UNIVERSITY
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