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Three-stage pressure regulating double-coil type magneto-rheological valve

A magnetorheological valve, double coil technology, applied in the direction of fluid pressure actuation device, servo motor assembly, mechanical equipment, etc., can solve the problem of hindering the development of magnetorheological valve industrial application, narrow pressure condition range, inlet and outlet pressure difference Small problems, etc., to achieve the effect of flexible control of magnetic field strength, wide pressure adjustment range, and good control performance

Inactive Publication Date: 2014-12-24
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure difference between the inlet and outlet of the commonly used single-coil magneto-rheological valve is small, and the range of pressure conditions is also narrow, which hinders the development of industrial application of the magnetorheological valve.

Method used

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  • Three-stage pressure regulating double-coil type magneto-rheological valve

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0013] like figure 1 As shown, the present invention includes: screw I1, left end cover 2, left positioning block 3, left guide block 4, coil I5, coil II6, right positioning block 7, right end cover 8, screw II9, sealing ring II10, right guide block 11 , right positioning pin 12, valve body 13, valve core 14, left positioning pin 15 and sealing ring I16; left end cover 2 and valve body 13 are fixedly connected by screw I1, and the connection between left end cover 2 and valve body 13 is carried out by sealing ring I16 Sealing; the left positioning block 3 is transitionally matched with the valve body 13, and its left end is pressed by the left end cover 2; the left end of the left guide block 4 is close to the left positioning block 3, and its right end is close to the valve core 14; the left positioning block 3, the left guide block 4 and the valve core 14 ...

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Abstract

The invention discloses a three-stage pressure regulating double-coil type magneto-rheological valve which is composed of an end cover, a valve core, a valve body, a positioning block, a guide block, a positioning pin, a coil I, a coil II, a sealing ring, a screw and the like. When current with certain direction and size is input into the coil I and the coil II, a magnetic field can be generated in three damping gaps formed by the valve core and the valve body; and the direction of the magnetic field is vertical to the direction of a flowing direction of magneto-rheological liquid. When the magneto-rheological liquid flows into the damping gaps of the magneto-rheological valve, the magneto-rheological liquid is rapidly changed into a semi-solid state under the effect of the magnetic field; the viscosity of the magneto-rheological liquid is rapidly increased along the magnetic induction strength so as to cause that a pressure difference between two ends of the damping gaps to be increased; and therefore, the flowing of the magneto-rheological liquid is slowed or stopped. The pressure difference between the two ends of the damping gaps is controlled through controlling the size and the direction of the current input into the two coils, so as to form three-stage pressure regulation and control a pressure difference between an inlet and an outlet of the magneto-rheological valve. The magneto-rheological valve is applicable to a multi-stage low-pressure small-flow hydraulic control system with an adjustable pressure.

Description

technical field [0001] The invention relates to a magneto-rheological valve, in particular to a three-stage pressure-regulating double-coil magneto-rheological valve. Background technique [0002] Hydraulic control systems are not only widely used in civil machinery processing, vehicles and construction industries, but also in aerospace, aviation and military products. In the hydraulic control system, the hydraulic control valve is mainly used to control the pressure, flow and flow direction of the liquid flow in the hydraulic actuator, so as to control the start and stop of the hydraulic actuator, change the speed, direction, force and action sequence of the movement, etc. To meet the requirements of various hydraulic equipment for load conditions such as motion, speed, force and torque. Therefore, the performance of the hydraulic control valve directly affects the static characteristics, dynamic characteristics and working reliability of the hydraulic system, and is one o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02
Inventor 胡国良龙铭喻理梵黄敏李海燕彭珣
Owner EAST CHINA JIAOTONG UNIVERSITY
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