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Magnetostriction cantilever beam driven flow control valve and regulation method

A flow control valve, magnetostrictive technology used in the direction of sliding valves, valve details, fluid pressure actuators

Inactive Publication Date: 2016-05-25
NANCHANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the microscopic field, the development of technologies such as biogenetic engineering, new drug development, and aerospace precision drive and control requires people to precisely control the dosage of various components. The traditional ml-level flow control technology has gradually been unable to satisfy people's experiments and The need for control, thus promoting people's research on microfluidic control technology

Method used

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  • Magnetostriction cantilever beam driven flow control valve and regulation method
  • Magnetostriction cantilever beam driven flow control valve and regulation method
  • Magnetostriction cantilever beam driven flow control valve and regulation method

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1 as figure 1 Shown: a flow control valve driven by a magnetostrictive cantilever beam, including a cavity double-circle table valve body 3, a cylindrical valve core 2 placed in the cavity of the cavity double-circle table valve body 3 and a sleeve set in the cavity The coil 4 on the right small round platform of the double-circle platform valve body 3; the left big end of the cylindrical valve core 2 is slidingly matched with the cavity of the double-circle platform valve body 3, and the left end of the metal flake-shaped cantilever beam 6 is in contact with the cylindrical valve body. The core 2 is adhesively connected, and the right end of the metal flake-shaped metal cantilever beam 6 is glued to the small end of the cantilever beam fixed end 8; the metal flake-shaped cantilever beam 6 is symmetrically glued on the cylindrical valve core 2 and the cantilever beam fixed end 8 and the following ones, the magnetostrictive thin 5 is glued on the sheet metal cant...

Embodiment 2

[0021] Example 2 as Figure 1-3 Shown:

[0022] A method for adjusting the flow rate of a hydraulic transmission system using a flow control valve driven by a magnetostrictive cantilever beam, comprising:

[0023] Direct current is fed into the coil 4, and a directional magnetic field will be generated in the axial direction. At this time, the magnetostrictive sheet 5 will elongate along the direction of the directional magnetic field under the action of the directional magnetic field. Glue together, so the elongation of the magnetostrictive sheet 5 will make the metal foil cantilever beam 6 bend, and drive the cylindrical valve core 2 to move to the right along the axial direction, because the big head of the cantilever beam fixed end 8 is clamped by two tight The fixed screw 7 is tightened; the cylindrical valve core 2 moves to the right along the axial direction so that the annular oil groove 11 communicates with the oil inlet hole 9 and the oil outlet hole 10 to form a ...

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PUM

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Abstract

The invention relate to a magnetostriction cantilever beam driven flow control valve and a regulation method thereof. A cylindrical valve element is arranged in a cavity of a valve body, a right small circular frustum of the valve body is sleeved with a coil, the left large end of the cylindrical valve element is in sliding fit with the inner cavity of the valve body, and the two ends of a metal sheet cantilever beam are connected with the cylindrical valve element and a cantilever beam fixing end respectively in a glued mode; a magnetostriction sheet is arranged on the metal sheet cantilever beam in a glued mode, and the cantilever beam fixing end is fastened through two fastening screws; the lower portion of a left big circular frustum of the valve body is provided with an oil inlet hole communicated with the inner cavity of the valve body, the upper portion of the left big circular frustum of the valve body is provided with an oil outlet hole communicated with the inner cavity of the valve body, the left big end of the cylindrical valve element is provided with an annular oil groove, the width of the annular oil groove is identical to the diameter of the oil inlet hole and the oil outlet hole, the annular oil groove, the oil inlet hole and the oil outlet hole are staggered in position and not communicated, and an adjusting screw is arranged at the top end of the left big circular frustum of the valve body; the opening degree of a flow valve opening is controlled by controlling the current of an input coil, and then the flow in a hydraulic system is controlled precisely.

Description

technical field [0001] The invention relates to a control element in a hydraulic transmission system, in particular to a flow control valve driven by a magnetostrictive cantilever beam and an adjusting method thereof. Background technique [0002] A flow valve is a control element that accompanies hydraulic transmission. Hydraulic transmission is a form of transmission that utilizes the pressure energy of liquids for energy transfer, conversion and control. After several centuries of development and improvement, hydraulic transmission as a mature solution has been used in various aspects, including engineering machinery, agricultural machinery, construction machinery, automobiles, metallurgical machinery, ordinary and precision machine tools, etc. In addition, in military and special fields, hydraulic transmission also plays an important role, such as giant antenna control devices, flow buoys, lifting and rotating stages, etc. [0003] As the control element in the hydraul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K31/06F16K3/26
CPCF15B13/02F16K3/262F16K31/0668
Inventor 徐斌卢全国祝志芳何翠群唐刚闫肖肖李志彪
Owner NANCHANG INST OF TECH