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A flow control valve driven by a magnetostrictive cantilever beam and its adjustment method

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

Inactive Publication Date: 2017-10-13
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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  • A flow control valve driven by a magnetostrictive cantilever beam and its adjustment method
  • A flow control valve driven by a magnetostrictive cantilever beam and its adjustment method
  • A flow control valve driven by a magnetostrictive cantilever beam and its adjustment 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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Abstract

The invention relates to a flow control valve driven by a magnetostrictive cantilever beam and its adjustment method. The cylindrical valve core is placed in the cavity of the valve body, and the coil is set on the right small round platform of the valve body: the left big end of the cylindrical valve core Sliding fit with the inner cavity of the valve body, the two ends of the metal sheet-shaped cantilever beam are respectively glued to the cylindrical valve core and the fixed end of the cantilever beam; The fastening screw is tightened; there is an oil inlet hole connected to the inner cavity at the lower part of the left big round platform of the valve body, and an oil outlet hole connected to the inner cavity at the upper part of the left big round platform of the valve body. The large end is provided with an annular oil groove with the same width as the oil inlet hole and the oil outlet hole, and the positions are staggered and not connected to each other. There is an adjusting screw on the top of the left big round platform of the valve body; the flow valve is controlled by controlling the current of the input coil. The opening of the port can precisely control the flow rate in the hydraulic system.

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 Patents(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